Utilizing Organic Reactant Patents (Class 423/226)
  • Patent number: 10695712
    Abstract: A process and an apparatus for regenerating the loaded scrubbing medium in a physical gas scrub in which at least materials of a first type and a second type are scrubbed out of a gas mixture, where predominantly materials of the first type are separated off from scrubbing medium loaded with materials of the first type and the second type by stripping at elevated pressure and a loaded scrubbing medium enriched in materials of the second type and also a gas phase that is made up of the stripping gas used in stripping and the materials separated off from the loaded scrubbing medium are obtained. The loaded scrubbing medium enriched in materials of the second type by means of stripping is depressurized and subsequently fed to a separator in order to obtain a flash gas.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: June 30, 2020
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Ilaria Ciattaglia, Alexander Brandl
  • Patent number: 10661220
    Abstract: A process is presented where a feed stream containing a hydrogen sulfide and another feed component is introduced into an absorber that the feed stream flows upward from the bottom of the absorber and contacts a liquid treatment solution, where the liquid treatment solution contains a sulfur dye catalyst. The hydrogen sulfide is absorbed into the liquid treatment solution and converted into sulfide ions. The other feed component is removed from the absorber vessel substantially free of the hydrogen sulfide and a spent treatment solution is also removed from the absorber vessel and fed to an oxidation vessel where it is contacted with an oxygen containing gas causing the sulfide ions to oxidize to thiosulfate and converting the spent sulfur dye catalyst to regenerated sulfur dye catalyst. The thiosulfate is recovered, and the regenerated sulfur dye catalyst can be recycled as part of the liquid treatment solution.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: May 26, 2020
    Assignee: MERICHEM COMPANY
    Inventors: David Jackson, Jeffrey Bruce Gomach, Michael Hardy
  • Patent number: 10633601
    Abstract: Treatment of streams containing hydrogen and/or hydrocarbons, and in one non-limiting embodiment refinery distillates, with alkyl carbonates, such as dimethylcarbonate, alone or together with at least one solvent results in reduction or removal of hydrogen sulfide (H2S) that is present to give easily removed alkyl sulfides and/or mercaptans. In one non-limiting embodiment, the treatment converts the original hydrogen sulfide into alkyl sulfides and/or mercaptans that can be extracted from the stream with caustic solutions, mercaptan scavengers, solid absorbents such as clay or activated carbon or liquid absorbents such as amine-aldehyde condensates and/or aqueous aldehydes.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: April 28, 2020
    Assignee: Baker Hughes, a GE company, LLC
    Inventor: Jerry J. Weers
  • Patent number: 10507434
    Abstract: The present invention provides a composition for a CO2 gas separation membrane containing: at least one compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate, and an alkali metal hydroxide; a crosslinked polymer in which a polymer having a carboxyl group has been crosslinked; and a non-crosslinked polymer obtained by polymerization of one or more monomers selected from the group consisting of vinyl acetate, acrylic acid, methacrylic acid, and a derivative thereof.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: December 17, 2019
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Yudai Ota, Yoshihito Okubo, Osamu Okada, Nobuaki Hanai, Peng Yan, Yasato Kiyohara, Atsushi Yamamoto
  • Patent number: 10495379
    Abstract: A system for conditioning a sour gas feed stream for a cryogenic distillation tower. A dehydration unit separates the sour gas feed stream into a first stream including water and a feed stream. A sequential cooling assembly is coupled to both the dehydration unit and the cryogenic distillation tower. The sequential cooling assembly includes: a first stage that separates the feed stream into a partially cooled feed stream and a second stream including acid gas; a second stage that cools the partially cooled feed stream into a cooled feed stream and a third stream including acid gas; and a cooled feed stream header coupled to a cryogenic distillation tower feed inlet. The first stage, the second stage, or both send at least one of the second and third streams to a bottom section of the cryogenic distillation tower.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: December 3, 2019
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Ananda K. Nagavarapu, P. Scott Northrop, Robert D. Denton, James A. Valencia
  • Patent number: 10337779
    Abstract: A gas recovery system separates a mixed gas including a process gas and an inert gas. The gas recovery system includes a cooling section for cooling and liquefying the process gas contained in the mixed gas by cooling the mixed gas at a temperature higher than a condensation temperature of the inert gas and lower than a condensation temperature of the process gas, a separating section for separating the cooled mixed gas into the process gas in a liquid state and the inert gas in a gas state, and a process gas recovery line that is connected to the separating section which circulates and gasifies the liquid-state process gas and then supplies the process gas into the a compressor. The mixed gas is formed by mixing the process gas, which is compressed by the compressor, and the inert gas, which is supplied to a seal portion of the compressor.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: July 2, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Takuya Watanabe, Koichi Mizushita, Tomoaki Takeda, Yasushi Mori
