Including Solid, Extended Surface, Fluid Contact Reaction Means; E.g., Inert Raschig Rings, Particulate Absorbent, Particulate Or Monolithic Catalyst, Etc. Patents (Class 422/177)
  • Patent number: 11808226
    Abstract: A method (200) for operating an exhaust gas system (120) that includes a first catalytic converter (122) and at least one second catalytic converter (124), which are both arranged downstream from an internal combustion engine (110) The internal combustion engine (110) is controlled to generate a rich exhaust gas having a first rich gas portion, (220) a fill level of the second catalytic converter (124) is ascertained with respect to at least one lean gas component that is storable in the second catalytic converter and, if the ascertained fill level drops below (230) a minimum fill level, (240) the internal combustion engine (110) is controlled to generate a lean exhaust gas. The internal combustion engine (110) is then controlled to generate a rich exhaust gas having a second rich gas portion, and subsequently controlled (210) to generate the rich exhaust gas having the first rich gas portion.
    Type: Grant
    Filed: October 5, 2022
    Date of Patent: November 7, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Alexander Baumann, Frank Meier, Jan Kappa
  • Patent number: 11808191
    Abstract: A device for the aftertreatment of exhaust gases from an internal combustion engine has a tubular first flow section, a deflecting region and a annular second flow section, the second flow section being arranged between an inner wall delimiting the first flow section and an outer wall delimiting the second flow section. At least one annular honeycomb body is arranged in the second flow section, and at least one annular heating disk is arranged in the second flow section, the heating disk being electrically contactable by at least two electrical feedthroughs, which are arranged on the outer wall.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: November 7, 2023
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Sebastian Dung, Peter Hirth
  • Patent number: 11806704
    Abstract: The present specification discloses a membrane reactor comprising a reaction region; a permeate region; and a composite membrane disposed at a boundary of the reaction region and the permeate region, wherein the reaction region comprises a bed filled with a catalyst for dehydrogenation reaction, wherein the composite membrane comprises a support layer including a metal with a body-centered-cubic (BCC) crystal structure, and a catalyst layer including a palladium (Pd) or a palladium alloy formed onto the support layer, wherein ammonia (NH3) is supplied to the reaction region, the ammonia is converted into hydrogen (H2) by the dehydrogenation reaction in the presence of the catalyst for dehydrogenation reaction, and the hydrogen permeates the composite membrane and is emitted from the membrane reactor through the permeate region.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: November 7, 2023
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Young Suk Jo, Chang Won Yoon, Hyuntae Sohn, Hyangsoo Jeong, Seong Cheol Jang, Yeong Cheon Kim, Jonghee Han, Suk Woo Nam
  • Patent number: 11808188
    Abstract: A particulate filter disclosed herein includes a wall-flow structure substrate 10 and a wash coat layer 20 held inside a partition 16 of the substrate 10. The wash coat layer 20 includes an inlet layer 22 formed to have predetermined length LA and thickness TA from near an end thereof on an exhaust gas inflow side X1, and an outlet layer 24 formed to have predetermined length LB and thickness TB from near an end thereof on an exhaust gas outflow side X2. The inlet layer 22 and the outlet layer 24 partially overlap each other. In the particulate filter disclosed herein, the inlet layer 22 contains a precious metal catalyst, while the outlet layer 24 contains substantially no precious metal catalyst. The length LA of the inlet layer is 50% or more and 75% or less of a total length L of the partition 16. Thus, the particulate filter is capable of achieving both PM collection performance and pressure-drop reduction performance at high levels.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: November 7, 2023
    Assignee: Cataler Corporation
    Inventors: Ryo Tasaki, Ryota Onoe, Momoko Iwai, Yamato Matsushita
  • Patent number: 11806655
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells and a plugging portion, wherein the partition wall defining inflow cells includes partition wall parts making up sides of polygon that is sectional shape of each cell, the partition wall parts each having a surface that is a face defining the inflow cell, the partition wall part is either a first partition wall part loaded with the exhaust-gas purifying catalyst on the surface so that a percentage of the area loaded therewith exceeds 10%, or a second partition wall part loaded with the exhaust-gas purifying catalyst so that a percentage of the area loaded therewith is 10% or less, and the partition wall is configured to include one or more the first partition wall parts and one or more the second partition wall parts as the partition wall parts.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: November 7, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventor: Kazuya Yuki
  • Patent number: 11808187
    Abstract: A reduction device includes a housing defining an input chamber configured to receive exhaust from a power source, an output chamber, an exhaust channel configured to direct the exhaust from the input chamber to the output chamber, and a longitudinal axis. The reduction device also includes a treatment unit disposed in the exhaust channel and along the longitudinal axis. The treatment unit is configured to at least partly remove pollutant species from the exhaust. The reduction device also includes an attenuation component disposed in the housing and radially outward of the treatment unit. The attenuation component is fluidly connected to the exhaust channel, and is configured to attenuate a range of frequencies corresponding to operation of the power source. Additionally, the exhaust channel prohibits exhaust entering the input chamber from exiting the housing without passing through the treatment unit.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: November 7, 2023
    Assignee: Caterpillar Inc.
