Patents Examined by Timothy Vanoy
  • Patent number: 9878283
    Abstract: A system for the removal of oxygen from an inert atmosphere includes a media housed in a body and passes the inert atmosphere through the media using a fan, where delivery of power from a power source to the fan is stopped when a temperature proximate the media exceeds a predetermined temperature or when the oxygen level exceeds a predetermined level.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: January 30, 2018
    Assignee: WEMS, INC.
    Inventors: Melvin W. Hughes, Ronald S. Hood, William Carter Mathews, Dmitry Vernik
  • Patent number: 9869222
    Abstract: A method for oxidizing soot from diesel exhaust gas from a diesel engine. The method involves providing a diesel particulate filter for receiving the diesel exhaust gas; coating a catalyst composition on the diesel particulate filter; and contacting the soot from the diesel exhaust gas with the catalyst coated diesel particulate filter at a temperature sufficient to oxidize the soot to carbon dioxide. The catalyst composition is a doped or undoped manganese oxide octahedral molecular sieve (OMS-2) material. A diesel exhaust gas treatment system that includes a diesel particulate filter for receiving diesel exhaust gas from a diesel engine and collecting soot; and a catalyst composition coated on the diesel particulate filter. The catalyst composition is a doped or undoped manganese oxide octahedral molecular sieve (OMS-2).
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: January 16, 2018
    Assignee: University of Connecticut
    Inventors: Steven L. Suib, D. A. Saminda Dharmarathna, Lakshitha R. Pahalagedara
  • Patent number: 9868116
    Abstract: Fe-SAPO-34 silicoaluminophosphates having Fe2+ organic complexes and methods for their direct synthesis in the absence of a co-templating agent are described. Fe-SAPO-34 silicoaluminophosphate having Fe3+ located in extra-framework locations within the pores of cages of the crystal are described. They are prepared by calcining the Fe-SAPO-34 silicoaluminphosphates containing Fe2+ polyamine complexes. Methods of using the Fe-SAPO-34 having Fe3+ located in extra-framework locations within the pores of cages of the crystal in the treatment of exhaust gases are described.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: January 16, 2018
    Assignee: Johnson Matthey Public Limited Company
    Inventors: John Leonello Casci, Paul A. Wright, Alessandro Turrina
  • Patent number: 9861934
    Abstract: A system for vaporizing and optionally decomposing a reagent, such as aqueous ammonia or urea, which is useful for NOx reduction, includes a cyclonic decomposition duct, wherein the duct at its inlet end is connected to an air inlet port and a reagent injection lance. The air inlet port is in a tangential orientation to the central axis of the duct. The system further includes a metering valve for controlling the reagent injection rate. A method for vaporizing and optionally decomposing a reagent includes providing a cyclonic decomposition duct which is connected to an air inlet port and an injection lance, introducing hot gas through the air inlet port in a tangential orientation to the central axis of the duct, injecting the reagent axially through the injection lance into the duct; and adjusting the reagent injection rate through a metering valve.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: January 9, 2018
    Assignee: PEERLESS MFG.CO
    Inventors: James M. Valentine, Jeffrey Michael Broderick, Thomas V. Eldredge, Saiprasad Jangiti, Eric Lindemann
  • Patent number: 9855528
    Abstract: An exhaust gas cleaning system, comprising an active regenerable particulate filter and an SCR catalyst comprising a hydrothermally microporous stable zeolite having the AEI type framework and being promoted with copper, where the zeolite is SSZ-39.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: January 2, 2018
    Assignee: Haldor Topsoe A/S
    Inventors: Manuel Moliner Marin, Cristina Franch Marti, Antonio Eduardo Palomares Gimeno, Avelino Corma Canós, Peter N. R. Vennestrøm, Marie Grill, Arkady Kustov, Joakim Reimer Thøgersen
  • Patent number: 9849421
    Abstract: A catalytic filter is provided having a mixture of an SCR catalyst and soot oxidation catalyst where the soot oxidation catalyst is a copper doped ceria, iron doped ceria or manganese doped ceria. The mixture of an SCR catalyst and soot oxidation catalyst provides for a lowering of the peak oxidation temperature for soot removal from the filter. The use of the filter allows for improved soot combustion and reduces the susceptibility of an SCR catalyst contained on a filter to deterioration. The soot oxidation catalyst also improves the resistance of the SCR catalyst to poisoning and subsequent deterioration of SCR performance.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: December 26, 2017
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Guy Richard Chandler, Paul Richard Phillips
  • Patent number: 9849419
    Abstract: A process for the production of liquid acid, comprising the steps of: feeding liquid acid with a first concentration into a gas purification; passing a gas through the gas purification such that a second concentration of the liquid acid is reached; withdrawing the liquid acid from the sump of the gas purification, where in the gas purification sump is divided by a partition wall into a first and a second section. The concentration of the liquid acid collected in the first section is adjusted to the first concentration. The liquid acid with the first concentration from the first section is at least partially fed back into step and the liquid acid with the second concentration collected in the second section is at least partially withdrawn as product.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: December 26, 2017
