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公开(公告)号：US20240299918A1
公开(公告)日：2024-09-12
申请号：US18261481
申请日：2022-01-13
Applicant: CHEVRON U.S.A. Inc.
Inventor： Yihua ZHANG , Adeola OJO , Guan-Dao LEI
CPC classification number: B01J29/7661 , B01J35/50 , 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.
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公开(公告)号：US20240141237A1
公开(公告)日：2024-05-02
申请号：US18269754
申请日：2021-12-20
Applicant: CHEVRON U.S.A. INC.
Inventor： Kamala R. KRISHNA , Yihua ZHANG , Guan-Dao LEI , Adeola OJO
CPC classification number: C10G11/05 , B01J29/703 , C10G3/44 , B01J2231/648 , C10G2300/1014 , C10G2400/04
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.
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公开(公告)号：US20240174525A1
公开(公告)日：2024-05-30
申请号：US18552665
申请日：2022-03-24
Applicant: CHEVRON U.S.A. INC.
Inventor： Adeola OJO
CPC classification number: C01B39/48 , B01J29/7046 , B01J29/7492 , C07C5/2775 , C01B39/46 , C01P2002/72
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.
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Patent Agency Ranking
公开(公告)号：US20240100513A1
公开(公告)日：2024-03-28
申请号：US18269915
申请日：2021-12-20
Applicant: CHEVRON U.S.A. INC.
Inventor： Yihua ZHANG , Adeola OJO , Guan-Dao LEI
CPC classification number: B01J37/04 , B01J21/04 , B01J23/10 , B01J23/63 , B01J23/83 , B01J23/894 , C10G45/64 , B01J35/026
Abstract: A method for making a hydroisomerization catalyst having improved thermal stability and metal dispersion characteristics, the catalyst prepared therefrom, and a process for making a base oil product using the catalyst are disclosed. The catalyst is prepared from a composition comprising an SSZ-91 molecular sieve and a rare earth modified alumina, with the composition being modified to contain a Group 8-10 metal, typically through impregnation of a Group 8-10 metal composition. The catalyst may be used to produce dewaxed base oil products by contacting the catalyst under hydroisomerization conditions with a hydrocarbon feedstock.
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公开(公告)号：US20230265350A1
公开(公告)日：2023-08-24
申请号：US18043738
申请日：2021-09-03
Applicant: CHEVRON U.S.A. INC.
Inventor： Yihua ZHANG , Adeola OJO , Guan-Dao LEI
IPC: C10G45/64 , B01J37/00 , C10G45/62 , B01J29/70 , B01J29/068 , B01J29/072
CPC classification number: C10G45/64 , B01J37/0009 , C10G45/62 , B01J29/703 , B01J29/7023 , B01J29/068 , B01J29/072
Abstract: An improved process and catalyst system for making a base oil product and for reducing base oil aromatics content, while also providing good product yields. The process and catalyst system generally involves the use of a bimetallic SSZ-91 catalyst by contacting the catalyst with a hydrocarbon feedstock to provide dewaxed base oil products.
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公开(公告)号：US20240367159A1
公开(公告)日：2024-11-07
申请号：US18552655
申请日：2022-03-24
Applicant: CHEVRON U.S.A. INC.
Inventor： Adeola OJO , Yihua ZHANG , Guan-Dao LEI , Howard Steven LACHEEN
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.
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公开(公告)号：US20240165596A1
公开(公告)日：2024-05-23
申请号：US18552664
申请日：2022-03-24
Applicant: CHEVRON U.S.A. INC.
Inventor： Adeola OJO , Yihua ZHANG , Guan-Dao LEI , Howard Steven LACHEEN
CPC classification number: B01J29/7492 , B01J29/7046 , B01J35/615 , B01J35/633 , B01J37/03 , B01J37/30 , C01B39/06 , C07C5/2708 , B01J2229/16 , B01J2229/186 , C01P2002/72 , C01P2002/82 , C01P2004/03 , C01P2004/04 , C01P2006/12 , C01P2006/14 , C07C2523/44 , C07C2529/70 , C07C2529/74
Abstract: The present application pertains to family of new crystalline molecular sieves designated SSZ-93. Molecular sieve SSZ-93 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-93 is characterized as having magnesium.
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公开(公告)号：US20240101912A1
公开(公告)日：2024-03-28
申请号：US18038240
申请日：2021-11-22
Applicant: CHEVRON U.S.A. INC.
Inventor： Yihua ZHANG , Adeola OJO , Guan-Dao LEI
IPC: C10G45/64 , B01J29/74 , B01J29/80 , B01J37/02 , B01J37/04 , B01J37/08 , C10M109/02 , C10M177/00
CPC classification number: C10G45/64 , B01J29/7461 , B01J29/7469 , B01J29/80 , B01J37/0201 , B01J37/04 , B01J37/088 , C10M109/02 , C10M177/00 , B01J2029/062
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.
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