    Inventors: Dustin Irvin Landwehr, Jim K Carroll, David Charles Copley, Rakesh Chandran Ramachandran, Timothy Josiah Lee, Yung T. Bui, Anthony C. Rodman
  • Patent number: 11801469
    Abstract: An activated carbon filter for reducing hydrocarbon emissions, includes a plurality of channels, the channels being suitable for the flow of gases therethrough and at least part of the surface of the channel walls having activated carbon for absorbing and/or adsorbing substances, in particular hydrocarbons; and a filter peripheral wall on the outer periphery of the activated carbon filter; wherein the filter peripheral wall includes a barrier layer, in particular in the form of a coating on the outer surface of the filter peripheral wall, preventing or at least significantly reducing the penetration, in particular the diffusion, of gases and/or substances, in particular hydrocarbon-containing gases, through the filter peripheral wall.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: October 31, 2023
    Assignee: A. Kayser Automotive Systems GmbH
    Inventor: Tobias Lang
  • Patent number: 11795855
    Abstract: Provided is an exhaust gas purification catalyst capable of reducing a noble metal amount while maintaining a catalyst performance, which comprises a substrate and at least three catalyst coating layers formed on the substrate, the first and third catalyst coating layers contain Pd as a catalyst metal and are formed in a range of a predetermined length from an upstream end surface in an exhaust gas flow direction, and the second catalyst coating layer contains Rh as a catalyst metal and is formed in a range of a predetermined length from a downstream end surface in the exhaust gas flow direction.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: October 24, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Isao Chinzei, Takahiro Nishio, Shogo Shirakawa, Masahide Miura, Hiromasa Suzuki, Yuki Kido, Minoru Ito, Sho Hoshino, Shin Nakayama
  • Patent number: 11796230
    Abstract: A thermal management system includes a refrigerant receiver configured to store a refrigerant fluid, a closed-circuit refrigeration system having a closed-circuit fluid path with the refrigerant receiver, and with the closed-circuit refrigeration system configured to receive refrigerant from the refrigerant receiver through the closed-circuit fluid path, an open-circuit refrigeration system having an open-circuit fluid path, and with the refrigerant receiver disposed in the open-circuit fluid path, with the open-circuit refrigeration system configured to receive refrigerant through the open-circuit fluid path, and discharge refrigerant fluid through an exhaust line, and an evaporator arrangement configured to receive the refrigerant and to extract heat from at least one heat load, the evaporator arrangement having an inlet and an outlet, with the evaporator disposed in a common portion of the closed-circuit fluid path and the open-circuit fluid path.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: October 24, 2023
    Assignee: Booz Allen Hamilton Inc.
    Inventors: Igor Vaisman, Joshua Peters, Jacob Swain
  • Patent number: 11781431
    Abstract: A high-temperature high-efficiency explosion-proof integrated modular dust removal equipment for pyrolysis raw coal gas, including: a housing internally provided with a chamber, the chamber being enabled a medium to flow from a gas inlet to a gas outlet of the housing; a high-temperature ceramic filter system for dividing the chamber into a dust collection chamber and a gas purification chamber that are individual, and being located in the dust collection chamber to communicate the dust collection chamber and the gas purification chamber; a high-pressure backblow system located in the gas purification chamber and used for performing blowback operation towards the dust collection chamber; and a preliminary dust removal system positioned outside the housing and communicated with the dust collection chamber.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: October 10, 2023
    Assignee: Guoke Yongji (Beijing) Engineering Installation Co., Ltd.