    Assignee: OUTOTEC (FINLAND) OY
    Inventors: Karl-Heinz Daum, Hannes Storch, Wolfram Schalk
  • Patent number: 9851101
    Abstract: A boiler system is provided including: a boiler that burns fuel containing sulfur content, chlorine content, and water content to generate a combustion gas; a bagfilter that removes sulfur oxide; a denitration section that removes nitrogen oxide; a desulfurizing absorbent supply section that mixes a desulfurizing absorbent into the combustion gas on an upstream side of the bagfilter; and a reformer that mixes a denitrating reagent into the combustion gas on an upstream side of the denitration section, wherein the bagfilter performs dry desulfurization, and a temperature of the combustion gas passing through the bagfilter and flowing into the denitration section is higher than 200° C. and 350° C. or lower, and the combustion gas from which the sulfur oxide has been removed by the bagfilter flows into the denitration section without being heated on the upstream side of the denitration section.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: December 26, 2017
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Tomotsugu Masuda, Masashi Kiyosawa
  • Patent number: 9849420
    Abstract: A system for cleaning flue gas, the system including a particulate removal system; an additive injector positioned downstream of the particulate removal system, for injecting an additive into the flue gas; a powdered sorbent injector positioned downstream of the additive injector, for injecting powdered sorbents, wherein no powdered sorbent injectors are positioned upstream of the particulate removal system; and a flue gas desulfurization system positioned downstream from the powdered sorbent injector, wherein no other processing apparatus is located between the powdered sorbent injector and the flue gas desulfurization system.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: December 26, 2017
    Assignee: CARBONXT, INC.
    Inventors: David W. Mazyck, Heather Byrne, Regina Rodriguez, Christine O. Valcarce
  • Patent number: 9850442
    Abstract: A flue gas additive is provided that includes both a nitrogenous component to reduce gas phase nitrogen oxides and a halogen-containing component to oxidize gas phase elemental mercury.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: December 26, 2017
    Assignee: ADA-ES, Inc.
    Inventors: Constance Senior, Gregory M. Filippelli, Cynthia Jean Bustard, Michael D. Durham, William J. Morris, Sharon M. Sjostrom
  • Patent number: 9828896
    Abstract: An exhaust system for treating an exhaust gas from an internal combustion engine is disclosed. The system comprises a modified lean NOx trap (LNT), a urea injection system, and an ammonia-selective catalytic reduction catalyst. The modified LNT comprises a first layer and a second layer. The first layer comprises a NOx adsorbent component and one or more platinum group metals. The second layer comprises a diesel oxidation catalyst zone and an NO oxidation zone. The diesel oxidation catalyst zone comprises a platinum group metal, a zeolite, and optionally an alkaline earth metal. The NO oxidation zone comprises a platinum group metal and a carrier. The modified LNT stores NOx at temperatures below about 200° C. and releases at temperatures above about 200° C. The modified LNT and a method of using the modified LNT are also disclosed.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: November 28, 2017
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Daniel Swallow, Stuart David Reid, Paul Richard Phillips, James Alexander Wylie
  • Patent number: 9827551
    Abstract: This invention provides a method of removing sulfur oxides, mercury vapor and other contaminants from a flue gas stream and a flue gas treatment device comprising a sorbent polymer composite substrate comprising a high surface area support and a durable halogen source adjacent the sorbent polymer composite substrate. The halogen source comprises a compound with a quaternary ammonium halogen salt that is not washed away.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: November 28, 2017
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Steve Hardwick, Xiao-Chun Lu
  • Patent number: 9822973
    Abstract: Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: November 21, 2017
    Assignee: NOx II, Ltd.
    Inventor: Douglas C. Comrie
  • Patent number: 9821269
    Abstract: A method is described for mixing gas and liquid for gravitational, physical and chemical collection of compounds or particles, based on decreasing of the compounds free mean path in a vessel, and comprising the steps of: gravitational depletion, involving abating compounds and liquid chemical solution drops with higher diameter than higher volume; physical deposition, involving the condensation of abated compounds on a wet surface of the vessel; chemical adsorption, involving chemical reaction between the abated compounds and the species in the liquid chemical solution.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: November 21, 2017
    Assignees: IS Clean Air Italia S.r.l.