  • Patent number: 10293299
    Abstract: A method of treating oil and gas streams to remove total organic sulfur or total acid gas including the step of treating the gas stream with a solution of an amine, physical solvent, and water wherein the amine solution may optionally also contain an activator.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: May 21, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Christophe R. Laroche, Gerardo Padilla, John R. Dowdle
  • Patent number: 10281086
    Abstract: The present invention generally relates to one or more compositions and methods for inhibiting the formation of gas hydrate agglomerates in a fluid. The fluid may be contained, for example, in an oil or gas pipeline or refinery.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: May 7, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Peter A. Webber, Sahana Nagappayya
  • Patent number: 10245552
    Abstract: A carbon dioxide separation method including the steps of: feeding a mixed gas that contains at least carbon dioxide and water vapor to a carbon dioxide separation membrane that contains a hydrophilic resin and a carbon dioxide carrier; separating, from the mixed gas, a permeation gas that contains the carbon dioxide by use of the carbon dioxide separation membrane; adjusting temperature of gas which contacts the carbon dioxide separation membrane so that a temperature difference between the mixed gas and the permeation gas is not lower than 0° C. and not higher than 20° C.; and adjusting pressure of the permeation gas, the pressure of the permeation gas and water vapor partial pressure in the mixed gas satisfying the following formula (1): 2.5 kPaA<(pressure of permeation gas)<(water vapor partial pressure in mixed gas) . . . (1).
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: April 2, 2019
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Nobutaka Kodama, Emi Okubo, Osamu Okada, Nobuaki Hanai
  • Patent number: 10239014
    Abstract: A solvent for recovery of carbon dioxide from gaseous mixture, having alkanolamine, reactive amines acting as promoter or activators, glycol, and a carbonate buffer. A solvent for recovery of carbon dioxide from gaseous mixture, having alkanolamine, reactive amines acting as promoter or activators, sulfolane, and a carbonate buffer. One specific solvent contains less than about 75% by weight of water and has a single liquid phase.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: March 26, 2019
    Inventors: Prateek Bumb, Ramesh Kumar Ausula, Aniruddha Sharma
  • Patent number: 10232319
    Abstract: The present invention provides a composition for a CO2 gas separation membrane containing: at least one compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate, and an alkali metal hydroxide; a crosslinked polymer in which a polymer having a carboxyl group has been crosslinked; and a non-crosslinked polymer obtained by polymerization of one or more monomers selected from the group consisting of vinyl acetate, acrylic acid, methacrylic acid, and a derivative thereof.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: March 19, 2019
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, RENAISSANCE ENERGY RESEARCH CORPORATION
    Inventors: Yudai Ota, Yoshihito Okubo, Osamu Okada, Nobuaki Hanai, Peng Yan, Yasato Kiyohara, Atsushi Yamamoto
  • Patent number: 10173167
    Abstract: A hybrid method for capturing CO2 from a gas mixture is provided, comprising a step of contacting the CO2 containing gas mixture with a slurry consisting of a liquid medium, imidazole or imidazole derivative(s), and a metal-organic framework material (MOFs). For the slurry system, the mass fraction of the imidazole or imidazole derivative(s) in it ranging from 2 to 50% and the mass fraction of the metal-organic framework material in it ranging from 5 to 25%. In the technical solution provided in the present invention, through combining absorptive separation by the liquid solution in which the imidazole or imidazole derivative(s) is dissolved, adsorption separation by the MOF material suspended in the solution, and selective permeation separation by a liquid medium film forms on the outside surface of the suspended MOFs, an absorption-adsorption hybrid separation effect for CO2 gas mixtures is efficiently achieved.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: January 8, 2019
    Assignee: CHINA UNIVERSITY OF PETROLEUM-BEIJING
    Inventors: Guangjin Chen, Huang Liu, Bei Liu, Changyu Sun, Xueteng Gao
  • Patent number: 10164259
    Abstract: This binder for use in a positive electrode for a lithium ion secondary battery contains a copolymer of both vinyl alcohol and an alkali-metal-neutralized ethylenically unsaturated carboxylic acid.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: December 25, 2018
    Assignees: National Institute of Advanced Industrial Science and Technology, Sumitomo Seika Chemicals Co., Ltd.
