Amine Patents (Class 423/228)
  • Patent number: 12012833
    Abstract: In a system for producing power and capturing carbon dioxide (CO2) at an offshore site, separator units separate a fluid produced from an offshore vessel in fluid communication with a reservoir into water, oil, and gas. The gas is sent to oxy-firing gas turbine generator units. Air separation units separate an air into nitrogen and oxygen. The oxygen is sent to the oxy-firing gas turbine generator units. Gas compression units compress an exhaust gas from the oxy-firing gas turbine generator units. Dehydration units dehydrate the compressed exhaust gas, and a portion of the dehydrated compressed exhaust gas is recycled back to the oxy-firing gas turbine generator units. Gas pumps inject a remaining portion of the dehydrated compressed exhaust gas into the reservoir. Additionally, the oxy-firing gas turbine generator units generates electricity with the oxygen, the gas, and the portion of the dehydrated compressed exhaust gas.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: June 18, 2024
    Assignee: Exmar Offshore Company
    Inventors: Martin B. Mick, Chirag Parmar
  • Patent number: 11952547
    Abstract: A selective desulfurization method implemented based on a high gravity reactor is provided, in the technical field of desulfurization separation. The selective desulfurization method includes the following steps: driving the packed bed to rotate through the driving device; introducing feed gas containing hydrogen sulfide into the reactor through the air inlet, and enabling the feed gas to enter the packed bed and move along a direction from a outer packing area of multiple areas to an inner packing area of the multiple of packing areas; introducing a desulfurizer into the packed bed through the liquid inlet, and enabling the desulfurizer to move along a direction from the inner packing area to the outer packing area under an action of centrifugal force. Deflectors can change the flow direction of the desulfurizer liquid after passing through the inner packing area.
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: April 9, 2024
    Assignee: University of Chinese Academy of Sciences
    Inventors: Zhi Qian, Shao Wu
  • Patent number: 11883793
    Abstract: A porous sorbent ceramic product includes a three-dimensional structure having an electrically conductive ceramic material, wherein the conductive ceramic material has an open cell structure with a plurality of intra-material pores, a sorbent additive primarily present in the intra-material pores of the conductive ceramic material for adsorption of a gas, and at least two electrodes in electrical communication with the conductive ceramic material.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: January 30, 2024
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Nathan C. Ellebracht, Sarah E. Baker, Eric B. Duoss, Simon Hoching Pang, Joshuah K. Stolaroff
  • Patent number: 11845721
    Abstract: A method for separating CO2 from C2 to C5 alkanes includes introducing a first stream including C2 to C5 alkanes and CO2 into a first separation zone, the first separation zone including a hydrocarbon solvent, and separating the first stream into a recycle stream and a second stream in the first separation zone. The recycle stream including CO2 and one or more of CO, H2, and CH4, and the second stream including C2 to C5 alkanes. The method further includes introducing the second stream into a second separation zone, and separating the second stream into a third stream and a fourth stream, wherein the third stream includes C2 alkanes and the fourth stream includes C3 to C5 alkanes.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: December 19, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Barry Brent Fish, Peter E. Groenendijk, Andrzej Malek, Davy L. S. Nieskens, Brien A. Stears
  • Patent number: 11603322
    Abstract: An alkaline aqueous ferric iron salt solution is disclosed. Generally, the alkaline aqueous ferric iron salt solution comprises ferric ions (Fe3+), potassium ions (K+), carbonate ions (CO32?), bicarbonate ions (HCO3?), hydroxide ions (OH?), optionally nitrate ions (NO3?). Further, a molar ratio of the potassium ions to the ferric ions is generally at least 5.0. The ferric iron is complexed with carbonate, bicarbonate or both to form a water-soluble complex that is anionic in nature and highly soluble in the alkaline aqueous ferric iron salt solution at pH above 8.5, and a pH of the alkaline aqueous ferric iron salt solution is at least 8.5.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: March 14, 2023
    Inventors: Charles Deane Little, Yasmina Yeager
  • Patent number: 11471821
    Abstract: The present invention relates to a biomimetic-hybrid solvent system for simultaneous capture of H2S and CO2 from any gaseous composition. The present invention also relates to a process for upgradation of biogas to bio CNG by removing gaseous contaminants, including microbial removal of H2S, to obtained purified CO2. The biomimetic-hybrid solvent system contains three components selected from tertiary amine compounds, a functional colloidal fluid, and an enzyme mimic.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: October 18, 2022
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Prakash Chandra Sahoo, Manoj Kumar, Suresh Kumar Puri, Sankara Sri Venkata Ramakumar
  • Patent number: 11433351
    Abstract: A system and method for recovering carbon dioxide from a stream of gas using an absorption unit configured to receive the stream of gas and a stream of liquid absorbent. The gas includes carbon dioxide and vaporized water, and the liquid absorbent is chemically reactive with the carbon dioxide to form a solidified carbon dioxide-rich absorbent material. The gas and the liquid absorbent are mixed in the absorption unit such that a slurry that includes the solidified carbon dioxide-rich absorbent material and condensed water is formed therein. The system and method may also employ a transport mechanism coupled in communication with the absorption unit, wherein the transport mechanism is configured to channel the slurry downstream from the absorption unit.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: September 6, 2022
    Assignee: BAKER HUGHES COMPANY
    Inventors: Tiffany Elizabeth Pinard Westendorf, Paul Russell Wilson, Rachel Lizabeth Farnum
  • Patent number: 11383197
    Abstract: Disclosed is a process comprising: step a) contacting a feed stream comprising a contaminant with an absorbent stream in a counter-current flow to produce a contaminant depleted product stream depleted in the molar quantity of the contaminant relative to the molar quantity of said contaminant in the feed stream, and a contaminant enriched absorbent stream enriched in the molar quantity of the contaminant relative to the molar quantity of said contaminant in the absorbent stream; and step b) treating the contaminant enriched absorbent stream to form a gaseous stream comprising said contaminant and a regenerated absorbent stream lean in the molar quantity of said contaminant relative to the molar quantity of said contaminant in the contaminant enriched absorbent stream; herein said absorbent stream comprises at least 15 wt. % of at least one compound (A) of general formula (I) or a mixture (M) comprising at least one compound (B) of general formula (II) and at least one compound (C) of general formula (III).
