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公开(公告)号：US20180250653A1
公开(公告)日：2018-09-06
申请号：US15910212
申请日：2018-03-02
Inventor： Chuansheng Bai , Majosefina Cunningham , Patrick P. McCall , Hans Thomann , Jeannine Elizabeth Elliott , Vinh Nguyen
CPC classification number: B01J20/041 , B01D53/02 , B01D2253/104 , B01D2253/106 , B01D2253/1124 , B01D2253/20 , B01D2253/25 , B01D2257/504 , B01D2258/0283 , B01D2259/40086 , B01J20/08 , B01J20/103 , B01J20/22 , B01J20/3078 , B01J20/3204 , B01J20/3234 , B01J20/3433 , B01J20/3466
Abstract: The disclosure generally relates to CCS sorbents, particularly for CO2/H2O displacement desorption process. The sorbent includes an aluminum oxide support and an alkali metal salt impregnated on the support, and a silicon modification of the sorbent to reduce water uptake by the sorbent and make it more hydrophobic. The silicon modification can be an organosilyl moiety added after the initial sorbent is complete, or a silica source added to the aluminum oxide structure, typically via impregnation. The sorbents demonstrate better H2O/CO2 ratios. Compositions and methods of making are disclosed.
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公开(公告)号：US10439242B2
公开(公告)日：2019-10-08
申请号：US15339983
申请日：2016-11-01
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , Hans Thomann , Franklin F. Mittricker , Loren Starcher
IPC: H01M8/0662 , H01M8/04089 , H01M8/0612 , B01D53/047 , C01B3/34 , H01M8/0668 , H01M8/14 , B01D53/26
Abstract: Systems and methods are provided for combined cycle power generation while reducing or mitigating emissions during power generation. Recycled exhaust gas from a molten carbonate fuel cell power generation reaction can be separated by using a swing adsorption process so as to generate a high purity CO2 stream while reducing or minimizing the energy required for the separation and without having to reduce the temperature of the exhaust gas. A high temperature adsorption reactor adsorbs the CO2 and recovers H2 from an exhaust gas of a first molten carbonate fuel cell at a high temperature and at a low pressure. The reactor passes along the adsorbed CO2 to a cathode and the recovered H2 to an anode of a second molten carbonate fuel cell for further power generation. This can allow for improved energy recovery while also generating high purity streams of CO2 and H2.
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公开(公告)号：US10350537B2
公开(公告)日：2019-07-16
申请号：US15653806
申请日：2017-07-19
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , Hans Thomann
Abstract: Methods are provided for the production of nitrogen, hydrogen, and carbon dioxide from an exhaust gas. Exhaust gas from combustion in a fuel rich (or reducing) atmosphere is primarily composed of CO2, CO, N2, H2O, and H2. CO may be converted to CO2 and H2 via the water gas shift reaction. Carbon dioxide may then be effectively separated from nitrogen and hydrogen to produce a carbon dioxide stream and a nitrogen/hydrogen stream. The nitrogen/hydrogen stream may then be effectively separated to produce a high purity nitrogen stream and a high purity hydrogen stream. The process may be done in any order, such as separating the nitrogen first or the carbon dioxide first.
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公开(公告)号：US10071338B2
公开(公告)日：2018-09-11
申请号：US15339978
申请日：2016-11-01
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , Hans Thomann , Franklin F. Mittricker , Loren Starcher
IPC: B01D53/047 , F01N13/00 , F01N3/08 , B01D53/053
CPC classification number: B01D53/047 , B01D53/053 , B01D2253/10 , B01D2253/1124 , B01D2256/10 , B01D2256/22 , B01D2257/102 , B01D2257/40 , B01D2257/504 , B01D2259/40028 , B01D2259/40043 , B01D2259/40052 , B01D2259/40056 , B01D2259/40086 , B01D2259/414 , F01N3/0857 , F01N3/0885 , F01N13/0093 , F01N13/011 , Y02C10/08
Abstract: Systems and methods for using pressure swing adsorption to separate and/or capture resulting emissions are provided. A stream of recycled exhaust gas is passed into a first swing adsorption reactor comprising a first adsorbent material which adsorbs CO2. An enriched N2 stream is recovered from a forward end of the first swing adsorption reactor. The pressure in the first swing adsorption reactor is reduced. The first swing adsorption reactor is purged with a portion of the first N2 stream recovered from the first swing adsorption reactor. The first purge output is passed to a second swing adsorption reactor comprising a second adsorbent material which adsorbs CO2. A second N2 stream is recovered from the second swing adsorption reactor. The pressure in the second swing adsorption reactor is reduced. The second swing adsorption reactor is purged with a steam purge.
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公开(公告)号：US10071337B2
公开(公告)日：2018-09-11
申请号：US15339972
申请日：2016-11-01
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , Hans Thomann , Edward W. Corcoran, Jr.
