-
公开(公告)号:US20220347663A1
公开(公告)日:2022-11-03
申请号:US17241204
申请日:2021-04-27
Applicant: CHEVRON U.S.A. INC.
Inventor: Christopher Michael LEW , Cong-Yan CHEN , Bi-Zeng ZHAN , Stacey Ian ZONES
Abstract: A ferrosilicate molecular sieve having the framework structure of SSZ-70 and a method of making the same is disclosed. The ferrosilicate molecular sieve can be used in processes for dewaxing paraffinic hydrocarbon feedstocks.
-
公开(公告)号:US20250019250A1
公开(公告)日:2025-01-16
申请号:US18764872
申请日:2024-07-05
Applicant: Chevron U.S.A. Inc.
Inventor: Jesús C. PASCUAL , Stacey Ian ZONES , Cong-Yan CHEN
Abstract: A method for synthesizing a zeolite having an of MFI framework structure is provided. The method includes (i) preparing a reaction mixture comprising a source of aluminum, a source of silicon, a structure directing agent comprising 2,2-dipropylpentane-1-amine, a source of fluoride ions, and water; (ii) heating the reaction mixture under crystallization conditions including a temperature of from 100° C. to 200° C. for a time sufficient to form crystals of the aluminosilicate zeolite; and (iii) recovering the crystals of the aluminosilicate zeolite from the reaction mixture.
-
公开(公告)号:US20240270585A1
公开(公告)日:2024-08-15
申请号:US18165387
申请日:2023-02-07
Applicant: CHEVRON U.S.A INC.
Inventor: Christopher Michael LEW , Rishabh JAIN , Cong-Yan CHEN
CPC classification number: C01B39/087 , B01J29/7034 , C01P2004/62
Abstract: This disclosure relates to a ferrosilicate molecular sieve of MTW framework topology, its synthesis and use. Ferrosilicate MTW may be directly prepared using 1,3-diisobutylimidazolium cations as a structure directing agent. Ferrosilicate MTW may be used in organic compounds conversion and absorptive processes.
-
公开(公告)号:US20210220807A1
公开(公告)日:2021-07-22
申请号:US17023709
申请日:2020-09-17
Applicant: CHEVRON U.S.A. INC.
Inventor: Stacey Ian ZONES , Jesus PASCUAL , Dan XIE , Cong-Yan CHEN
IPC: B01J29/04 , C01B39/48 , C01B39/06 , C01B39/02 , B01J37/04 , B01J37/00 , B01J37/10 , C07C4/06 , C07D233/58
Abstract: A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-116, is provided. SSZ-116 can be synthesized using 3-[(3,5-di-tert-butylphenyl)methyl]-1,2-dimethyl-1H-imidazolium cations as a structure directing agent. SSZ-116 may be used in organic compound conversion reactions and/or sorptive processes.
-
公开(公告)号:US20220185685A1
公开(公告)日:2022-06-16
申请号:US17358472
申请日:2021-06-25
Applicant: CHEVRON U.S.A. INC.
Inventor: Joel Edward SCHMIDT , Adeola Florence OJO , Cong-Yan CHEN
IPC: C01B39/46
Abstract: An organotemplate-free synthetic process for the production of a zeolite of TON framework type structure is provided. The process includes the steps of: (1) preparing a mixture comprising: (a) an alumina-coated silica; (b) a source of an alkali metal; (c) an alcohol; (d) a source of hydroxide ions; (e) seed crystals comprising a zeolitic material having a TON framework type structure; and (f) water; and (2) crystallizing the mixture obtained in step (1).
-
公开(公告)号:US20220072520A1
公开(公告)日:2022-03-10
申请号:US17531242
申请日:2021-11-19
Applicant: Chevron U.S.A. Inc.
Inventor: Stacey Ian ZONES , Dan XIE , Cong-Yan CHEN
Abstract: A novel synthetic crystalline aluminogermanosilicate molecular sieve material, designated SSZ-117x, is provided. SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. SSZ-117x may be used in organic compound conversion reactions and/or sorptive processes.
-
公开(公告)号:US20210363023A1
公开(公告)日:2021-11-25
申请号:US17323005
申请日:2021-05-18
Applicant: CHEVRON U.S.A. INC.
Inventor: Stacey Ian ZONES , Jesus PASCUAL , Dan XIE , Cong-Yan CHEN
Abstract: A small crystal size, high surface area aluminogermanosilicate molecular sieve material, designated SSZ-120, is provided. SSZ-120 can be synthesized using 3,3′-[2,6-naphthalenebis(methylene)]bis[1,2-dimethyl-1H-imidazolium] dications as a structure directing agent. SSZ-120 may be used in organic compound conversion reactions and/or sorptive processes.
-
公开(公告)号:US20210130258A1
公开(公告)日:2021-05-06
申请号:US17146198
申请日:2021-01-11
Applicant: Novvi LLC , Chevron U.S.A. Inc.
Inventor: Eduardo Baralt , Cong-Yan CHEN , Yalin HAO , Liwenny HO , Willbe HO , Ajit PRADHAN , Jason ROSALLI , Benton THOMAS , Jason WELLS
IPC: C07C2/22 , B01J21/04 , B01J27/12 , B01J29/74 , C07C5/03 , C07C5/25 , C07C7/04 , C10G67/02 , C10G69/12 , C10M105/04 , C07C5/13
Abstract: Provided herein is a unique process that prepares a saturated hydrocarbon mixture with well-controlled structural characteristics that address the performance requirements driven by the stricter environmental and fuel economy regulations for automotive engine oils. The process allows for the branching characteristics of the hydrocarbon molecules to be controlled so as to consistently provide a composition that has a surprising CCS viscosity at −35° C. (ASTM D5329) and Noack volatility (ASTM D5800) relationship. The process comprises providing a specific olefinic feedstock, oligomerizing in the presence of a BF3 catalyst, and hydroisomerizing in the presence of a noble-metal impregnated, 10-member ring zeolite catalyst.
-
公开(公告)号:US20240158246A1
公开(公告)日:2024-05-16
申请号:US18495261
申请日:2023-10-26
Applicant: CHEVRON U.S.A. INC.
Inventor: Stacey Ian ZONES , Joel Edward SCHMIDT , Cong-Yan CHEN
CPC classification number: C01B39/06 , B01J29/047 , B01J37/082 , C01B39/026 , C01B39/48 , C07C4/06 , B01J2229/16 , B01J2229/183 , C01P2002/72 , C01P2004/03 , C07C2529/06
Abstract: This disclosure relates to an aluminogermanosilicate molecular sieve, designated as SSZ-124, methods for making the same, and uses thereof.
-
公开(公告)号:US20220288572A1
公开(公告)日:2022-09-15
申请号:US17693503
申请日:2022-03-14
Applicant: CHEVRON U.S.A. INC.
Inventor: Stacey Ian ZONES , Cong-Yan CHEN
Abstract: A method is disclosed for producing small crystal, high aluminum content zincoaluminosilicate crystalline materials having the SSZ-41 framework structure. The compositions made according to that method, as well as uses of the same, are also disclosed.
-
-
-
-
-
-
-
-
-