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: July 12, 2022
    Assignee: Taminco BVBA
    Inventors: Stijn Simonne Paul Van de Vyver, Robin Jacques Matton, Klaas Victor
  • Patent number: 11377403
    Abstract: A method for separating CO2 from C2 to C5 alkanes includes introducing a first stream including C2 to C5 alkanes and CO2 into a first separation zone, the first separation zone including a hydrocarbon solvent, and separating the first stream into a recycle stream and a second stream in the first separation zone. The recycle stream including CO2 and one or more of CO, H2, and CH4, and the second stream including C2 to C5 alkanes. The method further includes introducing the second stream into a second separation zone, and separating the second stream into a third stream and a fourth stream, wherein the third stream includes C2 alkanes and the fourth stream includes C3 to C5 alkanes.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: July 5, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Barry Brent Fish, Peter E. Groenendijk, Andrzej Malek, Davy L. S. Nieskens, Brien A. Stears
  • Patent number: 11266947
    Abstract: Disclosed herein is a method and system for CO2 removal from a gas stream using a diamine solvent having a Formula I R1(R2)N-L1-NH-R3 ??(I) With respect to Formula I, each of R1 and R2 independently is aliphatic, cycloaliphatic, or R1 and R2 together with the nitrogen to which they are attached, form a heterocyclyl ring; L1 is aliphatic, cycloaliphatic, or L1 and R1 together with the nitrogen to which they are attached form a heterocyclyl ring; and R3 is aliphatic, cycloaliphatic, cycloalkylalkyl, or alkoxyalkyl. And/or the compound may have a viscosity of less than 75 cP at a CO2-loading of 40 mol % and at a temperature of 40° C.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: March 8, 2022
    Assignee: Battelle Memorial Institute
    Inventors: Deepika Malhotra, Phillip K. Koech, David J. Heldebrant, Vassiliki-Alexandra Glezakou, Roger J. Rousseau, Manh Thuong Nguyen, Robert Perry, Jordan P. Page, David C. Cantu
  • Patent number: 11253812
    Abstract: The present invention relates to an apparatus and method for recovering carbon dioxide (hereinafter also referred to as “CO2”) contained in a combustion exhaust gas, and more specifically relates to: an apparatus and method for reactively absorbing CO2 contained in a combustion exhaust gas into an amine compound-containing absorption liquid; an apparatus and method for desorbing CO2 contained in an amine compound-containing absorption liquid from the amine compound-containing absorption liquid; an apparatus and method for evaporating and separating impurities from the amine compound-containing absorption liquid containing the impurities; an apparatus and method for performing a pretreatment such as desulfurization, dust removal, and cooling on a combustion exhaust gas; and a carbon dioxide-recovering apparatus and method utilizing the above apparatuses and methods.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: February 22, 2022
    Assignees: ANEMOS COMPANY LTD.
