公开(公告)号：US20230338934A1

公开(公告)日：2023-10-26

申请号：US18338224

申请日：2023-06-20

Applicant: CHEVRON U.S.A. INC.

Inventor： Adeola Florence OJO ,  Yihua ZHANG ,  Guan-Dao LEI ,  Howard S. LACHEEN

IPC: B01J29/80 ,  C10G45/64 ,  B01J37/04 ,  B01J29/74 ,  B01J37/03

CPC classification number: B01J29/80 ,  B01J29/74 ,  B01J29/7446 ,  B01J29/7461 ,  B01J37/031 ,  B01J37/04 ,  C10G45/64 ,  B01J2029/062

Abstract: The present application pertains to family of new crystalline molecular sieves designated SSZ-92. Molecular sieve SSZ-92 is structurally similar to sieves falling within the ZSM-48 family of molecular sieves and is characterized as having magnesium.

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

IPC: C01B39/48 ,  B01J29/70

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.

公开(公告)号：US20220219152A1

公开(公告)日：2022-07-14

申请号：US17147725

申请日：2021-01-13

Applicant: CHEVRON U.S.A. INC.

Inventor： Yihua ZHANG ,  Adeola Florence OJO ,  Guan-Dao LEI

IPC: B01J29/76 ,  B01J35/02 ,  C10G45/64

Abstract: A hydroisomerization catalyst comprising a molecular sieve belonging to the ZSM-48 family of zeolites; an inorganic oxide support; one or more first modifiers selected from Groups 8 to 10; and one or more second modifiers selected from the group consisting of calcium (Ca), chromium (Cr), magnesium (Mg), lanthanum (La), barium (Ba), praseodymium (Pr), strontium (Sr), potassium (K) and neodymium (Nd). The molecular sieve comprises: a silicon oxide to aluminum oxide mole ratio of about 40 to about 220; at least about 70% polytype 6 of the total ZSM-48-type material present in the product; and an additional EUO-type molecular sieve phase in an amount of between about 0 and about 7.0 percent by weight of the total product. The molecular sieve has a morphology characterized as polycrystalline aggregates comprising crystallites collectively having an average aspect ratio of between about 1 and about 8.

公开(公告)号：US20190375648A1

公开(公告)日：2019-12-12

申请号：US16395325

申请日：2019-04-26

Applicant: Chevron U.S.A. Inc.

Inventor： Dan XIE ,  Adeola Florence OJO

IPC: C01B39/48 ,  C01B39/12 ,  B01J29/70 ,  B01J29/86

Abstract: A method is provided for synthesizing a molecular sieve having the framework structure of SSZ-109 using N1,N6-diisopropyl-N1,N1,N6,N6-tetramethylhexane-1,6-diaminium cations as a structure directing agent.

公开(公告)号：US20240058802A1

公开(公告)日：2024-02-22

申请号：US18036572

申请日：2021-11-11

Applicant: CHEVRON U.S.A. INC.

Inventor： Yihua ZHANG ,  Adeola Florence OJO ,  Guan Dao LEI

IPC: B01J29/74 ,  B01J21/04 ,  B01J29/70 ,  B01J29/80 ,  B01J35/10 ,  C10G45/64 ,  C10M109/02

CPC classification number: B01J29/7461 ,  B01J21/04 ,  B01J29/7023 ,  B01J29/703 ,  B01J29/74 ,  B01J29/80 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1047 ,  B01J35/1061 ,  C10G45/64 ,  C10M109/02 ,  B01J2029/062

Abstract: An improved hydroisomerization catalyst and process for making a base oil product wherein the catalyst comprises a base extrudate that includes SSZ-91 molecular sieve and a high nanopore volume alumina. The catalyst and process generally involves the use of a SSZ-91/high nanopore volume alumina based catalyst to produce dewaxed base oil products by contacting the catalyst with a hydrocarbon feedstock. The catalyst base extrudate advantageously comprises an alumina having a pore volume in the 11-20 nm pore diameter range of 0.05 to 1.0 cc/g, with the base extrudate formed from SSZ-91 and the alumina having a total pore volume in the 2-50 nm pore diameter range of 0.12 to 1.80 cc/g. The catalyst and process provide improved base oil yield with reduced gas and fuels production.