    Inventor: Qianfu Xing
  • Patent number: 11767779
    Abstract: Provided is an exhaust gas purifying filter used with a HC purifying catalyst supported thereon. Numerous pores are formed in partitions of the exhaust gas purifying filter. In a cross-section of the partition, pores are open at a passage surface, having an open end of which the opening diameter is 50 ?m or larger. In the cross-section of the partitions, the partitions include a narrow part where a pore diameter is 5 ?m or more and the pore diameter becomes a minimum in a region. In the cross-section of the partitions, the region is positioned between a pair of virtual lines L1 and L2 extending from opposing sides of the opening end to a passage surface positioned opposite to the opening end along the wall thickness direction X, Z. The pore diameter at the narrow part is 6% or more and less than or equal to 20% of the opening diameter.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: September 26, 2023
    Assignee: DENSO CORPORATION
    Inventors: Hiroaki Kayama, Kazuhiko Koike
  • Patent number: 11759769
    Abstract: Provided is an exhaust gas purification device that allows improving an exhaust gas purification performance. An exhaust gas purification device of the present disclosure includes a substrate and a catalyst layer disposed on the substrate. The catalyst layer contains a porous carrier, a catalytic metal that is supported by the porous carrier and belongs to platinum group, an alkaline earth metal supported by the porous carrier, and an alkaline earth metal not supported by the porous carrier. At least a part of the alkaline earth metal supported by the porous carrier is supported inside the porous carrier.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: September 19, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Isao Chinzei, Seiji Nakahigashi, Takumi Tojo, Masahide Miura, Nobuyuki Takagi, Yoshiteru Yazawa, Sho Hoshino, Minoru Ito, Naoto Fujita, Tomomasa Aikawa
  • Patent number: 11753980
    Abstract: Engine exhaust gas treatment article comprising a contoured honeycomb body (300) including a contoured outlet end face (316) are disclosed. Also disclosed are methods of manufacturing an engine exhaust gas treatment article.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: September 12, 2023
    Assignee: Corning Incorporated
    Inventors: Thorsten Rolf Boger, Ameya Vinay Joshi, Konstantin Vladimirovich Khodosevich, Kunal Upendra Sakekar, Edward Zhmayev
  • Patent number: 11745172
    Abstract: A substrate (11) of an exhaust gas purification catalyst (10) includes inflow-side cells (21), outflow-side cells (22), and porous partition walls (23), each separating the inflow-side cell and the outflow-side cell. Catalyst portions (14, 15) are provided on the surfaces of the partition walls that each face the inflow-side cell and/or the surfaces of the partition walls that each face the outflow-side cell. In a cross section vertical to an exhaust gas flow direction, the percentage of the total area of voids, each void satisfying the expression L/{2(?S)1/2}?1.1 (wherein L is the perimeter of the void in the cross section, and S is the area of the void in the cross section), is greater than 10% to 30% or less based on the apparent area of the catalyst portion present on the partition wall. The content of zirconium element in terms of oxide (amount of ZrO2) in the catalyst portions is from 35 mass % to 85 mass %.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: September 5, 2023
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Yusuke Nagai, Shingo Akita, Hiroki Kurihara, Yoshinori Endo
  • Patent number: 11738313
    Abstract: A mixer arrangement for an exhaust gas system, having an inlet opening through which an exhaust gas mass flow (A) can be guided, and a mixer for swirling the exhaust gas, which has at least one inflow opening that is fluidically connected to the inlet opening, wherein at least one first portion (A1) of the exhaust gas mass flow (A) can be guided through the mixer via the at least one inflow opening, an injection device by means of which an additive can be injected, and a bypass having at least one throughflow opening which is fluidically connected to the inlet opening and through which a second portion (A2) of the exhaust gas mass flow (A) can be guided past the mixer, there being provided at least one regulating body by means of which a flow cross-section Q in the mixer arrangement can be varied such that a ratio V with (formula I) can be varied.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: August 29, 2023
    Assignee: Tenneco GmbH
    Inventors: Eric Hein, Yannick Leske, Anna Menges, Günter Palmer
  • Patent number: 11731072
    Abstract: A pulse ring assembly for air cleaner systems that is adapted to produce a pulse ring of gas to clean a filter element. The air cleaner system may include an outer tube and an inner tube configured to receive the inner tube such that at least a portion of an interior surface of the outer tube faces at least a portion of an exterior surface of the inner tube. The outer tube may include a pulse port extending between the interior and exterior surfaces of the outer tube into an outer tube passageway. Filtered air may be configured to flow from a first filter cartridge, through the outer and inner tubes, and to an engine intake. The system may also include a pulse jet apparatus in fluid communication with the pulse port of the outer tube and configured to direct gas through the pulse port towards the first filter cartridge.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: August 22, 2023
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas R. Olson, Fred H. Wahlquist, David W. Mulder, Robert R. Levac, Daniel E. Adamek
  • Patent number: 11724227
    Abstract: A system and method of operating an air cleaner assembly including a selective scavenging apparatus that may be configured to actuate in response to a pulse cleaning operation. The air cleaner assembly may include an air cleaner housing, filter media positioned within an interior space of the air cleaner housing, a pulse cleaning apparatus extending into the interior space, and the selective scavenging apparatus in fluid communication with an egress aperture of the air cleaner housing. The selective scavenging apparatus may be configured to move fluid and sediment out of the air cleaner housing during a scavenging time period and the pulse cleaning apparatus may be configured to direct a pulse of gas into the clean air space during a cleaning operation. The scavenging time period may start based on the beginning of the cleaning operation and may end based on the completion of the cleaning operation.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: August 15, 2023
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas R. Olson, Robert R. Levac
  • Patent number: 11691106
    Abstract: A selective catalytic reduction catalyst for the treatment of an exhaust gas stream of a passive ignition engine, the catalyst comprising a porous wall-flow filter substrate comprising an inlet end, an outlet end, a substrate axial length (w) extending between the inlet end and the outlet end, and a plurality of passages defined by porous internal walls of the porous wall flow filter substrate; wherein the catalyst further comprises a first coating, said first coating extending over x % of the substrate axial length from the inlet end toward the outlet end of the substrate, x being in the range of from 10 to 100, wherein the first coating comprises copper and an 8-membered ring pore zeolitic material; wherein the catalyst further comprises a second coating, the second coating extending over y % of the substrate axial length from the outlet end toward the inlet end of the substrate, y being in the range of from 20 to 90, wherein the second coating comprises copper, and optionally an 8-membered ring pore zeolit
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: July 4, 2023
    Assignee: BASF Corporation
    Inventors: Matthias Peter, Susanne Stiebels, Karifala Dumbuya, Claudia Zabel
  • Patent number: 11686235
    Abstract: A method for controlling an exhaust gas aftertreatment system, wherein the system includes a first selective catalytic reduction (SCR) device, a catalytic particulate filter arrangement arranged downstream of the first SCR device, and a second selective catalytic reduction (SCR) device arranged downstream of the catalytic particulate filter arrangement. The method includes estimating future exhaust conditions based upon predicted vehicle operating conditions (s403); —estimating a future NOx conversion demand based on the estimated future exhaust conditions (s405); —dosing a reducing agent from a first reducing agent dosing device at a rate based at least on the estimated future NOx conversion demand (s406).