    Inventors: Terutoshi Suzuki, Hisao Kojima, Teruhiko Suzuki, Shinji Kojima
  • Patent number: 11235306
    Abstract: Crosslinked polymers made up of polymerized units of phenothiazine, pyrrole, and aldehyde. The crosslinked polymers are porous with a BET surface area in the range of 300-600 m2/g. A method of synthesizing the crosslinked polymers is described. Processes for using the crosslinked polymers as adsorbent materials for adsorbing gases (e.g. CO2 capturing), and separating fluid mixtures under dry and wet conditions are also introduced.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: February 1, 2022
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Othman Charles Sadeq Al Hamouz, Mahmoud Mohamed Abdelnaby
  • Patent number: 11173446
    Abstract: In a process for removal of acid gases from a fluid stream the fluid stream is contacted with an absorbent to obtain a treated fluid stream and a laden absorbent. The absorbent comprises a diluent and a compound of the general formula (I) wherein R1 is C1-C3-alkyl; R2 is C1-C3-alkyl; R3 is selected from hydrogen and C1-C3-alkyl; and R4 is selected from hydrogen and C1-C3-alkyl.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: November 16, 2021
    Assignees: BASF SE, ExxonMobil Research and Engineering Company
    Inventors: Thomas Ingram, Martin Ernst, Gerald Vorberg, Alexander Panchenko, Sophia Ebert, Thomas Wesley Holcombe, Michael Siskin, Carla Pereira, Georg Sieder
  • Patent number: 11167236
    Abstract: A carbon dioxide capture system, fluid contactor and method are disclosed. In embodiments, a gas-liquid contactor unit is disposed along a process fluid flow axis and includes a contactor network of flow diversion barriers with flow voids for movement of process fluids therebetween. A plurality of heat exchange channels are provided in the flow diversion barriers to transport a heat exchange fluid through the contactor network. A heat exchange feed channel is provided to deliver feed of the heat exchange fluid to the heat exchange channels at multiple feed locations spaced along the flow axis. At least one heat exchange bypass channel may extend beyond the multiple feed locations to deliver a portion of the feed of the heat exchange fluid to additional heat exchange channels located downstream from the multiple feed locations for the heat exchange channels.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: November 9, 2021
    Assignee: ION Clean Energy, Inc.
    Inventors: Charles Panaccione, Erik Everhardus Bernardus Meuleman, Gregory Allan Staab, Nathan R. Brown
  • Patent number: 11135543
    Abstract: A reduction device, an acid gas recovery device, a recovery device collector, and a first removed substance returning line are provided. The reduction device is configured to perform a reduction process to turn iron oxide to reduced iron by adding a reducing agent. The acid gas recovery device is configured to recover CO2 being acid gas with CO2 absorbing liquid being acid gas absorbing liquid from exhaust gas containing at least powder-shaped iron-based solid substances and the acid gas, which are discharged from the reduction device. The recovery device collector is configured to collect the iron-based solid substance contained in the absorbing liquid with a filter. The iron-based solid substances collected by the recovery device collector are removed, and removed substances containing the removed iron-based solid substances are returned to the reduction device side through the first removed substance returning line.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: October 5, 2021
    Assignee: Mitsubishi Heavy Industries Engineering, Ltd.
    Inventors: Takuya Hirata, Hiroshi Tanaka, Takashi Kamijo, Masayuki Inui, Shimpei Kawasaki
  • Patent number: 11123686
    Abstract: An environmental control system includes an air conditioning subsystem; a mix manifold downstream of the air conditioning subsystem and upstream of an environment to be conditioned; and a contaminant removal subsystem downstream of the environment to be conditioned. The contaminant removal subsystem includes a first gas-liquid contactor-separator. The first gas-liquid contactor-separator includes a first packed, stationary bed that provides a heat/mass transfer surface for contact between a contaminated air from the environment and a liquid absorbent.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: September 21, 2021
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Phoebe Henson, Stephen Yates, Dacong Weng, Alexander Bershitsky, Ted Bonk
  • Patent number: 11090603
    Abstract: An acidic gas absorbent contains an amine compound of formula (1) and a cyclic amino compound of formula (2) or (3): where in the formulas, each R1 is independently a straight-chain hydroxyalkyl having a hydroxy at the terminal, R2 is a branched-chain secondary alkyl group, R3 and R4 are hydrogen, hydroxy, a hydroxyalkyl or aminoalkyl, provided that at least one of R3 and R4s is a hydroxyalkyl or aminoalkyl, each p is independently an integer of 2 to 4, each R5 is independently hydrogen, hydroxy, or a hydroxyalkyl or aminoalkyl, provided that at least one of R5s is a hydroxyalkyl or aminoalkyl, and q is an integer of 3 to 8.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: August 17, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Shinji Murai, Yasuhiro Kato, Akiko Suzuki, Mitsuru Udatsu
  • Patent number: 10975217
    Abstract: Silica-based organogels, including aerogels, incorporating hexahydrotriazine and/or hemiaminal species are described. These organo-silica gel materials can have applications as insulating materials. In a particular example, an aerogel includes silica groups and a hexahydrotriazine moiety with at least one nitrogen atom that is covalently linked to a silica group. Methods of making such silica-based organogels are also described.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: April 13, 2021
    Assignee: International Business Machines Corporation
    Inventors: Dylan J. Boday, Jeannette M. Garcia, James L. Hedrick, Jason T. Wertz, Rudy J. Wojtecki
  • Patent number: 10967325