公开(公告)号：US20230135430A1

公开(公告)日：2023-05-04

申请号：US18089676

申请日：2022-12-28

Applicant: CHEVRON U.S.A. INC

Inventor： Joel Edward SCHMIDT ,  Adeola Florence OJO

IPC: C01B39/48 ,  B01J29/74 ,  C10G49/08 ,  C01B39/02

Abstract: A method is disclosed making a molecular of TON framework type having unique properties. The method uses 1,3,4-trimethylimidazolium cations as a structure directing agent and a combined source of silicon and aluminum selected from alumina-coated silica and aluminosilicate zeolites. The obtained molecular sieve can be used in processes for dewaxing paraffinic hydrocarbon feedstocks.

公开(公告)号：US20220250926A1

公开(公告)日：2022-08-11

申请号：US17173712

申请日：2021-02-11

Applicant: CHEVRON U.S.A. INC.

Inventor： Joel Edward SCHMIDT ,  Adeola Florence OJO

IPC: C01B39/48 ,  B01J29/74 ,  C10G49/08

Abstract: A method is disclosed making a molecular of TON framework type having unique properties. The method uses 1,3,4-trimethylimidazolium cations as a structure directing agent and a combined source of silicon and aluminum selected from alumina-coated silica and aluminosilicate zeolites. The obtained molecular sieve can be used in processes for dewaxing paraffinic hydrocarbon feedstocks.

公开(公告)号：US20220162508A1

公开(公告)日：2022-05-26

申请号：US17105614

申请日：2020-11-26

Applicant: Chevron U.S.A. Inc.

Inventor： Yihua ZHANG ,  Adeola Florence OJO ,  Guan-Dao LEI

IPC: C10G45/64 ,  B01J29/80 ,  B01J29/74 ,  B01J37/04 ,  B01J37/02 ,  B01J37/08 ,  C10M109/02 ,  C10M177/00

Abstract: An improved hydroisomerization catalyst and process for making a base oil product using a catalyst comprising SSZ-91 molecular sieve and ZSM-12 molecular sieve. The catalyst and process generally involves the use of a catalyst comprising an SSZ-91 molecular sieve combined with a ZSM-12 molecular sieve to produce dewaxed base oil products by contacting the catalyst with a hydrocarbon feedstock. The catalyst and process provide improved base oil cold properties, such as pour point and cloud point, along with other beneficial base oil properties.

公开(公告)号：US20220306482A1

公开(公告)日：2022-09-29

申请号：US17702901

申请日：2022-03-24

Applicant: CHEVRON U.S.A. INC.

Inventor： Adeola Florence OJO

IPC: C01B39/48 ,  B01J29/70 ,  B01J29/74 ,  C07C5/27

Abstract: The present application pertains to family of new crystalline molecular sieves designated SSZ-94. Molecular sieve SSZ-94 is structurally similar to sieves falling within the MTT structure type such as SSZ-32x, SSZ-32, ZSM-23, EU-13, ISI-4, and KZ-1 family of molecular sieves. SSZ-94 is characterized as having magnesium.

公开(公告)号：US20220204867A1

公开(公告)日：2022-06-30

申请号：US17138260

申请日：2020-12-30

Applicant: CHEVRON U.S.A. INC.

Inventor： Kamala R. KRISHNA ,  Yihua ZHANG ,  GUAN-DAO LEI ,  Adeola Florence OJO

IPC: C10G11/05 ,  B01J29/70 ,  C10G3/00

Abstract: Described herein are processes for hydroisomerising an unconventional feedstock using a hydroisomerisation catalyst comprising zeolite SSZ-91, zeolite SSZ-32, or zeolite SSZ-32x to provide a diesel fuel.