    Inventors: Mauro Tripodi, Paolo Tripodi
  • Patent number: 9821272
    Abstract: A device and a method for reducing carbon monoxide, hydrocarbons, nitrogen oxides and soot particles present in the exhaust gases of diesel engines are provided. The device includes 1) a diesel oxidation catalyst for the oxidation of carbon monoxide, hydrocarbons and nitrogen monoxide; 2) a first unit by means of which ammonia and/or a compound that breaks down to form ammonia can be metered into the exhaust gas that is to be purified; 3) a catalytically activated particulate filter, containing a wall-flow filter substrate comprising a catalytically active material that promotes the selective catalytic reduction of nitrogen oxides to form nitrogen; 4) a second unit by means of which ammonia and/or a compound that breaks down to form ammonia can be metered into the exhaust gas that is to be purified; as well as 5) a catalyst for the selective catalytic reduction of nitrogen oxides to form nitrogen.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: November 21, 2017
    Assignee: Deutz Aktiengesellschaft
    Inventors: Stephan Schraml, Meike Wittrock, Markus Mueller
  • Patent number: 9821268
    Abstract: In order to reduce energy consumed for waste water treatment, in a scrubber, an exhaust gas is purified into a purified gas by bringing SO2 contained in the exhaust gas into contact with cleaning seawater and SO2-absorbed cleaning seawater is discharged as waste water. Then, a flow rate and a concentration of SO2 of the exhaust gas and a concentration of SO2 of the purified gas are measured. These measurement values are used as a basis to calculate an amount of HSO3? obtained by being absorbed into the cleaning seawater, and an amount of dilution seawater in accordance with this calculation result is supplied to the waste water.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: November 21, 2017
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventor: Hiroyuki Touyama
  • Patent number: 9815693
    Abstract: A method of producing sulphuric acid from a sour tail gas comprises (a) obtaining a sour tail gas stream comprising H2S or reduced sulphur species or a combination thereof from an oil and gas facility; (b) subjecting the sour tail gas stream to oxidation and obtaining an oxidized gas stream comprising SO2; and, (c) utilizing the oxidized gas stream to obtain sulphuric acid and a SO2 reduced tail gas stream. The method may further comprise subjecting the oxidized gas stream to a regenerable absorption process. The sulphuric acid may be used to produce fertilizer.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: November 14, 2017
    Assignee: SHELL OIL COMPANY
    Inventors: Menno Bastiaan Hendrik Gierman, John Nicholas Sarlis, Joe Gelder, Philippe Micone
  • Patent number: 9815023
    Abstract: The invention relates to a method for purifying exhaust gas and for regenerating an oxidation catalytic converter, comprising treating the exhaust gas in an oxidation catalytic converter, which comprises a catalytically active material, which contains at least one noble metal and/or at least one base transition metal, wherein the oxidation catalytic converter is operated continuously or at times at a temperature that causes the oxidation of soot particles and/or carbon particles, and/or wherein the oxidation catalytic converter is periodically heated to a temperature that causes the oxidation of soot particles and/or carbon particles.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: November 14, 2017
    Assignee: Clariant International Ltd.
    Inventors: Margit Schuschke, Frank Klose, Andane Stein, Arno Tissler, Olaf Buettner, Grigory Reznikov
  • Patent number: 9808756
    Abstract: A liquid suspension comprised of ferrous sulfide particles and method of using the same for the removal of selenium from industrial gas. Said liquid suspension may be (1) directly injected, or (2) coated onto or into a substrate and then injected into an industrial gas containing selenium to remove said selenium from the industrial gas stream in a dry scrubber system. Said liquid suspension of ferrous sulfide particles may also be used to remove selenium contained in industrial gases in a wet scrubber system.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: November 7, 2017
    Assignee: Redox Technology Group, LLC
    Inventors: Gary J. Meyer, Thomas P. McCullough, Anthony J. Kriech
  • Patent number: 9810118
    Abstract: This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3-SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3-SCR catalyst adsorbs the ammonia from the upstream lean NOx trap generated during the rich pulses. The stored ammonia then reacts with the NOx emitted from the upstream lean NOx trap-enhancing the net NOx conversion rate significantly, while depleting the stored ammonia. By combining the lean NOx trap with the NH3-SCR catalyst, the system allows for the reduction or elimination of NH3 and NOx slip, reduction in NOx spikes and thus an improved net NOx conversion during lean and rich operation.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: November 7, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Haren Sakarai Gandhi, John Vito Cavataio, Robert Henry Hammerle, Yisun Cheng