    Abstract: The invention relates to an absorbent solution and to a method using this solution for removing acid compounds contained in a gaseous effluent, comprising water and at least one diamine with general formula (I) as follows: wherein: radicals R1, R2, R3 are each selected indiscriminately among a methyl radical and a hydroxyethyl radical, and at least one radical among R1, R2, R3 is a methyl radical.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: April 6, 2021
    Assignee: IFP Energies nouvelles
    Inventors: Bruno Delfort, Julien Grandjean, Thierry Huard, Laetitia Giraudon, Catherine Lefebvre, Aurelie Wender, Armelle Nigon
  • Patent number: 10953362
    Abstract: Disclosed is an apparatus for separating amine gas from mixed gas, the apparatus including: a washer column through which mixed the gas passes; and a main adsorber column through which the mixed gas passing through the washer column passes. According to the present invention, the apparatus can remove amine gas more effectively and increase the lifetime of an adsorbent by allowing the mixed gas including the amine gas to pass through the washer column and the adsorber column.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: March 23, 2021
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Yeo-Il Yoon, Il-Su Chun, Soung Hee Yun, Jeong Ho Choi, Jin Young Jung
  • Patent number: 10953361
    Abstract: A CO2 recovery device includes an advanced desulfurization-cooling column that removes sulfur oxides in an exhaust gas and reduces a temperature of the exhaust gas; a CO2 absorption column that removes CO2 in the exhaust gas by bringing the CO2 into contact with a CO2 absorption liquid; and a regeneration column that recovers the CO2 by causing the CO2 absorption liquid to release the CO2 while regenerating the CO2 absorption liquid, and feeds the regenerated CO2 absorption liquid to the CO2 absorption column, where the advanced desulfurization-cooling column includes a circulating line that supplies and circulates a desulfurization-cooling circulation liquid used in order to conduct desulfurization and cooling from a lower part to an upper part of the advanced desulfurization-cooling column, a deep SOx recovery packed bed, and a first cooler that cools the circulation liquid.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: March 23, 2021
    Assignee: Mitsubishi Heavy Industries Engineering, Ltd.
    Inventors: Hiroshi Tanaka, Takuya Hirata, Takashi Kamijo, Tatsuya Tsujiuchi
  • Patent number: 10857502
    Abstract: An absorbent liquid which absorbs at least one of CO2 and H2S from a gas, including a secondary linear monoamine; a tertiary linear monoamine or a sterically hindered primary monoamine; and a secondary cyclic diamine, wherein a concentration of each of the secondary linear monoamine, the tertiary linear monoamine or the sterically hindered primary monoamine; and the secondary cyclic diamine is less than 30% by weight.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: December 8, 2020
    Assignees: Mitsubishi Heavy Industries Engineering, Ltd., The Kansai Electric Power Co., Inc.
    Inventors: Hiroshi Tanaka, Takuya Hirata, Masami Kondo, Takashi Kamijo, Tatsuya Tsujiuchi
  • Patent number: 10850225
    Abstract: Process for retrofitting existing processing units for natural gas fee streams. A portion of the dehydration adsorbent is removed from the vessels of the dehydration unit and is replaced with an adsorbent for heavy hydrocarbons. In operation the vessels are operated in thermal swing adsorption processes with reduced cycle times compared to the original design.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: December 1, 2020
    Assignee: UOP LLC
    Inventors: Bhargav Sharma, Nagaraju Palla, Trevor Smith, Shain-Jer Doong
  • Patent number: 10821397
    Abstract: The present invention is related a square packed tower for collection of flue gas CO2. The square packed tower comprises an initial absorbent distributor on the lower end of the flue gas outlet, a vertical plate packer on the lower end of the initial absorbent distributor and a radial diversion gas distributor at the bottom of the square packed tower for delivery of carbon dioxide contained in the flue gas. The radial diversion gas distributor comprises a gas inlet pipe, a butterfly base plate, a butterfly seal plate and numerous radial deflectors. The butterfly base plate is connected with outlet of the gas inlet pipe. The radial deflectors are in radial arrangement between the butterfly base plate and butterfly seal plate along the outlet of gas inlet pipe.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: November 3, 2020
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Tao Wang, Mengxiang Fang, Wenfeng Dong, Qinhui Wang, Jianmeng Cen, Leming Cheng, Gang Xiao, Chenghang Zheng, Jinsong Zhou, Shurong Wang, Xiang Gao, Zhongyang Luo, Mingjiang Ni, Kefa Cen
  • Patent number: 10774040
    Abstract: Processes for removing carbon disulfide from product streams containing a sulfide compound are performed by contacting the product stream with an alkanolamine and converting the carbon disulfide to a higher boiling point product, thereby reducing or eliminating carbon disulfide from the product stream. Subsequent removal of the higher boiling point product via distillation can lead to a purified sulfide stream with high purity.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: September 15, 2020
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Kenneth M. Lassen, Michael S. Matson, Daniel M. Hasenberg, Dave Schwierman
  • Patent number: 10765988
    Abstract: A gas conversion apparatus (100) for converting a process gas to one or more other gases comprises: means (105) for introducing process gas into a liquid medium in a column (125); and an ultrasonic energy generator (140) arranged to generate ultrasonic energy, the apparatus (100) being configured to launch ultrasonic energy generated by the generator (140) into the liquid medium such that process gas is exposed to ultrasonic energy, the apparatus (100) being arranged to allow collection of process gas that has been exposed to ultrasonic energy. The apparatus (100) also preferably comprises a microbubble generator (120) to generate microbubbles of the process gas for exposure to the ultrasonic energy. The ultrasonic energy generator (140) may be configured to generate ultrasonic energy as a consequence of a flow of a drive gas therethrough.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: September 8, 2020
