Patents Examined by Anita Nassiri Motlagh
  • 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: 10968500
    Abstract: When coal is combusted, such as in the process of generating electricity, fly ash is produced in abundant quantities. Methods and systems are provided for extracting materials, such as rare earth elements critical for national security or nuclear power generation, from fly ash. A method of processing fly ash includes installing a collection system in a fly ash pond. The method further includes applying water to the top surface of the fly ash pond, such that the water leaches through fly ash and into the collection system. The leached water is processed to remove materials, such as rare earth elements. Systems are also provided.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: April 6, 2021
    Inventor: Gregory Rudolph Verderber
  • Patent number: 10960353
    Abstract: An all-condition auxiliary denitration system and an operation method thereof are provided. The system includes a heat-storage medium heater, a low-temperature reheater, an economizer, and an SCR denitration device which are successively interconnected, and further including a heat-storage medium tank and a heat-storage medium and feedwater heat exchanger. A flow of a cold heat-storage medium entering the heat-storage medium heater is regulated, so that heat absorption of the heat-storage medium is matched with a boiler load. Flows of hot heat-storage medium and feedwater, which enter the heat-storage medium and feedwater heat exchanger, are regulated through a feedwater regulating valve and a hot heat-storage medium outlet regulating valve. A total feedwater flow is regulated with assistance of a bypass feedwater regulating valve, so that a temperature of flue gas entering the SCR denitration device is kept in an optimal operation range under different boiler loads, and denitration efficiency is ensured.
    Type: Grant
    Filed: June 22, 2019
    Date of Patent: March 30, 2021
    Inventors: Hui Yan, Daotong Chong, Ming Liu, Jinshi Wang, Weixiong Chen, Junjie Yan
  • Patent number: 10953384
    Abstract: The invention relates to regenerative, solid sorbents for adsorbing carbon dioxide from a gas mixture, including air, with the sorbent including a modified polyamine and a solid support. The modified polyamine is the reaction product of an amine and an epoxide. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple cycles of adsorption-desorption.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: March 23, 2021
    Inventors: Alain Goeppert, Hang Zhang, George A. Olah, G. K. Surya Prakash
  • 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: 10914272
    Abstract: In accordance with the present invention, there are provided simplified systems and methods for catalytically deactivating, removing, or reducing the levels of reactive component(s) from the vapor phase of fuel storage tanks. The simple apparatus described herein can be utilized to replace complex OBIGGS systems on the market. Simply stated, in one embodiment of the invention, the vapor phase from the fuel tank is passed over a catalytic bed operated at appropriate temperatures to allow the reaction between free oxygen and the fuel vapor by oxidation of the fuel vapor, thus deactivating reactive component(s) in the gas phase.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: February 9, 2021
    Assignee: Phyre Technologies, Inc.
    Inventors: Stephen Walker, Santosh Limaye, Wesley Jung, Stuart Robertson
  • Patent number: 10913029
    Abstract: A method, scrubbing solution and apparatus for removing a H2S scavenger, for example dithiazine, from a gas stream uses an acidic solution to convert the H2S scavenger to a salt. The acidic solution may be a phosphoric acid solution.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: February 9, 2021
    Assignee: Canadian Energy Services L.P.