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: June 27, 2023
    Assignee: Scania CV AB
    Inventor: Björn Harnemo
  • Patent number: 11684911
    Abstract: A method for manufacturing a catalyst includes depositing a catalyst slurry containing at least a catalyst metal and water on a support, depositing particles of a water-absorbing polymer on a surface of the catalyst slurry, expanding the particles to a predetermined size with the water present in the catalyst slurry, and firing the support having the catalyst slurry and the particles deposited on the catalyst slurry.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: June 27, 2023
    Assignee: SUBARU CORPORATION
    Inventor: Ryo Nagai
  • Patent number: 11685496
    Abstract: A reaction device of a marine SCR system comprises a conveying unit (110), a reaction chamber (120), at least one catalyst module (130), and an air homogenization chamber (140), wherein, the conveying unit (110) includes an input pipeline (111) and an output pipeline (112) sleeved outside the input pipeline (111). One end of the reaction chamber (120) is connected to the conveying unit (110). The reaction chamber (120) comprises an inner cylinder (121) and an outer cylinder (122) sleeved outside the inner cylinder (121), the inner cylinder (121) is in communication with the input pipeline (111), and the outer cylinder (122) is in communication with the output pipeline (112). The catalyst module (130) is provided between the inner cylinder (121) and the outer cylinder (122). The air homogenization chamber (140) is connected to the other end of the reaction chamber (120) and is in communication with both the inner cylinder (121) and the outer cylinder (122).
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: June 27, 2023
    Assignee: SHANGHAI MARINE DIESEL ENGINE RESEARCH INSTITUTE
    Inventors: Xiaobo Li, Mingshan Guo, Zhipeng Hou, Xizhao Zhang, Teng Shen, Zhenhua Wang, Wenjie Kong, Yi Lu, Lili Shi, Yuanyuan Huang
  • Patent number: 11682374
    Abstract: A soundproof structure body includes a first tube structure and a second tube structure connected to the first tube structure and having a cross-sectional area different from the first tube structure, in which a structure body having a cross-sectional area smaller than a cross-sectional area of the first tube structure is installed in the first tube structure, and a transmission loss in a case where the structure body is installed in the first tube structure with respect to a case where the structure body is not installed in the first tube structure is positive at two frequencies adjacent to each other and difficult to generate an air column resonance mode in the first tube structure. This soundproof structure body generates a soundproof effect even at frequencies other than air column resonance of a tube structure such as a duct or a muffler, has a small size, and can obtain a high transmission loss in a wide-band.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: June 20, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Akihiko Ohtsu, Shinya Hakuta, Shogo Yamazoe, Yoshihiro Sugawara
  • Patent number: 11679359
    Abstract: The present invention relates to a wall flow filter, to a method for the production and the use of the filter for reducing harmful exhaust gases of an internal combustion engine. Particle filters are commonly used for filtering exhaust gases from a combustion process. Also disclosed are novel filter substrates and their specific use in exhaust gas aftertreatment.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: June 20, 2023
    Assignee: UMICORE AG & CO. KG
    Inventors: Astrid Mueller, Meike Antonia Gotthardt, Martin Foerster, Stephanie Spiess, Yannic Weigl, Carsten Herzog
  • Patent number: 11661879
    Abstract: A tubular member for an exhaust gas treatment device according to at least one embodiment of the present invention includes: a tubular main body made of a metal; and an insulating layer formed at least on an inner peripheral surface of the tubular main body. The insulating layer contains glass, the glass contains barium, and the glass has a content of barium of 5 mol % or more.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: May 30, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventors: Daichi Tanaka, Yukinari Shibagaki
  • Patent number: 11661875
    Abstract: A tubular member for an exhaust gas treatment device according to at least one embodiment of the present invention includes: a tubular main body made of a metal; and an insulating layer formed at least on an inner peripheral surface of the tubular main body. The insulating layer contains glass containing a crystalline substance, and the glass contains silicon, boron, and magnesium.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: May 30, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventors: Daichi Tanaka, Yukinari Shibagaki
  • Patent number: 11623180
    Abstract: A catalytic converter is provided with: an inlet-side diffuser part; an outlet-side diffuser part; a case including an upstream-side cylindrical part and a downstream-side cylindrical part; an inner liner provided in the upstream-side cylindrical part; a first catalyst retained inside the inner liner; and a second catalyst retained inside the downstream-side cylindrical part. An end face of the second catalyst faces a peripheral surface of the inner liner. An annular flow path is provided between the upstream-side cylindrical part and the inner liner, and the first catalyst is insulated from heat by the annular flow path. A part of exhaust flows into the second catalyst via the annular flow path.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: April 11, 2023
    Assignees: NISSAN MOTOR CO., LTD., RENAULT S. A. S.