IPC: B01D53/047 , B01D53/04
CPC classification number: B01D53/047 , B01D53/0423 , B01D2253/108 , B01D2253/1124 , B01D2256/10 , B01D2256/22 , B01D2257/102 , B01D2257/504 , B01D2259/40028 , B01D2259/40043 , Y02C10/08
Abstract: Systems and methods are provided for combined cycle power generation while reducing or mitigating emissions during power generation. Recycled exhaust gas from a power generation combustion reaction can be separated using a staged complementary swing adsorption process so as to generate a high purity CO2 stream while reducing/minimizing the energy required for the separation and without having to reduce the temperature of the exhaust gas. This can allow for improved energy recovery while also generating high purity streams of carbon dioxide and nitrogen.
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Patent Agency Ranking
公开(公告)号：US20180250655A1
公开(公告)日：2018-09-06
申请号：US15910130
申请日：2018-03-02
Inventor： Chuansheng Bai , Majosefina Cunningham , Patrick P. McCall , Hans Thomann , Jeannine Elizabeth Elliott , Vinh Nguyen
CPC classification number: B01J20/08 , B01D53/02 , B01D2253/1124 , B01D2257/504 , B01D2258/0283 , B01J20/041 , B01J20/3007 , B01J20/3078 , B01J20/3204 , B01J20/3236 , Y02C10/08
Abstract: The disclosure generally relates to CCS sorbents, particularly for CO2/H2O displacement desorption process. The sorbents include an aluminum oxide support that includes alkali metal salts within the support, in the form of pseudo alkali aluminate. The sorbents also include alkali metal salt impregnated on the support. The sorbents demonstrate improved CO2 loadings and better H2O/CO2 ratios, as well as improved stability. Compositions and methods of making are disclosed.
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17.发明授权公开(公告)号：US10449479B2
公开(公告)日：2019-10-22
申请号：US15653822
申请日：2017-07-19
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , Hans Thomann , David C. Calabro , Frank Mittricker
IPC: B01D53/04 , B01D53/047
Abstract: An adsorption module and associated processes for conducting advanced separations processes such as sorption enhanced water-gas shift (SEWGS). The adsorption module contains at least one angled baffle to create at least two tapered adsorbent beds within the adsorption module. The taper is such that the adsorbent beds' cross-sections within the adsorption module decrease in the direction of feed flow, thereby taking advantage of increased product purity and process efficiency provided by tapered adsorption beds.
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公开(公告)号：US10143960B2
公开(公告)日：2018-12-04
申请号：US15339997
申请日：2016-11-01
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , Hans Thomann , Edward W. Corcoran, Jr.
IPC: B01D53/047 , B01D53/04
Abstract: A staged complementary pressure swing adsorption system and method for low energy fractionation of a mixed fluid. Two beds in a four-column PSA system are selective for component A, and another two columns are selective for component B. The cycle creates an intermittent A and B product, using the purge effluent from the complementary product fed at an intermediate pressure. This intermittent product is used as purge gas for low-pressure purged elsewhere in the cycle using appropriate storage tanks. The use of an intermediate pressure in this cycle enables continuous production of purified component A and B without the use of compressors. Columns may also be configured to enable pressure to equalize between complementary columns.
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19.发明授权公开(公告)号：US10125641B2
公开(公告)日：2018-11-13
申请号：US15339987
申请日：2016-11-01
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , Hans Thomann , Franklin F. Mittricker , Loren Starcher
Abstract: Systems and methods are provided for combined cycle power generation and enhanced hydrocarbon production where emission gases during power generation are separated by adsorption and applied to facilitate extraction of hydrocarbons from a reservoir. A power generation plant passes exhaust gas to a first swing adsorption reactor. The first swing adsorption reactor adsorbs the CO2 from the exhaust gas. An adsorption cycle of the first swing adsorption reactor is variable. An injection well injects the CO2 adsorbed by the first swing adsorption reactor in a hydrocarbon reservoir. A production well that is in communication with the injection well produces a mixture of hydrocarbons and CO2. A second swing adsorption reactor purifies the produced hydrocarbons by adsorbing the produced CO2 from the production well.
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公开(公告)号：US20180250652A1
公开(公告)日：2018-09-06
申请号：US15910159
申请日：2018-03-02
Inventor： Chuansheng Bai , Majosefina Cunningham , Patrick P. McCall , Hans Thomann , Jeannine Elizabeth Elliott , Vinh Nguyen
CPC classification number: B01J20/041 , B01D53/02 , B01D53/0462 , B01D2253/1124 , B01D2253/25 , B01D2257/504 , B01D2258/0283 , B01D2259/40086 , B01J20/08 , B01J20/3078 , B01J20/3204 , B01J20/3236 , B01J20/3433 , B01J20/3466 , Y02C10/08
Abstract: The disclosure generally relates to CCS sorbents, particularly for CO2/H2O displacement desorption process. The sorbents include an aluminum oxide support that includes two alkali metal salts impregnated on the support. The two alkali metals include a potassium metal salts and a second alkali metal salt which is not potassium. The second metal salt disrupts poisoning effects that degrade sorbent lifetime. The sorbents demonstrate improved CO2 loadings and better H2O/CO2 ratios, as well as improved stability. Compositions and methods of making are disclosed.
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