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公开(公告)号：US20230303399A1
公开(公告)日：2023-09-28
申请号：US17703067
申请日：2022-03-24
Applicant: CHEVRON U.S.A. INC.
Inventor： Dan XIE , Kurt Owen JENSEN , Adeola Florence OJO
CPC classification number: C01B39/48 , B01J29/703 , C01P2002/72
Abstract: A method is provided for synthesizing *MRE molecular sieves using an organic structure directing agent which comprises a 1-ethylpyridinium cation.
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公开(公告)号：US20240299917A1
公开(公告)日：2024-09-12
申请号：US18177309
申请日：2023-03-02
Applicant: CHEVRON U.S.A. INC.
Inventor： Christopher Michael LEW , Rebecca Edyne MACLEAN , Kurt Owen JENSEN
CPC classification number: B01J29/70 , B01J35/40 , B01J37/0018 , B01J37/031 , B01J37/04 , C01B39/48 , C01P2002/60 , C01P2002/72 , C01P2004/03
Abstract: A method is disclosed for producing small crystal forms of zeolite SSZ-81. The method includes forming a reaction mixture containing an alumina-coated silica sol, a source of an alkali metal, a structure directing agent containing 1,5-bis(N-methylpiperidinium)pentane dications and/or 1,5-bis(1-azonia-bicyclo[2.2.2]octane)pentane dications, a source of hydroxide ions, and water; and subjecting the reaction mixture to crystallization conditions sufficient to form crystals of the zeolite. The compositions made according to that method, as well as the various uses of the compositions, are also disclosed.
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公开(公告)号：US20240228308A1
公开(公告)日：2024-07-11
申请号：US18604633
申请日：2024-03-14
Applicant: CHEVRON U.S.A. INC.
Inventor： Dan XIE , Kurt Owen JENSEN , Adeola Florence OJO
CPC classification number: C01B39/48 , B01J29/703 , C01P2002/72
Abstract: A method is provided for synthesizing *MRE molecular sieves using an organic structure directing agent which comprises a 1-ethylpyridinium cation. The method provides an aluminosilicate molecular sieve of *MRE framework type which, in its as-synthesized form, comprises 1-ethylpyridinium cations in its pores.
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公开(公告)号：US20200330973A1
公开(公告)日：2020-10-22
申请号：US16838104
申请日：2020-04-02
Applicant: CHEVRON U.S.A. INC.
Inventor： Christopher Michael LEW , Kurt Owen JENSEN
Abstract: A method is provided for the synthesis of aluminum-containing forms of molecular sieve CIT-15. The method includes treating an aluminogermanosilicate CIT-13 molecular sieve with water under conditions sufficient to degermanate at least a portion of the aluminogermanosilicate CIT-13 molecular sieve to provide a phyllosilicate comprising delaminated cfi-layers; and calcining the phyllosilicate under conditions sufficient to convert the phyllosilicate to an aluminogermanosilicate CIT-15 molecular sieve.
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