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公开(公告)号：US20200231525A1
公开(公告)日：2020-07-23
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 , B01J8/02 , B01J8/00 , C07C29/153
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：US10668463B2
公开(公告)日：2020-06-02
申请号：US15962318
申请日：2018-04-25
Applicant: ExxonMobil Research and Engineering Company
Inventor： Chuansheng Bai , Paul Podsiadlo , Stephen J. McCarthy , Kiara M Benitez
IPC: B01J38/68 , B01J29/48 , B01J38/02 , C10G45/64 , B01J29/90 , B01J37/20 , C10G45/58 , B01J37/02 , B01J31/04
Abstract: Methods for regenerating and/or rejuvenating catalysts, particularly dewaxing catalysts, as well as methods for performing dewaxing of diesel or distillate boiling range feeds with the regenerated and/or rejuvenated catalyst are provided herein. The regeneration and/or rejuvenation methods can include calcining spent catalyst followed by contacting the calcined catalyst with a solution comprising a complexing agent, which can restore hydrotreatment (HDT) activity and dewaxing activity of the spent catalyst such that it may be reused during hydroprocessing.
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公开(公告)号：US10513475B2
公开(公告)日：2019-12-24
申请号：US15839974
申请日：2017-12-13
Applicant: ExxonMobil Research and Engineering Company
Inventor： Sophie Liu , Jihad M. Dakka , Partha Nandi , Sara Yacob , Quddus A. Nizami , Chuansheng Bai
IPC: C07C2/86 , C07C2/62 , C07C29/50 , C07C1/24 , C07C31/12 , C07C31/125 , B01J29/70 , C07C5/02 , C07C29/132 , C07C2/12 , C07C5/03 , C07C5/27 , C07C407/00 , C10G45/58 , C10G50/00 , C10G69/12 , C10G3/00 , B01J29/80 , B01J29/50
Abstract: Methods and systems for converting hydrocarbons including exposing a portion of a hydroperoxide-containing feed including tert-butyl hydroperoxide to a solid deperoxidation catalyst under decomposition conditions to form an oxidation effluent comprising tert-butyl alcohol, wherein the solid deperoxidation catalyst comprises a manganese oxide octahedral molecular sieve, are provided herein. Further methods and systems for converting the oxidation effluent to an alkylation product are also provided herein.
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公开(公告)号：US10160708B2
公开(公告)日：2018-12-25
申请号：US15455181
申请日：2017-03-10
Applicant: ExxonMobil Research and Engineering Company
Inventor： Anita S. Lee , Jihad M. Dakka , Arun K. Sharma , Michel Daage , Preeti Kamakoti , Ronald Suryo , Chuansheng Bai , J. Timothy Cullinane
IPC: C07C41/09 , C07C41/01 , C01B3/34 , C07C29/151
Abstract: Integrated methods and systems are disclosed for the production of dimethyl ether. The method may include reforming natural gas to syngas in a first reactor; contacting the syngas produced in the first reactor with a catalyst system in a second reactor to produce dimethyl ether and carbon dioxide; and supplying steam as a cofeed to at least one of the first reactor and the second reactor in an amount sufficient to achieve a Mm value of 1.4 to 1.8 or to improve the hydrocarbon or oxygenate selectivity.
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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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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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27.发明申请公开(公告)号：US20200290013A1
公开(公告)日：2020-09-17
申请号：US16889657
申请日：2020-06-01
Inventor： Jeannine Elizabeth Elliott , Robert James Copeland , Margarita Dubovik , Daniel P. Leta , Patrick P. McCall , Chuansheng Bai , Bruce A. DeRites
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.
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公开(公告)号：US10669491B2
公开(公告)日：2020-06-02
申请号：US15364869
申请日：2016-11-30
Applicant: ExxonMobil Research and Engineering Company
Inventor： Stephen J. McCarthy , Chuansheng Bai , Wenyih Frank Lai , Paul Podsiadlo , William W. Lonergan
IPC: B01J29/06 , C10G45/64 , C10G45/62 , C10G45/12 , C10G45/08 , C10G65/12 , C10G45/10 , C10G47/04 , C10G47/16 , B01J29/76 , B01J29/072 , B01J29/076 , B01J37/30 , B01J29/46 , B01J35/10 , B01J37/20 , B01J37/02 , B01J37/00 , B01J29/48 , B01J29/78 , C10G65/04 , C10G47/14
Abstract: Methods are provided for making base metal catalysts with improved activity. After forming catalyst particles based on a support comprising a zeolitic molecular sieve, the catalyst particles can be impregnated with a solution comprising a) metal salts (or other precursors) for a plurality of base metals and b) an organic dispersion agent comprising 2 to 10 carbons. The impregnated support particles can be dried to form a base metal catalyst, and then optionally sulfided to form a sulfided base metal catalyst. The resulting (sulfided) base metal catalyst can have improved activity for cloud point reduction and/or for improved activity for heteroatom removal, relative to a base metal dewaxing catalyst prepared without the use of a dispersion agent.
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公开(公告)号：US10414991B2
公开(公告)日：2019-09-17
申请号：US15626288
申请日：2017-06-19
Applicant: ExxonMobil Research and Engineering Company
Inventor： Benjamin S. Umansky , Himanshu Gupta , John D. Nelson , Cindy J. Hughart , Jane C. Cheng , Steven W. Levine , Stephen H. Brown , Todd P. Marut , David C. Dankworth , Stuart L. Soled , Thomas F. Degnan, Jr. , Robert J. Falkiner , Mohsen N. Harandi , Juan D. Henao , Lei Zhang , Chuansheng Bai , Richard C. Dougherty
IPC: C10G65/12 , B01J27/185 , B01J27/186 , B01J35/10 , C10G31/09 , C10G45/16 , C10G67/14 , B01J23/885 , B01J27/19 , C10G45/08 , C10G47/04 , B01J23/882
Abstract: Systems and methods are provided for hydroconversion of a heavy oil feed under slurry hydroprocessing conditions and/or solvent assisted hydroprocessing conditions. The systems and methods for slurry hydroconversion can include the use of a configuration that can allow for improved separation of catalyst particles from the slurry hydroprocessing effluent. In addition to allowing for improved catalyst recycle, an amount of fines in the slurry hydroconversion effluent can be reduced or minimized. This can facilitate further processing or handling of any “pitch” generated during the slurry hydroconversion. The systems and methods for solvent assisted hydroprocessing can include processing of a heavy oil feed in conjunction with a high solvency dispersive power crude.
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