    Assignee: Coldharbour Marine Limited
    Inventors: Mark Wells, Andrew Marshall, Peter James Dobson
  • Patent number: 10717038
    Abstract: Disclosed is an absorbing liquid for separating and capturing carbon dioxide from a carbon dioxide-containing gas, the absorbing liquid containing: at least one alkanolamine represented by formula (1) wherein R1 represents hydrogen or C1-4 alkyl, R2 and R3 are identical or different and each represent hydrogen or C1-3 alkyl, R1, R2, and R3 are not all hydrogen, and n is 1 or 2; a low-molecular-weight diol compound and/or glycerin; and water.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: July 21, 2020
    Assignees: RESEARCH INSTITUTE OF INNOVATIVE TECHNOLOGY FOR THE EARTH, NIPPON STEEL CORPORATION
    Inventors: Firoz Alam Chowdhury, Tsuguhiro Kato, Yoichi Matsuzaki, Masami Onoda
  • Patent number: 10688435
    Abstract: An environmental control system includes an air conditioning subsystem and a contaminant removal subsystem downstream of the environment to be conditioned. The contaminant removal subsystem includes a first gas-liquid contactor-separator, a second gas-liquid contactor-separator, and a third gas-liquid contactor-separator. One of the first, the second, and the third gas-liquid contactor-separators is configured to receive used absorbent liquid having at least a first contaminant and discharge at least a first contaminant for recovery and reuse. Another of the first, the second and the third gas-liquid contactor-separators is configured to receive used absorbent liquid having at least a second contaminant and discharge at least the second contaminant for recovery and reuse.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: June 23, 2020
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Phoebe Henson, Stephen Yates, Jun Isobe, Rebecca Kamire
  • Patent number: 10662061
    Abstract: Embodiments of the disclosure provide a method and a Claus tail gas treatment system for sulfur recovery. A tail gas stream is fed to a hydrogenation reactor to produce a hydrogenated gas stream by converting sulfur-containing compounds to hydrogen sulfide. The hydrogenated gas stream is fed to a quench tower to produce a quenched gas stream by condensing and recovering liquid water via a water condensate stream. The quenched gas stream is fed to a first stage adsorption unit to produce a first outlet gas stream by separating water via a first byproduct stream from hydrogen sulfide, carbon dioxide, and nitrogen. The first outlet stream is fed to a second stage adsorption unit to produce a second outlet gas stream by separating carbon dioxide and nitrogen via a second byproduct stream. The second outlet stream includes hydrogen sulfide. The second outlet stream can be fed to a Claus unit.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: May 26, 2020
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Georgios Lithoxoos, Yuguo Wang, Rashid Othman
  • Patent number: 10639584
    Abstract: A system for carbon dioxide capture from a gas mixture comprises a lean solvent comprising 3-amino-1-propanol (AP), 2-dimethylamino-2-methyl-1-propanol (DMAMP), and water; an absorber containing at least a portion of the lean solvent, wherein the absorber is configured to receive the lean solvent and a gaseous stream comprising carbon dioxide, contact the lean solvent with the gaseous stream, and produce a rich solvent stream and a gaseous stream depleted in carbon dioxide; a stripper, wherein the stripper is configured to receive the rich solvent stream; a cross-exchanger fluidly coupled to a rich solvent outlet on the absorber and a rich solvent inlet on the stripper; a reboiler fluidly coupled to a lower portion of the stripper; and a condenser fluidly coupled to a vapor outlet of the stripper.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: May 5, 2020
    Assignee: Fluor Technologies Corporation
    Inventors: Paul M. Mathias, Satish Reddy, Joseph Yonkoski
  • Patent number: 10625200
    Abstract: A carbon dioxide absorbent of an embodiment includes a chain amine, a cyclic amine, and an acid. The chain amine is a compound expressed by Formula (1) of FIG. 1. R1 in Formula (1) is hydrogen or an alkyl chain having at least one hydroxyl group and 1 to 7 carbon atoms. R2 in Formula (1) is an alkyl chain having at least one hydroxyl group and 1 to 7 carbon atoms. R3 in Formula (1) is hydrogen, a straight alkyl chain having 1 to 7 carbon atoms, a branched alkyl chain having 1 to 7 carbon atoms, or a cyclic alkyl chain having 5 to 7 carbon atoms.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: April 21, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akiko Suzuki, Asato Kondo, Takashi Kuboki, Shinji Murai, Mitsuru Udatsu
  • Patent number: 10610820
    Abstract: Provided are: a wet desulfurization apparatus 13 which removes sulfur oxides in flue gas 12A from a boiler 11; a mist collection/agglomeration apparatus 14 which is provided on a downstream side of the desulfurization apparatus 13 and forms agglomerated SO3 mist by causing particles of SO3 mist contained in flue gas 12B from the wet desulfurization apparatus 13 to be bonded together and have bloated particle sizes; a CO2 recovery apparatus 18 constituted by a CO2 absorption tower 16 having a CO2 absorption unit 16A which removes CO2 contained in flue gas 12D by being brought into contact with a CO2 absorbent and an absorbent regeneration tower 17 which recovers CO2 by releasing CO2 from the CO2 absorbent having absorbed CO2 and regenerates the CO2 absorbent; and a mist collection unit 16C which collects CO2 absorbent bloated mist bloated by the CO2 absorbent being absorbed by the agglomerated SO3 mist in the CO2 absorption unit 16A.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: April 7, 2020
    Assignees: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD., MITSUBISHI HITACHI POWER SYSTEMS ENVIRONMENTAL SOLUTIONS, LTD.
