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1.发明授权公开(公告)号：US10350538B2
公开(公告)日：2019-07-16
申请号：US15653833
申请日：2017-07-19
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , Hans Thomann , David C. Calabro , Frank Mittricker
IPC: B01D53/047 , B01D53/053 , C01B3/56 , C01B32/50
Abstract: In various aspects, methods are provided for hydrogen production while reducing and/or mitigating emissions during various refinery processes that produce syngas, such as power generation. Syngas can be effectively separated to generate high purity carbon dioxide and hydrogen streams, while reducing and/or minimizing the energy required for the separation, and without needing to reduce the temperature of the flue gas. In various aspects, the operating conditions, such as high temperature, mixed metal oxide adsorbents, and cycle variations, for a pressure swing adsorption reactor can be selected to minimize energy penalties while still effectively capturing the CO2 present in syngas.
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公开(公告)号：US09968882B2
公开(公告)日：2018-05-15
申请号：US15274382
申请日：2016-09-23
Applicant: ExxonMobil Research and Engineering Company
Inventor： Simon C. Weston , Mobae Afeworki , Bhupender S. Minhas , Ramesh Gupta , Hugo S. Caram , Manoj K. Chaudhury , Hans Thomann , Hilda B. Vroman , Meghan Nines
CPC classification number: B01D53/0462 , B01D53/0423 , B01D53/0446 , B01D53/1475 , B01D2253/108 , B01D2253/204 , B01D2253/25 , B01D2257/504 , B01J20/18 , B01J20/22 , B01J20/226 , B01J20/262 , B01J20/3204 , B01J20/3206 , B01J20/3214 , B01J20/3246 , B01J20/3272 , Y02C10/08
Abstract: A heat transfer fluid can be used as part of a multi-phase adsorption environment to allow for improved separations of gas components using a solid adsorbent. The heat transfer fluid can reduce or minimize the temperature increase of the solid adsorbent that occurs during an adsorption cycle. Reducing or minimizing such a temperature increase can enhance the working capacity for an adsorbent and/or enable the use of adsorbents that are not practical for commercial scale adsorption using conventional adsorption methods. The multi-phase adsorption environment can correspond to a trickle bed environment, a slurry environment, or another convenient environment where at least a partial liquid phase of a heat transfer fluid is present during gas adsorption by a solid adsorbent.
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公开(公告)号：US20210268474A1
公开(公告)日：2021-09-02
申请号：US17316713
申请日：2021-05-11
Inventor： Chuansheng Bai , Majosefina Cunningham , Patrick P. McCall , Hans Thomann , Jeannine Elizabeth Elliott , Vinh Nguyen
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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公开(公告)号：US10029205B2
公开(公告)日：2018-07-24
申请号：US15258076
申请日：2016-09-07
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , Hans Thomann
Abstract: In various aspects, apparatuses, systems, and methods are provided for performing two stage separation of CO2 from a gaseous stream. The first stage adsorbent can be comprised of a plurality of cylindrical or substantially cylindrical rings. The first stage adsorbent can be comprised of a metal organic framework. The second stage adsorbent can be subject to a displacement desorption process. The second stage adsorbent can be comprised of a support and a metal compound selected from the group consisting of alkali or alkaline earth. The first and second stage adsorbent can be arranged concentrically for space and efficiency considerations.
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公开(公告)号：US10016716B2
公开(公告)日：2018-07-10
申请号：US15258097
申请日：2016-09-07
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , Hans Thomann
IPC: B01D53/047 , B01D53/04 , B01J20/34
CPC classification number: B01D53/0462 , B01D53/0407 , B01D53/047 , B01D2259/40011 , B01D2259/40083 , B01J20/34 , B01J20/3441
Abstract: Systems and methods are provided for performing a swing adsorption process, such as a temperature swing adsorption process. During portions of a swing cycle where one or more components are being desorbed, a vibration or other perturbation can be induced in the adsorbent and/or in the adsorbent structure to assist with desorption. Inducing a vibration or other perturbation in the adsorbent structure can provide a way to introduce additional energy into the adsorbent system without having to increase the temperature of the adsorbent structure.
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Patent Agency Ranking
公开(公告)号：US11198109B2
公开(公告)日：2021-12-14
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
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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公开(公告)号：US10814288B2
公开(公告)日：2020-10-27
申请号：US15653853
申请日：2017-07-19
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , David C. Calabro , Hans Thomann , Randall D. Partridge
Abstract: Gas separation modules and methods for use including an integrated adsorbent and membrane. In certain refining applications, it is paramount to obtain high purity product gases. Adsorbent beds are effective at removing certain contaminants, such as CO2, from gas streams containing product and contaminant constituents to form a product-rich stream. The integrated membrane permits a further separation of products from any unadsorbed contaminant to produce a high purity product, such as hydrogen, stream. The gas separation modules described herein include stacked, radial, and spiral arrangements. Each modules includes a configuration of feed and cross-flow channels for the collection of contaminant gases and/or high purity product gases.
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公开(公告)号：US10677160B2
公开(公告)日：2020-06-09
申请号：US15273800
申请日：2016-09-23
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , Ramesh Gupta , Hans Thomann , Hugo S. Caram , Loren K. Starcher , Franklin F. Mittricker , Simon C. Weston , Scott J. Weigel
IPC: F02C3/34 , F02C6/04 , B01D53/047 , F01K17/04 , F02C9/16
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 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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公开(公告)号：US20190300801A1
公开(公告)日：2019-10-03
申请号：US16357670
申请日：2019-03-19
Applicant: ExxonMobil Research and Engineering Company
Inventor： Narasimhan Sundaram , Hans Thomann , Edward W. Corcoran, JR.
IPC: C10G59/04 , B01D53/047 , C10G25/03 , C10G35/085 , B01J20/22 , B01J20/28
Abstract: Systems and methods are provided for performing multistage naphtha reforming with intermediate separation of aromatics using a swing adsorption process. Use of a swing adsorption process can allow aromatics to be selectively removed from the intermediate reforming effluent while reducing or minimizing the energy costs for cooling and subsequent reheating of the intermediate reforming effluent. The resulting aromatics-rich stream generated from swing adsorption can have a substantially higher aromatics content than an aromatics-rich stream generated by conventional separation methods during multi-stage naphtha reforming. In some aspects, selective thermal purging (either hot or cold) can be used to further facilitate adsorption or desorption of components by the adsorbent in the swing adsorption vessel.
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公开(公告)号：US20180250654A1
公开(公告)日：2018-09-06
申请号：US15910257
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 , B01D2259/40083 , B01D2259/4009 , B01J20/08 , B01J20/3007 , B01J20/3078 , B01J20/3204 , B01J20/3236 , 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. The support can be prepared by creating and extruding a dough to create an extrudate, which is then drying and calcined to form the support. Calcination temperatures can be between about 120° C. and 500° C., preferably about 200° C. to about 400° C. 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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