公开(公告)号：US20240076563A1

公开(公告)日：2024-03-07

申请号：US18260223

申请日：2021-12-24

Applicant: CHEVRON U.S.A. INC.

Inventor： Kenneth John PEINADO ,  Jay PAREKH ,  Jifei JIA ,  Yihua ZHANG ,  Guan-Dao Lei ,  Guang ZHANG

IPC: C10G67/02 ,  C10M101/02 ,  C10M177/00

CPC classification number: C10G67/02 ,  C10M101/02 ,  C10M177/00 ,  C10G2300/202 ,  C10G2300/302 ,  C10G2300/304 ,  C10G2300/308 ,  C10G2400/04 ,  C10G2400/10 ,  C10G2400/14 ,  C10M2203/1006 ,  C10N2070/00

Abstract: Provided in one embodiment is an improved and more flexible process for preparing a finished base oil or a white oil product comprising passing a dewaxed base oil product to a distillation column and separating the dewaxed base oil product into fuel and base oil product streams. The base oil product streams are tested to determine if they meet desired specifications. Base oil product streams that meet the desired minimum base oil specifications are passed to a hydrofinishing reactor to prepare a white oil product, or passed to direct sale.

公开(公告)号：US20240076560A1

公开(公告)日：2024-03-07

申请号：US18269239

申请日：2021-12-20

Applicant: CHEVRON U.S.A. INC.

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

IPC: C10G45/64 ,  B01J29/76

CPC classification number: C10G45/64 ,  B01J29/7661 ,  C10G2300/80

Abstract: Described herein is a process for hydroisomerising a hydrocarbon feed. The process may comprise: combining a hydrocarbon feed and a hydroisomerisation additive to provide a combined feed; and contacting the combined feed with a hydroisomerisation catalyst comprising zeolite SSZ-91, where the hydroisomerisation additive is a substituted or unsubstituted nitrogen heterocycle.

公开(公告)号：US20220305471A1

公开(公告)日：2022-09-29

申请号：US17214782

申请日：2021-03-26

Applicant: CHEVRON U.S.A. INC.

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

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

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：US20220288565A1

公开(公告)日：2022-09-15

申请号：US17199262

申请日：2021-03-11

Applicant: CHEVRON U.S.A. INC.

Inventor： Yihua ZHANG ,  Guan-Dao LEI

IPC: B01J23/44 ,  B01J21/04 ,  B01J35/10 ,  B01J23/42 ,  C10G45/52 ,  B01J21/12

Abstract: An improved hydrotreating catalyst and process for making a base oil product wherein the catalyst comprises a base extrudate that includes a high nanopore volume amorphous silica alumina (ASA) and an alumina. The catalyst and process generally involve the use of a high nanopore volume ASA/alumina based catalyst to produce hydrotreated dewaxed base oil products by contacting the catalyst with a hydrocarbon feedstock. The catalyst base extrudate advantageously comprises an amorphous silica alumina having a pore volume in the 11-20 nm pore diameter range of 0.2 to 0.9 cc/g and an alumina having a pore volume in the 11-20 nm pore diameter range of 0.01 to 1.0 cc/g, with the base extrudate formed from the amorphous silica alumina 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 further comprises at least one modifier element from Groups 6 to 10 and Group 14 of the Periodic Table. The catalyst and process provide improved aromatics saturation.

公开(公告)号：US20220143587A1

公开(公告)日：2022-05-12

申请号：US17095010

申请日：2020-11-11

Applicant: CHEVRON U.S.A INC.

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

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

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：US20160089666A1

公开(公告)日：2016-03-31

申请号：US14862358

申请日：2015-09-23

Applicant: CHEVRON U.S.A. INC.

Inventor： Yihua ZHANG ,  Kamala Raghunathan KRISHNA ,  Guan-Dao LEI ,  Theodorus Ludovicus Michael MAESEN

IPC: B01J29/74 ,  C10G45/64 ,  C10M101/02 ,  B01J35/10

CPC classification number: B01J29/74 ,  B01J21/04 ,  B01J29/7461 ,  B01J29/7492 ,  B01J35/00 ,  B01J35/0026 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1047 ,  B01J35/1061 ,  B01J35/108 ,  C10G45/64 ,  C10M101/02

Abstract: The present invention is directed to an improved finished hydroisomerization catalyst manufactured from a first high nanopore volume (HNPV) alumina and a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 15 to 25 nm·g/cc, and a second HNPV alumina having a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 5 to 15 nm·g/cc. Their combination yields a HNPV base extrudate having a low particle density as compared to a conventional base extrudates.

Abstract translation: 本发明涉及一种由第一高纳米孔体积（HNPV）氧化铝制成的改进的成品加氢异构化催化剂，其特征在于孔的体积的半峰全宽度为15至25nm·g / cc，第二HNPV氧化铝的孔径分布的特征在于半孔的全宽度归一化为孔体积，为5〜15nm·g / cc。 与传统的基础挤出物相比，它们的组合产生具有低颗粒密度的HNPV基础挤出物。

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

IPC: B01J37/04 ,  B01J21/04 ,  B01J23/10 ,  B01J23/63 ,  B01J23/83 ,  B01J23/89 ,  C10G45/64

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.

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：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.

公开(公告)号：US20220288566A1

公开(公告)日：2022-09-15

申请号：US17199282

申请日：2021-03-11

Applicant: CHEVRON U.S.A. INC.

Inventor： Yihua ZHANG ,  Guan-Dao LEI ,  Bi-Zeng ZHAN

IPC: B01J23/44 ,  B01J21/12 ,  B01J35/10 ,  C10M101/02 ,  C10M177/00 ,  C10G45/62

Abstract: An improved hydrotreating catalyst and process for making a base oil product wherein the catalyst comprises a base extrudate that includes a high nanopore volume amorphous silica alumina (ASA) and a second amorphous silica alumina. The catalyst and process generally involve the use of a base extrudate comprising the high nanopore volume ASA and the second ASA in a catalyst to produce hydrotreated dewaxed base oil products by contacting the catalyst with a hydrocarbon feedstock. The catalyst base extrudate advantageously comprises a first amorphous silica alumina having a pore volume in the 11-20 nm pore diameter range of 0.2 to 1.0 cc/g and a second amorphous silica alumina having a pore volume in the 11-20 nm pore diameter range of 0.02 to 0.2 cc/g, with the base extrudate formed from the amorphous silica alumina 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 further comprises at least one modifier element from Groups 6 to 10 and Group 14 of the Periodic Table. The catalyst and process provide improved aromatics saturation.