    Inventors: Takashi Mukai, Masanori Morishita, Tetsuo Sakai, Yuji Kinpara, Junichi Fujishige, Nobutaka Fujimoto, Shuichi Karashima
  • Patent number: 10112829
    Abstract: A method of producing hydrogen comprising receiving a sour gas comprising CO2, H2S, and ammonia from a sour water stripper; introducing the sour gas to an absorption system to produce an ammonia rich gas and a sulfide rich gas, wherein the ammonia rich gas comprises ammonia and CO2, and wherein the sulfide rich gas comprises H2S and CO2; compressing the ammonia rich gas in a compressing unit to a pressure of 400-600 psig to produce a compressed ammonia rich gas; introducing the compressed ammonia rich gas to an ammonia cracker unit comprising a catalyst to produce a cracked gas, wherein the ammonia cracker unit is characterized by a cracking temperature of 450-550° C., and wherein the cracked gas comprises hydrogen, nitrogen, and CO2; and introducing the cracked gas to a PSA unit to produce hydrogen and a PSA tail gas, wherein the PSA tail gas comprises nitrogen and CO2.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: October 30, 2018
    Assignee: Fluor Technologies Corporation
    Inventors: Ravi Ravikumar, Paul M. Mathias
  • Patent number: 10040051
    Abstract: The invention concerns a method for treating a hydrocarbon feed gas stream containing at least CO2 and H2S to recover a high quality purified CO2 gas stream, comprising a. Separating said hydrocarbon feed gas stream into a sweetened hydrocarbon gas stream, and an acid gas stream; b. Introducing said gas stream into a Claus unit, c. Introducing the tail gas into a hydrogenation reactor and then into a quench contactor of the Tail Gas Treatment Unit (TGTU); d. Contacting said tail gas stream with a non-selective amine-based solvent into a non-selective acid gas absorption unit of the TGTU; e. Sending the off gas to an incinerator; f. Contacting said enriched gas stream (vii) with a selective H2S-absorption solvent into a selective H2S-absorption unit thereby recovering a highly purified CO2 gas stream and a H2S-enriched gas stream, as well as the device for carrying said method.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: August 7, 2018
    Assignee: TOTAL SA
    Inventors: Claire Weiss, Kamlesh Ghodasara, Bassame Derriche
  • Patent number: 10035966
    Abstract: Certain exemplary embodiments can provide a system, machine, device, manufacture, circuit, composition of matter, and/or user interface adapted for and/or resulting from, and/or a method and/or machine-readable medium comprising machine-implementable instructions for, activities that can comprise and/or relate to, reacting reactants comprising a ferric/ferrous chelate and a sour gas stream.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: July 31, 2018
    Assignee: BioSystems Consulting, Inc.
    Inventor: Henry Wilmore Cox, Jr.
  • Patent number: 10029206
    Abstract: Method and apparatus for separating a target substance from a fluid or mixture. Capsules having a coating and stripping solvents encapsulated in the capsules are provided. The coating is permeable to the target substance. The capsules having a coating and stripping solvents encapsulated in the capsules are exposed to the fluid or mixture. The target substance migrates through the coating and is taken up by the stripping solvents. The target substance is separated from the fluid or mixture by driving off the target substance from the capsules.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: July 24, 2018
    Assignees: Lawrence Livermore National Security, LLC, The Board of Trustees of the University of Illinois
    Inventors: Roger D. Aines, Christopher M. Spadaccini, Joshuah K. Stolaroff, William L. Bourcier, Jennifer A. Lewis, Eric B. Duoss, John J. Vericella
  • Patent number: 9999852
    Abstract: A method for removing SOx from a gas by using a compound alcohol-amine solution is provided. The compound alcohol-amine solution is made by mixing ethylene glycol and/or polyethylene glycol with hydroxyl and/or carboxyl organic compound having basic group containing nitrogen. The compound alcohol-amine solution is contacted with the gas containing SOx to absorb the SOx in the gas, wherein x=2 and/or 3. The compound alcohol-amine solution with absorbed SOx is regenerated by one or more of heating method, vacuum method, gas stripping method, ultrasonic method, microwave method, and radiation method to release by-products of sulfur dioxide and sulfur trioxide, and the regenerated compound alcohol-amine solution is recycled for use. This method can be used for removing SOx from flue gas, burning gas, coke-oven gas, synthesis waste gas from dyestuff plants, sewage gas from chemical fiber plants, and other industrial raw material gases or waste gases containing SOx.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: June 19, 2018