    Inventors: Takayuki Hamamoto, Hirofumi Tsuchida, Daisuke Takaki, Yuta Ishigaki
  • Patent number: 11612018
    Abstract: A heater may include: a conductive ceramic cylinder tube in which cell-arrays are concentrically arranged, each cell-array including cells which are arranged in a circumferential direction of the ceramic cylinder tube; an inner electrode electrically coupled to an inner wall portion of the ceramic cylinder tube; and an outer electrode electrically coupled to an outer wall portion of the ceramic cylinder tube. Non-linear portions are radially arranged in the ceramic cylinder tube, each non-linear portion extending in a radial direction of the ceramic cylinder tube while having a plurality of bends or curves between the inner wall portion and outer wall portion of the ceramic cylinder tube. The inner and outer electrodes are provided such that current flows radially at least via said non-linear portions between the inner and outer electrodes.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: March 21, 2023
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukio Miyairi, Masaaki Masuda, Xavier Bartolo
  • Patent number: 11598239
    Abstract: An exhaust aftertreatment system includes a cross-flow selective catalytic reduction catalyst. The cross-flow selective catalytic reduction catalyst includes a housing and a substrate assembly. The substrate assembly includes a plurality of first substrate layers defining a plurality of first flow channels and a plurality of second substrate layers defining a plurality of second flow channels. The exhaust aftertreatment system includes a passive NOx adsorber. The passive NOx adsorber includes a housing. The housing includes an inlet in exhaust gas receiving communication with the plurality of first flow channels of the cross-flow selective catalytic reduction catalyst. The housing includes an outlet in exhaust gas providing communication with the plurality of second flow channels of the cross-flow selective catalytic reduction catalyst. The passive NOx adsorber includes a substrate positioned in the housing. The substrate includes a passive NOx adsorber washcoat.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: March 7, 2023
    Assignee: Cummins Inc.
    Inventors: Lars Krister Henrichsen, Krishna P. Chilumukuru, Michael Haas, Matthew L. Anderson
  • Patent number: 11590473
    Abstract: A catalytic membrane composite that includes porous supported catalyst particles durably enmeshed in a porous fibrillated polymer membrane is provided. The porous fibrillated polymer membrane may be manipulated to take the form of a tube, disc, or diced tape and used in multiphase reaction systems. The supported catalyst particles are composed of at least one finely divided metal catalyst dispersed on a porous support substrate. High catalytic activity is gained by the effective fine dispersion of the finely divided metal catalyst such that the metal catalyst covers the support substrate and/or is interspersed in the pores of the support substrate. In some embodiments, the catalytic membrane composite may be introduced to a stirred tank autoclave reactor system, a continuous flow reactor system, or a Parr Shaker reaction system and used to effect the catalytic reaction.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: February 28, 2023
    Inventors: Gary P. Harp, Jeffrey A. Knopf, Jr., William J. Napier, III
  • Patent number: 11577234
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end, an outlet end with an axial length L; an inlet catalyst layer beginning at the inlet end and extending for less than the axial length L, wherein the inlet catalyst layer comprises an inlet palladium component; an outlet catalyst layer beginning at the outlet end and extending for less than the axial length L, wherein the outlet catalyst layer comprises an outlet rhodium component; and wherein the outlet catalyst layer overlaps with the inlet catalyst layer.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: February 14, 2023
    Assignee: Johnson Matthey (Shanghai) Chemicals Limited
    Inventors: Wenjie Dong, Hongyu Ji, Dongsheng Qiao, Yaping Wan
  • Patent number: 11555433
    Abstract: A reductant injecting device, including: a honeycomb structure including: a pillar shaped honeycomb structure portion having partition wall that defines a plurality of cells each extending from a fluid inflow end face to a fluid outflow end face; and at least one pair of electrode portions arranged on a side surface of the honeycomb structure portion; an outer cylinder having an inlet side end portion and an outlet side end portion, the inlet side end portion comprising a carrier gas introduction port being configured to introduce a carrier gas, the outlet side end portion comprising an injection port being configured to inject ammonia; a urea sprayer arranged at one end of the outer cylinder; and a spray direction switcher configured to be able to switch a spray direction of the aqueous urea solution.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: January 17, 2023
    Assignee: NGK Insulators, Ltd.