    Inventor: David Horton
  • Patent number: 10895003
    Abstract: The present invention provides a method for the fabrication of a steel sheet with a completely martensitic structure which has an average lath size of less than 1 micrometer and an average elongation factor of the laths is between 2 and 5. The elongation factor of a lath is defined as a maximum dimension lmax divided by and a minimum dimension lmin. The steel sheet has a yield stress greater than 1300 MPa and a mechanical strength greater than (3220(C)+958) megapascals. A composition of a semi-finished steel product includes, expressed in percent by weight, is, 0.15%?C?0.40%, 1.5%?Mn?3%, 0.005%?Si?2%, 0.005%?Al?0.1%, 1.8%?Cr?4%, 0%?Mo?2%, whereby: 2.7% 0.5 (Mn)+(Cr)+3(Mo)?5.7%, S?0.05%, P?0.1%, optionally: 0%?Nb?0.050%, 0.01%?Ti?0.1%, 0.0005%?B?0.005%, 0.0005%?Ca?0.005%. The semi-finished product is reheated to a temperature T1 in the range between 1050° C. and 1250° C., then subjected to a roughing rolling at a temperature T2 in the range between 1000 and 880° C.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: January 19, 2021
    Assignee: ArcelorMittal
    Inventors: Kangying Zhu, Olivier Bouaziz
  • Patent number: 10888816
    Abstract: The invention relates to a process for removing hydrogen sulfide and carbon dioxide from a feed gas stream. H2S in the feed gas stream is converted to elemental sulfur in a Claus unit. At least a part of the gas stream obtained is contacted with an aqueous lean absorbing medium in an absorption zone at a pressure between 0.9 and 2 bara. The aqueous lean absorbing medium used comprises one or more amines chosen from: —a polyamine in the absence of tertiary amine functionalities having a pKa sufficient to neutralize carbamic acid, the polyamine having at least one primary amine functionality having a pKa smaller than 10.0 at 25° C., —a polyamine in the absence of tertiary amine functionalities having a pKa sufficient to neutralize carbamic acid, the polyamine having at least one secondary amine functionality having a pKa for each sorbing nitrogen smaller than 10.0 at 25° C. The process is improved as compared to a process involving Claus off-gas treatment with (activated) MDEA.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: January 12, 2021
    Assignee: Shell Oil Company
    Inventors: Farhang Abdollahi, Paul-Emannuel Joseph Joseph Just, John Nicholas Sarlis
  • Patent number: 10888814
    Abstract: The present invention relates to the separation of gases, and more specifically to an inventive process for the removal of carbon dioxide gas using carefully selected ionic liquid absorbents together with water in a carefully selected ratio.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: January 12, 2021
    Assignee: The Queen's University of Belfast
    Inventors: Martin Atkins, Yong Cheun Kuah, Julien Estager, Shieling Ng, Alex Oliferenko, Natalia Plechkova, Alberto Puga, Kenneth Seddon, David Wassell
  • Patent number: 10866166
    Abstract: The present invention provides an improved sorbent and corresponding device(s) and uses thereof for the capture and stabilization of volatile organic compounds (VOC) or semi-volatile organic compounds (SVOC) from a gaseous atmosphere. The sorbent is capable of rapid and high uptake of one or more compounds and provides quantitative release (recovery) of the compound(s) when exposed to elevated temperature and/or organic solvent. Uses of particular improved grades of mesoporous silica are disclosed.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: December 15, 2020
    Assignee: XPLOSAFE, LLC
    Inventors: Shoaib F. Shaikh, Allen W. Apblett, Nicholas F. Materer
  • Patent number: 10850230
    Abstract: Processes and systems for producing potassium sulfate as a byproduct of a desulfurization process. Sulfur dioxide is absorbed from a flue gas using an ammonia-containing solution to produce an ammonium sulfate solution that contains dissolved ammonium sulfate. At least a first portion of the ammonium sulfate solution is heated before dissolving potassium chloride therein to form a slurry that contains potassium sulfate crystals and an ammonium chloride solution. The slurry is then cooled to precipitate additional potassium sulfate crystals, after which the potassium sulfate crystals are removed to yield a residual ammonium chloride solution that contains dissolved ammonium chloride and residual dissolved potassium sulfate. Ammonia is then absorbed into the residual ammonium chloride solution to further precipitate potassium sulfate crystals, which are removed to yield a residual ammonium chloride solution that is substantially free of dissolved potassium sulfate.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: December 1, 2020
    Assignee: Marsulex Environmental Technologies Corporation
    Inventor: Eli Gal
  • Patent number: 10835854
    Abstract: A process for the cleaning of a lean gas stream contaminated with volatile organic compounds (VOCs) and/or sulfur-containing compounds comprises the steps of adding ozone to the contaminated lean gas stream, subjecting the ozone-containing lean gas stream to ultraviolet irradiation, thereby transforming VOCs to particles, maintaining the irradiated gas stream in a stay zone for a sufficient time to allow aerosol particle growth, and passing the gas stream through a catalytic bag filter at a temperature down to room temperature to remove the formed particles and eliminate any remaining ozone. The bag filter has been made catalytic by impregnation with one or more metal oxides in which the metals are selected from V, W, Pd and Pt, supported on TiO2.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: November 17, 2020
    Assignee: Haldor Topsoe A/S
    Inventors: Janus Emil Münster-Swendsen, Niklas Bengt Jakobsson
  • Patent number: 10835857
    Abstract: A method for treating an acid gas stream in a sulfur recovery system is provided, the method including providing a motive fluid to an ejector, providing the acid gas stream to the ejector to obtain a mixture, the mixture comprising the motive fluid and the acid gas stream, providing the mixture to a reaction furnace, providing a combustion gas to the reaction furnace, the combustion gas comprising oxygen, and reacting the contents of the reaction furnace. An apparatus for treating an acid gas stream is also provided.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: November 17, 2020
    Assignee: WorleyParsons Europe Ltd.