    Assignees: BEIJING BOYUAN HENGSHENG HIGH-TECHNOLOGY CO., LTD, YONGFENG BOYUAN INDUSTRY CO. LTD., JIANGXI PROVINCE, PEKING UNIVERSITY
    Inventors: Xionghui Wei, Meihua Zou, Shaoyang Sun, Yong Sun, Jiaxu Liu, Jun Wang, Jianbai Xiao, Lifang Li, Li Chen, Chun Hu, Xiangbin Li, Mingjin Wan
  • Patent number: 9937462
    Abstract: The present invention relates to an aqueous alkanolamine solution for the removal of hydrogen sulfide from gaseous mixtures containing hydrogen sulfide. The aqueous alkanolamine solution comprises (i) an amino compound with the formula: R1R2NCH2CH(OH)CH2OH wherein R1 and R2 independently represent lower alkyl groups of 1 to 3 carbon atoms, (ii) piperazine, and (iii) optionally a physical solvent, wherein said solution does not contain a strong acid. Further, the present invention relates to a process for removing hydrogen sulfide from a gaseous mixture containing hydrogen sulfide, and additionally other acid gases, if present, for example carbon dioxide, comprising the step of contacting the gaseous mixture contain hydrogen sulfide with the aqueous alkanolamine solution, preferably wherein the temperature of the aqueous alkanolamine solution is equal to or greater than 140° F. Examples of the gaseous mixtures include natural gas, synthesis gas, tail gas, and refinery gas.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: April 10, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Christophe R. Laroche, Gerardo Padilla, Timothy D. Halnon
  • Patent number: 9902914
    Abstract: Plants, processes, and methods for reducing the H2S and CO2 contents of shale gasses from fields that produce shale gasses having varying H2S and CO2 contents are provided. Acid gas enters an absorber and is scrubbed using a lean physical solvent, producing a treated gas and a rich physical solvent. The H2S content of the treated gas is further reduced in an amine absorber, producing a pipeline gas and a semi-lean amine. The pipeline gas contains lower levels of H2S and CO2 than gas produced using a polishing bed. A physical solvent regeneration unit regenerates the lean physical solvent from the rich physical solvent for feeding into the absorption unit. An amine regeneration unit regenerates the lean amine from the semi-lean amine for feeding into the amine absorber. Contemplated plants may further comprise a Claus Unit or a Redox unit for oxidizing H2S to elemental sulfur.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: February 27, 2018
    Assignee: Fluor Technologies Corporation
    Inventor: John Mak
  • Patent number: 9731974
    Abstract: The invention concerns a method for treating a hydrocarbon feed gas stream containing at least CO2 and H2S to recover a high quality purified CO2 gas stream, comprising a. Separating said hydrocarbon feed gas stream into a sweetened hydrocarbon gas stream, and an acid gas stream; b. Introducing said gas stream into a Claus unit, c. Introducing the tail gas into a hydrogenation reactor and then into a quench contactor of the Tail Gas Treatment Unit (TGTU); d. Contacting said tail gas stream with a non-selective amine-based solvent into a non-selective acid gas absorption unit of the TGTU; e. Sending the off gas to an incinerator; f. Contacting said enriched gas stream (vii) with a selective H2S-absorption solvent into a selective H2S-absorption unit thereby recovering a highly purified CO2 gas stream and a H2S-enriched gas stream, as well as the device for carrying said method.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: August 15, 2017
    Assignee: TOTAL SA
    Inventors: Claire Weiss, Kamlesh Ghodasara, Bassame Derriche
  • Patent number: 9707511
    Abstract: The present description is related to the field of hydrocarbon production by gasification of carbonaceous material. It provides a two-stage gas washing method as a part of gas refining. More specifically it discloses a method for hydrogen sulfide and carbon dioxide removal from synthesis gas produced by gasification. It introduces a use of a novel combination of wash approaches for this application. As a specific application, this process is utilized as a part of biomass to liquid (BTL) process.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: July 18, 2017
    Assignee: NESTE OYJ
    Inventors: Jan Wahlström, Juhani Aittamaa, Isto Eilos
  • Patent number: 9657248
    Abstract: Certain exemplary embodiments can provide a system, machine, device, manufacture, circuit, composition of matter, and/or user interface adapted for and/or resulting from, and/or a method and/or machine-readable medium comprising machine-implementable instructions for, activities that can comprise and/or relate to, reacting reactants comprising a ferric/ferrous chelate and a sour gas stream.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: May 23, 2017
    Assignee: BioSystems Consulting, Inc.
    Inventor: Henry Wilmore Cox, Jr.