    Inventors: Katsumi Saiki, Yukinari Shibagaki
  • Patent number: 11555427
    Abstract: An exhaust-gas burner for an exhaust-gas system of a motor vehicle includes a combustion chamber, which is surrounded by an outer wall, for a channel section in an exhaust-gas system. A dosing unit is provided for the controlled feed of a fuel into the combustion chamber. An ignition unit is provided for the ignition of a combustible mixture in the combustion chamber. A cooling circuit is provided for the exchange of heat with the dosing unit, and is arranged within the outer wall of the exhaust-gas burner.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: January 17, 2023
    Inventors: Uli Sofan, Marcel Noe, Sebastian Hemminger, Rico Fischer
  • Patent number: 11549421
    Abstract: An apparatus for heating an exhaust gas after-treatment unit in a vehicle has, as a drive source, both a combustion engine and an electric motor. The apparatus includes: a honeycomb body configured for exhaust gas to flow therethrough, the honeycomb body having a hollow, through which hollow the exhaust gas flows; and at least one electric heating element arranged in the hollow so as to heat the honeycomb body. The honeycomb body includes a plurality of metal foils stacked one on top of the other, which metal foils form between them a plurality of flow channels, through which a flow can pass along an axial direction, wherein the hollow of the honeycomb body extends in a radial direction, in which the at least one heating element is accommodated.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: January 10, 2023
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventor: Rolf Brück
  • Patent number: 11548784
    Abstract: Provided herein are methods and systems for treating a tail gas of a Claus process to remove sulfur-containing compounds. The method includes combusting a tail gas of a Claus process in an excess of oxygen gas to yield a thermal oxidizer effluent. The thermal oxidizer effluent includes sulfur dioxide, water vapor, and oxygen. The effluent is routed to a quench tower and contacted with a dilute aqueous acid quench stream to yield sulfurous acid, hydrated sulfur dioxide, or both. The sulfurous acid or hydrated sulfur dioxide is oxidized with the excess oxygen from the thermal oxidizer effluent to yield sulfuric acid.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: January 10, 2023
    Assignee: Saudi Arabian Oil Company
    Inventors: Guillaume Robert Jean-Francois Raynel, Sebastien A. Duval, Ghulam Shabbir, Olatunde O. Onasanya
  • Patent number: 11534718
    Abstract: A polygonal substrate assembly includes a polygonal substrate housing, a substrate, and a compressible mat. The compressible mat is positioned about the substrate and the substrate is press-fit within the polygonal substrate housing with the compressible mat. The polygonal substrate housing may include a sidewall having a concave portion. The polygonal substrate housing may include a substrate installation portion that flares out from a main sidewall at an end of the polygonal substrate housing. The polygonal substrate housing may be formed from a plurality of substrate housing components welded together. The polygonal substrate housing can include one or more stiffening ribs. Several polygonal substrate assemblies may be combined and coupled together to form an array in various geometric configurations.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: December 27, 2022
    Assignee: Cummins Emission Solutions Inc.
    Inventors: George E. Mavroudis, Taren Dehart, Daniel W. Woods, Ryan M. Johnson, Colin L. Norris, Randolph G. Zoran
  • Patent number: 11492946
    Abstract: An aftertreatment system (100) connected downstream an internal combustion engine arrangement (102) for receiving combustion gas exhausted from the internal combustion engine arrangement (102) during operation thereof, the aftertreatment system (100) comprising a primary aftertreatment system (104) comprising a first catalytic reduction arrangement (106); a secondary reduction system (108) comprising a second catalytic reduction arrangement (110).
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: November 8, 2022
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Lennart Andersson, Soran Shwan, Mathias Magnussson
  • Patent number: 11473483
    Abstract: A replacement kit for use with a motor vehicle that was originally equipped with an exhaust system including an exhaust manifold and a catalytic converter welded thereto. The replacement kit includes a replacement catalytic converter arranged for use during use of the motor vehicle on public roads. Rather than welding, the replacement catalytic converter attaches to the exhaust manifold using a clamp to form a gas-tight seal. The clamp is arranged to move from the closed position to an open position to enable disengagement of the replacement catalytic converter from the exhaust manifold and substitution of a bypass pipe in place of the replacement catalytic converter to increase performance characteristics of the vehicle during off-road use.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: October 18, 2022
    Assignee: Fabspeed.com, Inc.
