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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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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：US11046897B2
公开(公告)日：2021-06-29
申请号：US16415033
申请日：2019-05-17
Applicant: ExxonMobil Research and Engineering Company
Inventor： Chuansheng Bai , Majosefina Cunningham , Gregory R. Johnson , Wenyih F. Lai , Brandon J. O'Neill
Abstract: Methods are provided for performing selective hydrodesulfurization on a naphtha boiling range stream naphtha boiling range portion of a feed. It has been unexpectedly discovered that hydrodesulfurization with improved octane retention can be performed by using a catalyst that comprises CoMo supported on a catalyst support that includes a zeotype framework. By using a catalyst support including a zeotype framework, an unexpectedly high amount of octane in the naphtha boiling range portion of the hydrodesulfurized effluent is maintained.
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公开(公告)号：US20210046470A1
公开(公告)日：2021-02-18
申请号：US16947706
申请日：2020-08-13
Applicant: ExxonMobil Research and Engineering Company
Inventor： Chuansheng Bai , Majosefina Cunningham , Jihad M. Daaka , Preeti Kamakoti , Aruna Ramkrishnan , Anjaneya S. Kovvali , Anita S. Lee
IPC: B01J37/08 , B01J37/02 , B01J37/04 , B01J23/80 , B01J33/00 , B01J21/18 , B01J29/40 , B01J37/10 , C07C41/01
Abstract: A method of producing bifunctional catalyst systems that include a carbon-coated metal catalyst may comprise: coating a metal catalyst particle with a carbon-containing small molecule to produce a coated metal catalyst particle; carbonizing the carbon-containing small molecule on the coated metal catalyst particle to produce a carbon-coated metal catalyst particle; and mixing the carbon-coated metal catalyst particle with an acid catalyst particle to produce an acid/metal bifunctional catalyst system. Further, a method of producing bifunctional catalyst systems that include a carbon-coated acid catalyst may be similarly performed by coating a metal catalyst particle with a carbon-containing small molecule to produce a coated metal catalyst particle; carbonizing the carbon-containing small molecule on the coated metal catalyst particle to produce a carbon-coated metal catalyst particle; and mixing the carbon-coated metal catalyst particle with an acid catalyst particle to produce an acid/metal bifunctional catalyst system.
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公开(公告)号：US20210046460A1
公开(公告)日：2021-02-18
申请号：US16947699
申请日：2020-08-13
Applicant: ExxonMobil Research and Engineering Company
Inventor： Chuansheng Bai , Majosefina Cunningham , Jihad M. Daaka , Preeti Kamakoti , Aruna Ramkrishnan
IPC: B01J23/80 , B01J37/04 , B01J37/03 , B01J37/08 , B01J37/06 , B01J37/02 , B01J37/00 , B01J37/18 , B01J35/02 , B01J35/00 , B01J35/10 , C07C41/01
Abstract: Methods of producing metal catalysts can include mixing two or more metal salts and an aluminum salt in water to produce a metal catalyst precursor solution having a pH of about 2.5 to about 4.0; mixing the metal catalyst precursor solution and a basic solution having a pH of about 10 to about 13 to produce a mixture with a pH of about 6 to about 7 and a precipitate; producing a powder from the precipitate; and calcining the powder to produce a metal catalyst. Such metal catalysts may be useful in producing bifunctional catalyst systems that are useful in, among other things, converting syngas to dimethyl ether in a single reactor.
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Patent Agency Ranking
公开(公告)号：US10919830B2
公开(公告)日：2021-02-16
申请号：US16738624
申请日：2020-01-09
Applicant: ExxonMobil Research and Engineering Company
Inventor： Jihad M. Dakka , Michael J. Sikorsky , Aruna Ramkrishnan , Chuansheng Bai , Anita S. Lee , Preeti Kamakoti , Anjaneya S. Kovvali , Jenna L. Walp
IPC: C07C41/09 , C07C29/00 , C07C31/00 , C07C43/00 , B01J8/00 , B01J8/02 , C07C29/153 , B01J20/02 , B01J21/04 , B01J23/80 , C07C31/04 , C07C43/04
Abstract: Systems and methods are provided for conversion of gas phase reactants including CO and H2 to C2+ products using multiple catalysts in a single reactor while reducing or minimizing deactivation of the catalysts. Separate catalysts can be used that correspond to a first catalyst, such as a catalyst for synthesis of methanol from synthesis gas, and a second catalyst, such as a catalyst for conversion of methanol to a desired C2+ product. The separate catalysts can be loaded into the reactor in distinct layers that are separated by spacer layers. The spacer layers can correspond to relatively inert particles, such as silica particles. Optionally, the spacer layer can include an adsorbent, such as boron supported on alumina or boron carbide particles. The adsorbent can be suitable for selective adsorption of the one or more reaction products (such as one or more reaction by-products), to allow for further reduction or minimization of the deactivation of the conversion catalysts.