  • Patent number: 9592494
    Abstract: This invention relates to a method for the preparation of a hydrocarbon synthesis catalyst material, in the form of a hydrocarbon synthesis catalyst precursor and/or catalyst, preferably, a Fischer Tropsch synthesis catalyst precursor and/or catalyst. The invention also extends to the use of a catalyst precursor and/or catalyst prepared by the method according to the invention in a hydrocarbon synthesis process, preferably, a Fischer Tropsch synthesis process. According to this invention, a method for the preparation of a hydrocarbon synthesis catalyst material includes the steps of treating Fe(II) carboxylate in solution with an oxidizing agent to convert it to Fe(III) carboxylate in solution under conditions which ensure that such oxidation does not take place simultaneously with any dissolution of Fe(0); and hydrolyzing the Fe(III) carboxylate solution resulting from step (iii) and precipitating one or more Fe(III) hydrolysis products.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: March 14, 2017
    Assignee: Sasol Technology (PTY) Limited
    Inventors: Jan Mattheus Botha, Alta Carina Ferreira, Jan Petrus Karel Reynhardt, Cathrin Alexandra Welker-Nieuwoudt
  • Patent number: 9585910
    Abstract: Polymeric compounds containing polymer backbones functionalized with ion-specific recognition elements and methods for the use of these compounds are described herein. The polymeric compounds may contain multiple types of ion-specific recognition elements depending on a specific application. The polymeric compounds can be used to remove ionic species from a solution, for example, in separations applications in which a single or multiple types of ionic species are desired to be removed from the solution.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: March 7, 2017
    Assignee: Board of Regents, The University of Texas System
    Inventors: Jonathan L. Sessler, Christopher W. Bielawski, Abdullah Aydogan, Daniel J. Coady
  • Patent number: 9587181
    Abstract: The use of a composition including a transition metal salt and at least one water-soluble aldehyde or water-soluble aldehyde precursor scavenges H2S that is present in aqueous fluids (e.g. produced water liquid streams), natural gas and in oil and mixtures thereof (e.g. mixed production streams that contain all three phases) better than either component when used alone. The resulting scavenger combination significantly increases the reaction rate and the overall scavenging efficiency, i.e. capacity over the case where each component is used alone, in the same total amount. Non-limiting examples of the metal salt include zinc or iron carboxylates, and a non-limiting example of a water-soluble aldehyde or water-soluble aldehyde precursor is ethylene glycol hemiformal.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: March 7, 2017
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Scott E. Lehrer, Vladimir Jovancicevic, Sunder Ramachandran
  • Patent number: 9555361
    Abstract: A method of capturing carbon dioxide, the method comprising the steps of: (a) providing a cellulosic material which carries an amino compound; and (b) contacting the cellulosic material with a composition comprising carbon dioxide; wherein a portion of the heat energy produced in step (b) is captured.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: January 31, 2017
    Assignee: CCM Research Limited
    Inventor: Peter Hammond
  • Patent number: 9550685
    Abstract: Disclosed herein are an apparatus and a process that can be used to remove sulfur dioxide other environmentally hazardous contaminants from a gaseous waste stream while at the same time providing a source of purified water. The process can be used for the desalination of sea or brackish water, or for the concentration of contaminated waste water. The method comprises feeding a gaseous waste stream that comprises sulfur dioxide into a diffusion tower. Feed water is sprayed onto a packing material in the diffusion tower to form a thin film of feed water on a surface of the packing material. Sulfur dioxide diffuses into the thin film of feed water to form water that contains sulfur dioxide. The gaseous waste stream is simultaneously humidified. The humidified gaseous waste stream is then subjected to direct contact condensation to obtain purified water.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: January 24, 2017
    Assignees: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC., ALCOA INC.
    Inventors: James Frederick Klausner, Renwei Mei, Srinivas S. Garimella, Donald P. Ziegler
  • Patent number: 9545597
    Abstract: The invention relates to a process for separation or purification of gaseous streams by removal of acid gases using a liquid amine solution. The process involves the steps of —contacting the gaseous stream with liquid lean amine solution in at least one continuous flow stirred-tank reactor (10; 10a, 10b; 10c); —removing a sweetened gaseous flow from said continuous flow stirred-tank reactor (10); —removing rich amine from said continuous flow stirred-tank reactor (10; 10a, 10b; 10c) for regeneration; —passing rich amine solution through at least one flash tank stripper 20; 20a, 20b; 20c; —removing acid gases and vapor from said flash tank stripper 20; 20a, 20b; 20c; —removing lean amine from said flash tank stripper for recirculation to said continuous flow stirred-tank reactor (10; 10a, 10b; 10c).