    Inventors: Takuya Hirata, Hiromitsu Nagayasu, Yasutoshi Ueda, Tomoki Noborisato, Takao Tanaka, Masaya Kato
  • Patent number: 10550309
    Abstract: Systems, compositions, and methods for synergistic additives for use in the scavenging of sulfur-containing compounds encountered in oilfield operations are provided. In one embodiment, the methods comprise injecting a sulfide scavenging additive that does not comprise a significant amount of an aldehyde into at least a portion of a subterranean formation where one or more sulfur-containing species are present; and injecting a synergistic additive comprising at least one base into at least the portion of the subterranean formation.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: February 4, 2020
    Assignee: Multi-Chem Group, LLC
    Inventors: Liu Shi, Funian Zhao, Liangwei Qu, Edward Corrin
  • Patent number: 10537851
    Abstract: A method and apparatus to capture carbon dioxide from combustion products in a flue gas, using replenishable anhydrous metal hydroxides, and capturing heat from an exothermic reaction of the carbon dioxide with the anhydrous metal hydroxides re-use in another heat using system.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: January 21, 2020
    Inventor: Jaeson Cardiff
  • Patent number: 10532317
    Abstract: Corrosion in a CO2 removal system is reduced or even entirely avoided by use of a metal ion chelator unit that removes metal ions, and especially iron ions from an amine solvent to a level of equal or less than 1 mg/l without substantially binding heat stable salts.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: January 14, 2020
    Assignee: Fluor Technologies Corporation
    Inventors: Satish Reddy, Joseph Yonkoski
  • Patent number: 10507927
    Abstract: An environmental control system (ECS) includes an air conditioning pack that receives outside air; a regenerative treatment subsystem, wherein the treatment subsystem includes a treatment bed configured to cycle between an adsorption phase and a desorption phase; and a fan that receives recirculated air from the environment and moves the recirculated air to a mixing manifold.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: December 17, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Jan Ludvik, Peter M. Michalakos
  • Patent number: 10494270
    Abstract: The invention provides an efficient method to purify an aqueous solution, typically mine drainage water, especially of anions and cations present in the aqueous solution as dissolved solids, the anions and cations are removed by treatment with a positively charged extractant having at least eight carbon atoms, whereby an unstable emulsion is formed; the unstable emulsion is allowed to break into an extract phase loaded with the anions and cations, and a water phase depleted in anions and cations; a floc inherently forms in the loaded extractant phase and then the loaded extractant phase and floc are separated from the purified water and treated to remove the anions and cations as concentrated useful products; the treated aqueous phase now reduced in anion and/or cation content is also separated from the emulsion as a purified aqueous solution. The extractant phase is preferably recycled. A continuous water purification process is provided.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: December 3, 2019
    Assignee: Winner Water Services, Inc.
    Inventors: Bruce F. Monzyk, F. Michael Von Fahnestock, James K. Rose, H. Nick Conkle, Ming Wang, Satya P. Chauhan, Ruey K. Bruce, Tenisha Highsmith
  • Patent number: 10449481
    Abstract: A CO2 recovery unit and a CO2 recovery method capable of having an excellent CO2 absorption rate and saving energy are provided. A CO2 recovery unit of the invention includes: a CO2 absorber which includes an upper CO2 absorption unit obtaining a CO2 absorbent by causing a flue gas containing CO2 to contact a CO2 absorbent and a lower CO2 absorption unit obtaining a CO2 absorbent by causing the CO2 absorbent to contact a flue gas containing CO2; a CO2 absorbent regenerator which obtains the CO2 absorbent by heating the CO2 absorbent a thermometer which measures a temperature of the CO2 absorbent supplied from the CO2 absorber to the CO2 absorbent regenerator; and a control device which controls a temperature of the CO2 absorbent supplied to the lower CO2 absorption unit based on the temperature of the CO2 absorbent measured by the thermometer.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: October 22, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.
