公开(公告)号：US11654421B2

公开(公告)日：2023-05-23

申请号：US16947701

申请日：2020-08-13

申请人： ExxonMobil Technology and Engineering Company

发明人： Chuansheng Bai ,  Majosefina Cunningham ,  Jihad M. Dakka ,  Preeti Kamakoti ,  Aruna Ramkrishnan ,  Anjaneya S. Kovvali ,  Anita S. Lee

IPC分类号： B01J23/80 ,  C07C41/01 ,  B01J37/04 ,  B01J37/03 ,  B01J37/30 ,  B01J37/00 ,  B01J37/08 ,  B01J37/34 ,  B01J37/06 ,  B01J37/02 ,  B01J37/18 ,  B01J35/00 ,  B01J35/02 ,  B01J35/10 ,  B01J21/18

CPC分类号： B01J23/80 ,  B01J21/18 ,  B01J35/0013 ,  B01J35/026 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1047 ,  B01J35/1061 ,  B01J37/0036 ,  B01J37/0236 ,  B01J37/031 ,  B01J37/04 ,  B01J37/06 ,  B01J37/088 ,  B01J37/18 ,  B01J37/30 ,  B01J37/348 ,  C07C41/01

摘要： 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; mixing the metal catalyst precursor solution and an alkali metal buffer solution to produce a precipitate; ion exchanging the alkali metal in the precipitate for a non-alkali cation to produce a low-alkali metal precipitate comprising 3 wt % or less alkali metal by weight of the precipitate on a dry basis; producing a powder from the low-alkali metal 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.

公开(公告)号：US11638912B2

公开(公告)日：2023-05-02

申请号：US16947699

申请日：2020-08-13

申请人： ExxonMobil Technology and Engineering Company

发明人： Chuansheng Bai ,  Majosefina Cunningham ,  Jihad M. Daaka ,  Preeti Kamakoti ,  Aruna Ramkrishnan

IPC分类号： B01J23/80 ,  C07C41/01 ,  B01J37/03 ,  B01J37/08 ,  B01J37/06 ,  B01J37/02 ,  B01J37/00 ,  B01J37/18 ,  B01J35/02 ,  B01J35/00 ,  B01J35/10 ,  B01J37/04

摘要： 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.

公开(公告)号：US11602734B2

公开(公告)日：2023-03-14

申请号：US16993219

申请日：2020-08-13

申请人： ExxonMobil Technology and Engineering Company

发明人： Chuansheng Bai ,  Majosefina Cunningham ,  Jihad M. Dakka ,  Preeti Kamakoti ,  Aruna Ramkrishnan ,  Anjaneya S. Kovvali ,  Anita S. Lee

IPC分类号： B01J29/06 ,  B01J23/80 ,  C07C41/01 ,  B01J29/46 ,  B01J27/188 ,  B01J27/19 ,  B01J35/02 ,  B01J35/10 ,  B01J37/04 ,  B01J37/08 ,  B01J37/10 ,  B01J37/00 ,  B01J37/18 ,  B01J21/04 ,  C07C31/04 ,  C07C43/04 ,  C07C29/154

摘要： 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.

公开(公告)号：US11420182B2

公开(公告)日：2022-08-23

申请号：US15910212

申请日：2018-03-02

申请人： ExxonMobil Technology and Engineering Company ,  TDA Research, Inc.

发明人： Chuansheng Bai ,  Majosefina Cunningham ,  Patrick P. McCall ,  Hans Thomann ,  Jeannine Elizabeth Elliott ,  Vinh Nguyen

IPC分类号： B01J20/04 ,  B01J20/10 ,  B01J20/08 ,  B01J20/34 ,  B01J20/32 ,  B01J20/30 ,  B01D53/02 ,  B01J20/22

摘要： 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.

公开(公告)号：US11691139B2

公开(公告)日：2023-07-04

申请号：US16947706

申请日：2020-08-13

申请人： ExxonMobil Technology and Engineering Company

发明人： Chuansheng Bai ,  Majosefina Cunningham ,  Jihad M. Dakka ,  Preeti Kamakoti ,  Aruna Ramkrishnan ,  Anjaneya S. Kovvali ,  Anita S. Lee

IPC分类号： B01J37/08 ,  B01J37/02 ,  B01J37/04 ,  C07C41/01 ,  B01J33/00 ,  B01J21/18 ,  B01J29/40 ,  B01J37/10 ,  B01J23/80

CPC分类号： B01J37/084 ,  B01J21/18 ,  B01J23/80 ,  B01J29/40 ,  B01J33/00 ,  B01J37/0219 ,  B01J37/0221 ,  B01J37/04 ,  B01J37/10 ,  C07C41/01

摘要： 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.

公开(公告)号：US12030032B2

公开(公告)日：2024-07-09

申请号：US17316713

申请日：2021-05-11

申请人： ExxonMobil Technology and Engineering Company ,  TDA Research, Inc.

发明人： Chuansheng Bai ,  Majosefina Cunningham ,  Patrick P. McCall ,  Hans Thomann ,  Jeannine Elizabeth Elliott ,  Vinh Nguyen

IPC分类号： B01J20/08 ,  B01D53/02 ,  B01J20/04 ,  B01J20/30 ,  B01J20/32

CPC分类号： B01J20/08 ,  B01D53/02 ,  B01J20/041 ,  B01J20/3007 ,  B01J20/3078 ,  B01J20/3204 ,  B01J20/3236 ,  B01D2253/1124 ,  B01D2257/504 ,  B01D2258/0283 ,  Y02C20/40

摘要： 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.