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: January 17, 2017
    Assignee: STATOIL PETROLEUM AS
    Inventors: John Arild Svendsen, Steinar Pedersen, Berit F. Fostås
  • Patent number: 9469539
    Abstract: The invention relates to a method for carbonizing carbon dioxide, comprising the step of contacting carbon dioxide with a solution of chelating agent or a solution of substance which exhibits chelating properties under dynamic conditions to generate oxygen and carbon particles. The method of the invention is significantly more economical and convenient and do not cause harm to the environments. The invention also exhibits a novel and unique feature that elemental carbon and oxygen are generated as final products under normal room temperature and atmosphere, and the carbon can be recovered as an energy source.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: October 18, 2016
    Assignee: ECOSPEC GLOBAL TECHNOLOGY PTE LTD.
    Inventor: Hwee Hong Chew
  • Patent number: 9358497
    Abstract: An ionic liquid solvent and gas purification method using the same are provided. The ionic liquid solvent consists of a main absorbent, a regulator for the main absorbent, an auxiliary absorbent, an activator, an antioxidant and water. The ionic liquid involves a low synthetic cost, low viscosity and high absorption capacity, and can be easily regenerated and recycled. The method, compared with traditional processes, has advantages such as a greater absorption capability and lower operation cost.
    Type: Grant
    Filed: September 26, 2010
    Date of Patent: June 7, 2016
    Assignee: Institute of Process Engineering, Chinese Academy of Sciences
    Inventors: Xiangping Zhang, Yansong Zhao, Shaojuan Zeng, Suojiang Zhang, Haifeng Dong, Yingpeng Zhen, Lei Huang
  • Patent number: 9186616
    Abstract: Ionic liquids containing a cation with a potentially nucleophilic carbon atom bearing a relatively acidic hydrogen atom bonded to a potentially nucleophilic carbon atom, typically in the conjugated —NC(H)N— structure or a —NC(H)S— structure of imidazolium, imidazolidinium or thiazolium salts, can be capable of acting as sorbents for CO2 in cyclic separation processes. The ionic liquid may be used on its own, mixed with a solvent, preferably an aprotic, polar, non-aqueous solvent such as toluene, DMSO, NMP or sulfolane, or in conjunction with a non-nucleophilic nitrogenous base promoter compound having a pKa of at least 10.0 such as a carboxamidine or a guanidine.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: November 17, 2015
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Lisa S. Baugh, Pavel Kortunov, Michael Siskin
  • Patent number: 9186618
    Abstract: Ionic liquids are capable of acting as solvents for amine CO2 absorbent compounds in CO2 separation processes and when so used enhance the sorption of the CO2 by the amine. A cyclic sorption process for separating CO2 from a gas stream, such as flue gas or natural gas, brings the gas stream into contact with an absorbent solution of an amine CO2 sorbent in an ionic liquid solvent followed by desorbing the CO2 to regenerate the amine.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: November 17, 2015
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Lisa S. Baugh, Pavel Kortunov, David C. Calabro, Michael Siskin
  • Patent number: 9080930
    Abstract: The invention provides a method for sampling gas in a flue gas stream (31) of an incineration furnace (1) or another CO2-containing gas stream. The method comprises sampling CO2 from the flue gas stream (31) of the incineration furnace (1) and storing CO2 from the flue gas stream (31) in a storage device (5). The storage device comprises a solid, preferably silica- or alumina-based CO2 storage material, which can be regenerated. The method further preferably involves transporting the storage device (5) to an analysis site (10) comprising an apparatus for 14C analysis, retrieving at least part of th stored CO2 from the storage device (5) and determining, based on the 14C analysis, the ratio of biomass-derived and fossil-derived CO2 in the flue gas stream (31).
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: July 14, 2015
    Assignee: Stichting Energieonderzoek Centrum Nederland
    Inventors: Fredericus Petrus Bakker, Jacobus Wilhelmus Hooijmans, Pieter Sebastiaan Wardenaar
  • Patent number: 9017455
    Abstract: This invention relates to sulfur based compounds useful in methods of carbon dioxide or sulfur dioxide removal.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: April 28, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventor: Mark A. Scialdone
  • Publication number: 20150093313
    Abstract: The invention comprises a process for removal of hydrogen sulfide from gaseous mixtures. The process involves the use of a mixture of a physical absorption solvent and an ionic liquid. The mixtures provided improved absorption of hydrogen sulfide, when compared to physical absorption solvents without the ionic liquid at low partial pressures of hydrogen sulfide. A regeneration cycle involving the addition of a solvent, such as water, is used to regenerate the mixture.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: UOP LLC
    Inventors: Erin M. Broderick, Alakananda Bhattacharyya, Beckay J. Mezza
  • Publication number: 20150050203
    Abstract: A system, method, and material that enables the pressure-activated reversible chemical capture of acid gasses such as CO2 from gas volumes such as streams, flows or any other volume. Once the acid gas is chemically captured, the resulting product typically a zwitterionic salt, can be subjected to a reduced pressure whereupon the resulting product will release the captures acid gas and the capture material will be regenerated. The invention includes this process as well as the materials and systems for carrying out and enabling this process.