    Inventor: Joseph Fabiani
  • Patent number: 11473472
    Abstract: An exhaust gas control apparatus includes a honeycomb substrate and an inlet cell-side catalyst layer. The honeycomb substrate includes a porous partition wall that defines a plurality of cells extending from an inlet-side end face to an outlet-side end face. The cells include an inlet cell and an outlet cell that are adjacent to each other with the partition wall therebetween. The inlet cell is open at its inlet-side end and is sealed at its outlet-side end. The outlet cell is sealed at its inlet-side end and is open at its outlet-side end. The inlet cell-side catalyst layer is provided on a surface on the inlet cell side of the partition wall and extends from an inlet-side end of the partition wall. Porosity of the inlet cell-side catalyst layer is in a specific range.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: October 18, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Koji Sugiura, Hiromasa Nishioka, Naoto Miyoshi, Akemi Satou, Keisuke Murawaki, Masatoshi Ikebe, Takaya Ota, Ryota Nakashima, Hirotaka Ori
  • Patent number: 11473201
    Abstract: A method is disclosed for treating an anodized metal surface. According to the method, polynuclear clusters comprising aluminum oxide hydroxide are applied to the anodized metal surface.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: October 18, 2022
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Susanne M. Opalka, Weina Li, Joseph J. Sangiovanni, Mark R. Jaworowski, Georgios S. Zafiris, Weilong Zhang, Zhongfen Ding
  • Patent number: 11465114
    Abstract: The present specification discloses a membrane reactor comprising a reaction region; a permeate region; and a composite membrane disposed at a boundary of the reaction region and the permeate region, wherein the reaction region comprises a bed filled with a catalyst for dehydrogenation reaction, wherein the composite membrane comprises a support layer including a metal with a body-centered-cubic (BCC) crystal structure, and a catalyst layer including a palladium (Pd) or a palladium alloy formed onto the support layer, wherein ammonia (NH3) is supplied to the reaction region, the ammonia is converted into hydrogen (H2) by the dehydrogenation reaction in the presence of the catalyst for dehydrogenation reaction, and the hydrogen permeates the composite membrane and is emitted from the membrane reactor through the permeate region.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: October 11, 2022
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Young Suk Jo, Chang Won Yoon, Hyuntae Sohn, Hyangsoo Jeong, Seong Cheol Jang, Yeong Cheon Kim, Jonghee Han, Suk Woo Nam
  • Patent number: 11454150
    Abstract: A thermal shock resistant and asymmetric honeycomb ceramic wall-flow filter includes an inlet honeycomb ceramic surface and an outlet honeycomb ceramic surface. Inlet channels and outlet channels are provided on both the inlet honeycomb ceramic surface and the outlet honeycomb ceramic surface. The inlet channels are in communication with the outlet channels. Outlet ends of the inlet channels and inlet ends of the outlet channels are sealed. An inner diameter of the inlet channel is greater than that of the outlet channel. A cross-section of the inlet channel is a square, or two adjacent edges are connected by two connecting lines, or two adjacent edges are connected by two connecting lines or a circular arc located between the two connecting lines. The filter has good mechanical properties, low back pressure, and excellent thermal shock resistance.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: September 27, 2022
    Assignee: SHANDONG SINOCERA FUNCTIONAL MATERIAL CO., LTD
    Inventors: Xibin Song, Bing Zhang, Xi Zhang
  • Patent number: 11439996
    Abstract: A method for producing a three-dimensional porous catalyst monolith of stacked catalyst fibers, comprising the following steps: a) Preparing a suspension paste in a liquid diluent of metal, metal alloy and/or metal oxide particles of catalytically active metal or metal alloy in which the metals, metal alloy and metal oxide particles can be supported on or mixed with inorganic oxide catalyst support particles, and which suspension can furthermore comprise a binder material, all particles in the suspension having an average particle size in the range of from 0.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: September 13, 2022
    Assignee: BASF SE
    Inventors: Esther Groeneveld, Peter Berben, Bernard Reesink
  • Patent number: 11439987
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end, an outlet end with an axial length L; a first catalytic region beginning at the inlet end and extending for less than the axial length L, wherein the first catalytic region comprises a first palladium component; a second catalytic region beginning at the outlet end and extending for less than the axial length L, wherein the second catalytic region comprises a second palladium component; a third catalytic region beginning at the outlet end and extending for less than the axial length L, wherein the third catalytic region comprises a third rhodium component; and wherein the third catalytic region overlies the second catalytic region.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: September 13, 2022
    Assignee: Johonson Matthey (Shanghai) Chemicals Co., Ltd
    Inventors: Hongyu Ji, Dongsheng Qiao, Xiang Zheng
  • Patent number: 11439995
    Abstract: A three-dimensionally structured porous catalyst monolith of stacked catalyst fibers with a fiber diameter of less than 1 mm made from one or more continuous fibers or stacked individual fibers, wherein the stacked catalyst fibers are arranged in a regular, recurring stacking pattern of fiber layers to form the three-dimensionally structured monolith, and wherein in each of the stacked fiber layers at least 50 wt % of the fibers are arranged parallel to each other and spatially separated from each other, or in a cobweb pattern, and wherein the side crushing strength of the monolith is at least 60 N.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: September 13, 2022
    Assignee: BASF SE
    Inventors: Esther Groeneveld, Peter Berben, Bernard Reesink, Bart Michielsen, Jasper Lefevere
  • Patent number: 11439934
    Abstract: Disclosed are a capture device for purifying air, a purification device, and an air purifier. The capture device for purifying air includes: a housing and a capture assembly. The housing is provided with an air inlet and an air outlet, wherein a cavity, in communication with the air inlet and the air outlet, is defined inside the housing; and the capture assembly is arranged in the cavity, and is located between the air inlet and the air outlet. The capture assembly includes a first rotating disk, a second rotating disk and a cylinder, wherein both the first rotating disk and the second rotating disk are rotatable and rotate in opposite directions; and the cylinder is disposed between the first rotating disk and the second rotating disk.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: September 13, 2022
    Assignees: GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD., MIDEA GROUP CO. LTD.