    Inventors: Atsuhiro Yukumoto, Takuya Hirata, Hiroshi Tanaka, Akiyori Hagimoto, Haruaki Hirayama, Tsuyoshi Oishi
  • Patent number: 10427094
    Abstract: A membrane permeation system and process accommodates varying acid gas inlet concentrations over time while utilizing only the initially installed equipment and still maintaining the non-permeate gas specification. The system and process provide flexibility to operate efficiently over a wide range of inlet CO2 concentrations by adjustments to primary permeate, secondary permeate, and recycle gas operations. The glassy polymer membrane devices used in the system and process are selected so removal duty efficiency increases as acid gas concentration increase. Designing the system and process to handle about a 15% increase in acid gas concentrations over initial conditions effectively treats acid gas concentrations well above that 15% increase, thereby eliminating the need for additional equipment or for additional downstream amines and physical solvents.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: October 1, 2019
    Assignee: Cameron Solutions, Inc.
    Inventor: Richard D. Peters
  • Patent number: 10363517
    Abstract: Disclosed are systems and methods for producing oil and gas in a plant while removing hydrogen sulfide and water from fluids produced from oil and gas reservoirs and injecting a sour gas stream containing the hydrogen sulfide into an underground formation. Water-selective membranes are used to debottleneck known systems and methods by removing water from bottlenecked sections of the plant including pretreatment of a sour gas feed to one or more gas processing plants. In other aspects, water-selective membranes are used to debottleneck the pretreatment of an acid gas feed to a Claus unit to convert hydrogen sulfide to sulfur in a gas processing plant. The water-selective membranes pretreat the acid gas feed.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: July 30, 2019
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Nitesh Bhuwania, Shabbir Husain, Daniel Chinn, Ronald P. MacDonald, Tapan K. Das
  • Patent number: 10350542
    Abstract: A system and a method for industrial plant or utility plant flue gas desulfurization, with zero waste water liquid discharge from a wet flue gas desulfurization system utilized therein, are disclosed herein. The wet flue gas desulfurization system is supplied an absorption liquid for contact with a flue gas to absorb flue gas acid gases. Waste water from the wet flue gas desulfurization system is heated under pressure in a heat exchanger to produce heated waste water, which is supplied to a flash vessel to produce steam. The produced steam is supplied to the flue gas upstream of a particulate collection system and the wet flue gas desulfurization system, supplied to the flue gas upstream of the wet flue gas desulfurization system, or supplied to absorption liquid circulated to the wet flue gas desulfurization system.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: July 16, 2019
    Assignee: General Electric Company
    Inventor: Sanjay Kumar Dube
  • Patent number: 10322366
    Abstract: Wet-type carbon dioxide capturing equipment includes a CO2 absorption tower where CO2 of an exhaust gas reacts with an absorbent, a CO2 stripping tower where CO2 is separated from a rich solution absorbed the CO2 in the CO2 absorption tower, a reboiler for supplying thermal energy to the CO2 stripping tower to separate the CO2 from the rich solution in the CO2 stripping tower, a first heat exchanger for heating the rich solution by exchanging heat between a lean solution having the CO2 separated therefrom in the CO2 stripping tower and the rich solution, a mechanical vapor recompressor (MVR) for compressing a CO2 gas separated in the CO2 stripping tower, and a second heat exchanger for separating a portion of CO2 from the rich solution by heating the rich solution by exchanging heat between the CO2 gas compressed in the MVR and the rich solution passing through the first heat exchanger, in which the rich solution having CO2 that is not separated in the second heat exchanger is input to the CO2 stripping tower
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: June 18, 2019
    Assignee: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventors: Young Ill Lee, Tea Young Lim, Seong Pill Cho, Eun Kyu Choi, Sung Mun Yoon
  • Patent number: 10308765
    Abstract: Methods of forming nanoporous materials are described herein that include forming a polymer network with a chemically removable portion. The chemically removable portion may be polycarbonate polymer that is removable on application of heat or exposure to a base, or a polyhexahydrotriazine (PHT) or polyhemiaminal (PHA) polymer that is removable on exposure to an acid. The method generally includes forming a reaction mixture comprising a formaldehyde, a solvent, a primary aromatic diamine, and a diamine having a primary amino group and a secondary amino group, the secondary amino group having a base-reactive substituent, and heating the reaction mixture to a temperature of between about 50 deg C. and about 150 deg C. to form a polymer. Removing any portion of the polymer results in formation of nanoscopic pores as polymer chains are decomposed, leaving pores in the polymer matrix.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: June 4, 2019
    Assignee: International Business Machines Corporation
    Inventors: Dylan J. Boday, Jeannette M. Garcia, James L. Hedrick, Rudy J. Wojtecki
  • Patent number: 10279306
    Abstract: A method for separating gaseous carbon dioxide from a mixture by cyclic adsorption/desorption using a unit containing an adsorber structure with sorbent material, wherein the method comprises the following steps: (a) contacting said mixture with the sorbent material to allow said gaseous carbon dioxide to adsorb under ambient conditions; (b) evacuating said unit to a pressure in the range of 20-400 mbarabs and heating said sorbent material to a temperature in the range of 80-130° C.; and (c) re-pressurization of the unit to ambient atmospheric pressure conditions and actively cooling the sorbent material to a temperature larger or equal to ambient temperature; wherein in step (b) steam is injected into the unit to flow-through and contact the sorbent material under saturated steam conditions, and wherein the molar ratio of steam that is injected to the gaseous carbon dioxide released is less than 20:1.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: May 7, 2019
    Assignee: CLIMEWORKS AG
    Inventors: Christoph Gebald, Nicolas Repond, Jan Andre Wurzbacher
  • Patent number: 10201776
    Abstract: An absorption type carbon dioxide removal/concentration apparatus has a honeycomb rotor which holds an amine support solid absorbent. The honeycomb rotor is divided into at least a processing zone and a reproduction zone. An enthalpy (temperature and humidity) adjustment device is provided for the air for reproduction and/or the air to be processed. The apparatus can control the carbon dioxide absorbing performance and the concentration performance by passing processing and reproduction air through the corresponding zones. The absorption type carbon dioxide removal/concentration apparatus can remove or condense carbon dioxide, can secure high recovery efficiency and can prevent a thermal deterioration of the amine absorbent to extend the life-span of the apparatus.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: February 12, 2019
    Assignee: SEIBU GIKEN CO., LTD.