    Type: Application
    Filed: October 17, 2014
    Publication date: February 19, 2015
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: David J. Heldebrant, Phillip K. Koech, John C. Linehan, James E. Rainbolt, Mark D. Bearden, Feng Zheng
  • Publication number: 20150037274
    Abstract: A highy alkalized humic and fulvic filter reagent for the removal of multiple contaminants from a gas is provided. The contaminants removed from the gas stream may include, but are not limited to, Carbon Dioxide, Sulfur Oxide, Nitrogen Oxides, Hydrogen Sulfides, radionuclides, mercaptans, ammonia, toxic metals, particulates, volatile vapors, and organics. The present invention further includes the disposal of the filter reagent by way of using the highly alkalized humic and fulvic filter for soil fertility, releasing the carbon dioxide from the filter reagent , converting the liquid filter reagent into a solid for disposal or for use as a contaminant removal filter for waters, wastes, and chemicals.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Applicant: ARCTECH, INC.
    Inventors: Daman S. Walia, Ashok T. Jain, Shinwoo Lee
  • Publication number: 20150004084
    Abstract: Methods and systems for capturing and storing atmospheric carbon dioxide are disclosed. In some embodiments, the methods systems include the following: capturing carbon dioxide from atmospheric air using a reusable filter device; collecting and storing carbon dioxide captured by the filter device in a sub-ocean reservoir; regenerating the reusable filter device, which includes collecting the carbon dioxide captured by the reusable filter device; and generating a renewable energy using a renewable energy source for use in the method. The reusable filter device, the renewable energy source, and the sub-ocean reservoir are substantially co-located.
    Type: Application
    Filed: January 4, 2013
    Publication date: January 1, 2015
    Inventor: David S. Goldberg
  • Publication number: 20150001132
    Abstract: Disclosed herein are scavenging compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as scavengers, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.
    Type: Application
    Filed: June 25, 2014
    Publication date: January 1, 2015
    Inventors: Jennifer L. Sorrells, Nestor U. Soriano, JR.
  • Patent number: 8920541
    Abstract: A method is provided for replacing at least a portion of the organic linker content of a zeolitic imidazolate framework composition. The method comprises exchanging the organic linker with another organic linker. Also provided is a new material, designated as EMM-19, and a method of using EMM-19 to adsorb gases, such as carbon dioxide.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 30, 2014
    Assignee: ExxonMobile Research and Engineering Company
    Inventors: Zheng Ni, Mobae Afeworki, Simon Christopher Weston, John Zengel, David Lawrence Stern
  • Publication number: 20140371478
    Abstract: A method for reversible capture and release of carbon dioxide comprises the steps of providing a solution of a defined tetranuclear complex or mixture thereof, in which absorption sites are provided by coordinated solvent molecules such as water molecules. The solution is exposed to the atmosphere or to a gas stream containing carbon dioxide to sequester carbon dioxide, and the pH of the resultant reaction mixture is adjusted to facilitate the release of carbon dioxide.