    Inventors: Yunqing Han, Chubin Ou, Tongsheng Wang, Hui Zhang
  • Patent number: 11441458
    Abstract: Gasoline Direct Injection (GDI) engines require gasoline particulate filters (GPFs) as a key component of the emissions control system to reduce particulate emissions. GPFs are known to have poor initial performance, with performance increasing after the filter develops a cake. This poor initial performance make it impossible to accurately assess vehicle emissions performance at the mileage requirements for vehicle certification. Compositions and methods are disclosed to improve filtration efficiency in a fresh or low mileage GPF.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: September 13, 2022
    Assignee: Afton Chemical Corporation
    Inventors: Huifang Shao, Joseph W. Roos, Joseph E. Remias
  • Patent number: 11420158
    Abstract: Process and apparatus are disclosed for capturing and converting an ozone-depleting alkyl halide fumigant from a fumigant/air mixed stream (14) by absorbing it into a metal hydroxide-alcohol buffer solution (26) in an absorber/scrubber (12) to produce a fumigant-free air stream. The captured alkyl halide in aqueous alcohol solution can actively react with the metal hydroxide in alcohol solution to produce a value-added product, such as a precipitate metal halide, and another alcohol that further enhances absorption. The absorbing solution is well-mixed with make-up alcohol and alkali streams to maintain the concentration of the metal hydroxide in the desired buffer solution range. The solid precipitate metal halide is separated from the liquid stream, and the metal hydroxide-containing mixed alcohol stream is recycled to the absorber/scrubber (12).
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: August 23, 2022
    Assignee: The Trustees of the Stevens Institute of Technology
    Inventors: Adeniyi Lawal, Lin Zhou
  • Patent number: 11415039
    Abstract: There is provided a structure including: a substrate including a first and a second ends, and a porous partition wall defining a first and a second cells extending between the first and the second ends; a first catalyst; and a second catalyst. In a first area, the first catalyst is disposed on a first surface of the partition wall, and the partition wall with the first catalyst disposed on the partition wall is impermeable to gas. In a second area, the first catalyst is not provided, the second catalyst is disposed in a region including at least a part inside the partition wall, the part facing the first cell, and the partition wall with the second catalyst disposed in the partition wall is permeable to gas. In a third area, any of the first catalyst or the second catalyst is not provided, and the partition wall is permeable to gas.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: August 16, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Koji Sugiura, Hiromasa Nishioka, Naoto Miyoshi, Akemi Sato, Masatoshi Ikebe, Ryota Nakashima, Yasutaka Nomura
  • Patent number: 11408318
    Abstract: An exhaust gas purification device is disclosed provided with a denitration catalyst for reducing and removing nitrogen oxides in exhaust gas using ammonia as a reducing agent in a gas flow passage through which the exhaust gas discharged from a boiler flows, and which injects ammonia into the exhaust gas flowing through the gas flow passage on an upstream side of the denitration catalyst, including multiple disturbing plate support members, and a disturbing plate. The multiple disturbing plate support members are fixedly provided on a downstream side of the denitration catalyst and arranged extending linearly in a flow path cross section to cross the gas flow passage. The disturbing plate includes an exhaust gas flow facing surface exposed on an upstream side and is fixed to the disturbing plate support members so that a position thereof in the flow path cross section can be changed.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: August 9, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hiroyuki Yoshimura, Katsumi Yano, Katsuhiro Yashiro, Akihiro Yamada, Satoru Shishido, Hironori Kishi
  • Patent number: 11400441
    Abstract: A honeycomb filter includes a pillar-shaped honeycomb structure having porous partition walls provided, surrounding a plurality of cells which serve as fluid through channels extending from an inflow end face to an outflow end face, and porous plugging portions provided either at the ends on the inflow end face or the outflow end face of the cells, wherein the plugging portions are composed of a porous material, the honeycomb structure has a central region and a circumferential region, and a ratio of an area of the circumferential region with respect to that of the central region ranges from 0.1 to 0.5, a plugging length L1 in the cell extending direction of a central plugging portion in the central region is larger than a plugging length L2 of a circumferential plugging portion in the circumferential region, L1 ranges from 7 to 9 mm, and L2 from 3 to 6 mm.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: August 2, 2022
    Assignee: NGK Insulators, Ltd.
    Inventor: Fumihiko Yoshioka