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公开(公告)号：US20200215521A1
公开(公告)日：2020-07-09
申请号：US16637892
申请日：2018-08-30
Applicant: ExxonMobil Research and Engineering Company
Inventor： Wenyih Frank Lai , Paul Podsiadlo , Chuansheng Bai , William W. Lonergan , Louis F. Burns , Stephen J. McCarthy , Nicholas S. Rollman
Abstract: A method for making catalyst materials is disclosed in which active metal ingredients of the final catalyst are added to a mixture for extruding the catalyst material that includes a binder, one or more precursors of one or more base metals and/or one or more noble metals, and a crystal of a zeolite. The extruded catalyst material is then pre-calcined and ion-exchanged and then a final calcining step is applied. The catalyst materials made by such a method are also disclosed as is a method for treating a hydrocarbon stream using the catalysts.
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公开(公告)号：US09504955B2
公开(公告)日：2016-11-29
申请号：US14325637
申请日：2014-07-08
Inventor： Jeannine Elizabeth Elliott , Robert James Copeland , Daniel P. Leta , Patrick P. McCall , Chuansheng Bai , Bruce A. DeRites
CPC classification number: B01D53/06 , B01D53/08 , B01D2251/30 , B01D2251/40 , B01D2253/104 , B01D2253/1122 , B01D2257/504 , B01D2258/0283 , B01D2259/40086 , B01D2259/4009 , B01D2259/402 , B01D2259/4065 , Y02C10/04 , Y02C10/08
Abstract: A process for separating a carbon dioxide from a gas stream is disclosed. The process can include passing the gas stream over a sorbent that adsorbs the carbon dioxide by concentration swing adsorption and adsorptive displacement. The sorbent can be regenerated and the carbon dioxide recaptured by desorbing the carbon dioxide from the sorbent using concentration swing adsorption and desorptive displacement. A carbon dioxide separation system is also disclosed. Neither the system nor the process rely on temperature swing or pressure swing adsorption.
Abstract translation: 公开了一种从气流中分离二氧化碳的方法。 该方法可以包括使气流通过吸附剂吸附二氧化碳，通过浓缩变化吸附和吸附位移。 吸附剂可以再生，二氧化碳通过使用浓度变化吸附和解吸位移从吸附剂中解吸二氧化碳而重新捕获。 还公开了二氧化碳分离系统。 系统和过程都不依赖于温度摆动或变压吸附。
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19.发明申请COMPOSITIONS FOR CARBON DIOXIDE SEPARATION USING STEAM REGENERATION, AND METHOD FOR PREPARING SAME 审中-公开使用蒸汽再生的二氧化碳分离组合物及其制备方法公开(公告)号：US20150008366A1
公开(公告)日：2015-01-08
申请号：US14325654
申请日：2014-07-08
Inventor： Jeannine Elizabeth Elliott , Robert James Copeland , Margarita Dubovik , Daniel P. Leta , Patrick P. McCall , Chuansheng Bai , Bruce A. DeRites
CPC classification number: B01J20/043 , B01J20/041 , B01J20/08 , B01J20/20 , B01J20/3204 , B01J20/3236 , B01J20/3466 , B01J20/3483 , B01J20/3491 , B01J2220/603 , B01J2220/606 , Y02C10/08
Abstract: Compositions and methods of preparing the compositions are disclosed for sorbents and other surfaces that can adsorb and desorb carbon dioxide. A sorbent or surface can include a metal compound such as an alkali or alkaline earth compound and a support. The sorbent can be prepared by several methods, including an incipient wetness technique. The sorbents have a CO2 adsorption and desorption profile. A sorbent having high levels of a metal compound and adsorbed CO2 is disclosed.
Abstract translation: 公开了用于吸附和解吸二氧化碳的吸附剂和其它表面的组合物和制备组合物的方法。 吸附剂或表面可以包括金属化合物，例如碱金属或碱土金属化合物和载体。 吸附剂可以通过几种方法制备，包括初始润湿技术。 吸附剂具有CO2吸附和解吸附性。 公开了具有高水平的金属化合物和吸附的CO 2的吸附剂。
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公开(公告)号：US20210046462A1
公开(公告)日：2021-02-18
申请号：US16993219
申请日：2020-08-13
Applicant: ExxonMobil Research and Engineering Company
Inventor： Chuansheng Bai , Majosefina Cunningham , Jihad M. Daaka , Preeti Kamakoti , Aruna Ramkrishnan , Anjaneya S. Kovvali , Anita S. Lee
IPC: B01J23/80 , B01J21/04 , B01J29/46 , B01J27/188 , B01J27/19 , B01J35/02 , B01J35/10 , B01J37/04 , B01J37/08 , B01J37/10 , B01J37/00 , B01J37/18 , C07C41/01
Abstract: A method of producing a acid/metal bifunctional catalyst may include: mixing an acid catalyst, a metal catalyst, and a fluid to produce a slurry, wherein the acid catalyst is present at 50 wt % or less relative to a total catalyst weight in the slurry; heating the slurry; producing a powder from the slurry; and calcining the powder to produce the acid/metal bifunctional catalyst. Such acid/metal bifunctional catalyst would be useful in the direct conversion of syngas to dimethyl ether as well as other reactions.
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