    Type: Application
    Filed: November 15, 2012
    Publication date: December 18, 2014
    Inventors: Wolfgang Schmitt, Annmarie O'toole
  • Patent number: 8906135
    Abstract: A method for separating a target gas from a gaseous mixture using 1,2,3-triazolium ionic liquids is presented. Industrial effluent streams may be cleaned by removing carbon dioxide from the stream by contacting the effluent stream with a 1,2,3-triazolium ionic liquid compound.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: December 9, 2014
    Assignee: U.S. Department of Energy
    Inventors: David Luebke, Hunald Nulwala, Chau Tang
  • Patent number: 8894954
    Abstract: The present invention provides a process for removing mercaptans from a gas stream gas stream, comprising the steps: a) providing a first mercaptan-comprising gas stream comprising at least a mercaptan of the general formula: R1—SH, wherein R1 is an alkyl group comprising 1 to 4 carbon atoms; and b) contacting the mercaptan-comprising gas stream with an absorption medium comprising a substituted disulphide and a nitrogen-containing base to obtain a second mercaptan-depleted gas stream, wherein: the substituted disulphide is of the general formula R2—SS—R3 wherein: R2 and R3 are carbon comprising substituents of which the corresponding R2—SH and R3—SH thiols have a vapor pressure below the vapor pressure of any R1—SH thiol.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: November 25, 2014
    Assignee: Shell Oil Company
    Inventors: Jozef Jacobus Titus Smits, Sipke Hidde Wadman
  • Patent number: 8894953
    Abstract: Disclosed is a method for recovering carbon dioxide from exhaust gas, more particularly, a method for recovering carbon dioxide from exhaust gas for saving the cost for recovery of carbon dioxide by decreasing energy required for recycling a carbon dioxide absorbent solution. In particular, a circulating solvent, whose heat of vaporization and/or sensible heat is lower than that of a solvent of an absorbent solution introduced to a recycling tower, is supplied to the lower portion of the recycling tower and mixed with the heated absorbent solution. As a result, the pressure inside the recycling tower is maintained so that carbon dioxide released from the absorbent solution is discharged to a storage tank/drum.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: November 25, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung Yeup Chung, Yoon Ji Lee, Sang Jin Park, Ki Chun Lee
  • Patent number: 8894955
    Abstract: The present invention provides a process for removing mercaptans from a gas stream. In the process, a first mercaptan-comprising gas stream comprising at least a mercaptan of the general formula: R1—SH, wherein R1 is an alkyl group comprising 1 to 4 carbon atoms, and an acid component is contacted with an absorption medium to obtain a mercaptan-depleted gas stream. The absorption medium includes a substituted disulphide and a base. The substituted disulphide is of the general formula R2—SS—R3, wherein R2 and R3 are carbon comprising substituents of which the corresponding R2—SH and R3—SH thiols have a vapor pressure below the vapor pressure of any R1—SH thiol, and at least one of R2 and R3 is an electron withdrawing group.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: November 25, 2014
    Assignee: Shell Oil Cpmpany
    Inventors: Jozef Jacobus Titus Smits, Sipke Hidde Wadman
  • Patent number: 8883036
    Abstract: A process for the production of a H2S-enriched H2 gas stream without the need for H2S compression is disclosed. A slip stream of rich amine from a hydroprocessing unit is reduced in pressure and stripped with a hydrogen-containing gas. The H2S content of the resulting gas stream can be readily controlled by adjusting the stripping pressure and/or hydrogen rate. The H2S-enriched H2 gas stream is suitable for the sulfidation of catalytically active metals.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: November 11, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventor: Bruce Edward Reynolds
  • Patent number: 8858906
    Abstract: The invention provides a process for the removal of CO2 from a gas, the process comprising the steps of: (a) removing CO2 from the gas by contacting the gas with absorbing liquid in an absorber to obtain absorbing liquid enriched in CO2 and a purified gas; (b) heating absorbing liquid enriched in CO2 (c) contacting heated absorbing liquid enriched in CO2 with a stripping gas at elevated temperature in a regenerator to obtain regenerated absorbing liquid and a hot gas stream enriched in CO2 wherein at least part of the absorbing liquid enriched in CO2 is heated through external heat exchange with the hot gas stream enriched in CO2.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: October 14, 2014
    Assignee: Shell Oil Company
    Inventors: Ayhan Eksilioglu, Frank Haiko Geuzebroek
  • Publication number: 20140294708
    Abstract: The present invention provides a process for removing mercaptans from a gas stream gas stream, comprising the steps: a) providing a first mercaptan-comprising gas stream comprising at least a mercaptan of the general formula: R1—SH, wherein R1 is an alkyl group comprising 1 to 4 carbon atoms; and b) contacting the mercaptan-comprising gas stream with an absorption medium comprising a substituted disulphide and a nitrogen-containing base to obtain a second mercaptan-depleted gas stream, wherein: the substituted disulphide is of the general formula R2—SS—R3 wherein: R2 and R3 are carbon comprising substituents of which the corresponding R2—SH and R3—SH thiols have a vapour pressure below the vapour pressure of any R1—SH thiol.
    Type: Application
    Filed: November 30, 2011
    Publication date: October 2, 2014
    Inventors: Jozef Jacobus Titus Smits, Sipke Hidde Wadman
  • Patent number: RE45309
    Abstract: Systems and methods of capturing and sequestering carbon dioxide, comprising mixing a substantially non-aqueous solvent and an alkali such that the solvent and alkali form a solvent suspension, mixing water and a flue gas containing carbon dioxide with the solvent suspension such that a reaction occurs, the reaction resulting in the formation of a carbonate, water and heat.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: December 30, 2014
    Assignee: Expansion Energy LLC
    Inventor: David Vandor