    Inventor: Elmo Nasato
  • Patent number: 10837341
    Abstract: Methods and systems are provided for an exhaust tract for vehicles having an internal combustion engine, the exhaust tract including a first exhaust gas aftertreatment device and a metering device arranged downstream therefrom. In one example, a region of the first exhaust gas aftertreatment device which is situated downstream is designed as an SCR region. Further, the metering device is designed to spray a reducing agent onto a side of the first exhaust gas aftertreatment device which faces the metering device, counter to a main direction of flow of an exhaust gas.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: November 17, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Mario Balenovic, Felix Goebel, Martina Reichert, Monika Angst, Robert Ukropec, Brendan Patrick Carberry
  • Patent number: 10835862
    Abstract: SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler which is provided on a downstream side of the SOx removal equipment for reducing the sulfur oxides that remain in the flue gas and for decreasing a gas temperature, CO2 recovery equipment which includes a CO2 absorber, and an absorption liquid regenerator, and mist generation material reduction equipment for reducing a mist generation material which is a generation source of mist that is generated in the CO2 absorber of the CO2 recovery equipment before introducing the flue gas to the CO2 recovery equipment are included.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: November 17, 2020
    Inventors: Tatsuto Nagayasu, Takashi Kamijo, Masayuki Inui, Tsuyoshi Oishi, Hiromitsu Nagayasu, Hiroshi Tanaka, Takuya Hirata, Tatsuya Tsujiuchi, Susumu Okino, Naoyuki Kamiyama, Seiji Yoshihara
  • Patent number: 10828601
    Abstract: In a method for removing methane from feed gas having a methane concentration of 2 mole % or less, the feed gas is optionally mixed with make-up methane or air and passed through a heat exchanger to heat the gas to an oxidation reactor inlet temperature T1. The heated stream is passed to the reactor where the methane is oxidised. A gas stream including the products of the oxidation reaction are removed with the gas stream being at a reactor outlet temperature T2 higher than the inlet temperature T1. The gas stream is then passed through the heat exchanger against the reactor stream to recover heat from the gas stream removed in the reactor and to heat the reactor stream. The outlet temperature T2 is measured and the inlet temperature T1 is controlled by adjusting the relative amount of make-up methane and/or air added to the feed gas.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: November 10, 2020
    Assignee: Johnson Matthey Davy Technologies Limited
    Inventors: David Watson, John Swinney
  • Patent number: 10821400
    Abstract: A method for removing NOx from flue gas by SCR includes supplying a reagent for the SCR reaction of NOx into the flue gas, then contacting the flue gas with a catalyst. Supplying the reagent includes supplying a less than stoichiometric amount of reagent, and after contacting the flue gas with a catalyst a final NOx removal step is provided.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: November 3, 2020
    Inventors: Olaf Stallmann, Wuyin Wang, Jean-Marc Gilbert Amann, Frank Klaus Ennenbach
  • Patent number: 10807039
    Abstract: Contaminant treatment methods and systems are described. Methods utilize biodegradable, non-toxic materials that can carry one or more functionalities useful for the remediation of fluids such as liquid or gaseous waste streams, chemical spills, etc. The carrier materials carry one or more functional groups that can target particular contaminants of a fluid for removal and/or modification to a more benign form. Targeted contaminants can include components of gaseous and/or liquids such as, and without limitation, gaseous discharges including VOCs and potentially hazardous contaminants such as organophosphorous compounds.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: October 20, 2020
    Assignee: Clemson University
    Inventors: Daniel Whitehead, Frank Alexis
  • Patent number: 10788207
    Abstract: Device (10) for injecting powders into a furnace pipe (500), comprising a chamber (230) connected to a peripheral pipe (220) and, on the other hand, to the said furnace pipe via the said peripheral pipe (220), which comprises a first part (221) of diameter DP1, and a second part (222) of diameter DP2, having a downstream end (222a) and intended to be in communication with the furnace pipe, and a powder conveying pipe (120) which has a diameter DT and a downstream end (121), characterized in that the second part of the peripheral pipe has a length L?the diameter (DP2) of the second part of the peripheral pipe, and in that the diameter (DT) and the diameter (DP2) are connected by the relationship 0<DP2?DT<½ DT.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: September 29, 2020
    Assignee: S.A. Lhoist Recherche et Developpement
    Inventors: Kevin De Bois, Donatien Laloux