    Inventors: Ayako Kuroda, Koji Inoue, Hiroshi Okano
  • Patent number: 10202336
    Abstract: Plant for the synthesis of urea, comprising: a synthesis section comprising at least one reactor, a compressor for supplying CO2 to said synthesis section, a gas turbine for the operation of said CO2 compressor and a heat recovery steam generator; the heat source of said heat recovery steam generator consists of the exhaust gases of said gas turbine, and at least one steam flow produced by said heat recovery steam generator is used as heat source for at least one component of said urea plant.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: February 12, 2019
    Assignee: Casale SA
    Inventor: Andrea Scotto
  • Patent number: 10159962
    Abstract: Catalysts for oxidative sulfur removal and methods of making and using thereof are described herein. The catalysts contain one or more reactive metal salts dispersed on one or more substrates. Suitable reactive metal salts include those salts containing multivariable metals having variable valence or oxidation states and having catalytic activity with sulfur compounds present in gaseous fuel streams. In some embodiments, the catalyst contains one or more compounds that function as an oxygen sponge under the reaction conditions for oxidative sulfur removal. The catalysts can be used to oxidatively remove sulfur-containing compounds from fuel streams, particularly gaseous fuel streams having high sulfur content.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: December 25, 2018
    Assignee: INTRAMICRON, INC.
    Inventors: Hongyun Yang, Paul S. Dimick
  • Patent number: 10125018
    Abstract: The present invention provides a method for producing a syngas stream, the method at least comprising the steps of: (a) providing a hydrocarbon-containing stream; (b) providing a reactor containing a heated mass of solids at a temperature of at least 1000° C.; (c) cracking the hydrocarbon-containing stream provided in step (a) in the reactor containing the heated mass of solids provided in step (b), thereby at least obtaining C and H2; (d) removing an H2-containing stream from the reactor; (e) converting the C obtained in step (c) in the reactor at an H2O/CO2 vol. % feed ratio of greater than zero, thereby obtaining a CO/H2-containing stream; (f) removing the CO/H2-containing stream from the reactor; (g) combining the H2-containing stream removed in step (d) with the CO/H2-containing stream removed in step (f) thereby obtaining a syngas stream.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: November 13, 2018
    Assignee: SHELL OIL COMPANY
    Inventors: Ronald Jan Schoonebeek, Alouisius Nicolaas Renée Bos
  • Patent number: 10000383
    Abstract: A CO2 recovery apparatus capable of recovering CO2 by using only a low-quality exhaust heat at 100° C. or less is provided. The present invention includes an absorption tower for allowing a basic aqueous solution to absorb CO2; and a regenerator for heating a basic aqueous solution with CO2 absorbed therein using a heating medium having a temperature of 100° C. or less, thereby desorbing CO2.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: June 19, 2018
    Assignee: THE KANSAI ELECTRIC POWER CO., INC.
    Inventors: Tsunenori Watanabe, Tetsuo Sasaki, Michio Hirose, Yasuyuki Yagi, Hiroshi Deguchi
  • Patent number: 9975080
    Abstract: Exemplary embodiments relate to methods for removal of CO2 and other acid gases from gaseous fuels prior to combustion. Exemplary methods may be used for CO2 capture, H2 purification and natural gas sweetening. Exemplary methods use at least one ionic liquid that has excellent CO2 solubility, selectivity over hydrogen, low viscosity, and resistance to H2S.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: May 22, 2018
    Assignee: U.S. Department of Energy
    Inventors: David Luebke, Hunaid Nulwala, Brian Kail, Fan Shi, Robert L Thompson, Nicholas Siefert