公开(公告)号：US20240101913A1

公开(公告)日：2024-03-28

申请号：US18270202

申请日：2021-12-29

Applicant: CHEVRON U.S.A. INC.

Inventor： Ling JIAO ,  Bi-Zheng ZHAN ,  Don BUSHEE ,  Theodorus Ludovicus Michael MAESEN ,  Hye-Kyung TIMKEN ,  Richard DUTTA ,  Jay PAREKH

IPC: C10G65/12 ,  C10G7/00 ,  C10G47/14

CPC classification number: C10G65/12 ,  C10G7/00 ,  C10G47/14 ,  C10G2300/107 ,  C10G2300/1074 ,  C10G2300/4006 ,  C10G2300/4081

Abstract: Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650° F. (343° C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.

公开(公告)号：US20250019604A1

公开(公告)日：2025-01-16

申请号：US18898849

申请日：2024-09-27

Applicant: Chevron U.S.A. Inc.

Inventor： Ling JIAO ,  Bi-Zeng ZHAN ,  Don BUSHEE ,  Theodorus Ludovicus Michael MAESEN ,  Hye-Kyung TIMKEN ,  Richard DUTTA ,  Jay PAREKH

IPC: C10G65/12 ,  C10G7/00 ,  C10G47/14

Abstract: Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650° F. (343° C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.

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：US20240059987A1

公开(公告)日：2024-02-22

申请号：US18269751

申请日：2021-12-24

Applicant: CHEVRON U.S.A. INC.

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

IPC: C10G67/04 ,  C10G45/62

CPC classification number: C10G67/0418 ,  C10G45/62 ,  C10G2300/1022 ,  C10G2300/304 ,  C10G2300/70 ,  C10G2400/10

Abstract: Provided is a process for preparing base oil from a waxy hydrocarbon feedstock by contacting the hydrocarbon feedstock in a hydroisomerization zone under hydroisomerization conditions. The reaction is in the presence of hydrogen and an inert gas, with the total pressure in the hydroisomerization zone being at least 400 psig. A product from the hydroisomerization zone is collected and separated into base oil products and fuel products. The inert gas can comprise any suitable inert gas, but is generally nitrogen, methane or argon. Nitrogen is used in one embodiment.

公开(公告)号：US20230272291A1

公开(公告)日：2023-08-31

申请号：US18006495

申请日：2021-07-23

Applicant: Chevron U.S.A. Inc.

Inventor： Jifei JIA ,  Bi-Zeng ZHAN ,  Wai Seung William LOUIE ,  Arun ARORA ,  Jay PAREKH

IPC: C10G65/10 ,  C10G47/20 ,  B01J37/02 ,  B01J29/06 ,  B01J29/08 ,  B01J29/076 ,  B01J37/08

CPC classification number: C10G65/10 ,  C10G47/20 ,  B01J37/0203 ,  B01J29/061 ,  B01J29/084 ,  B01J29/076 ,  B01J37/08

Abstract: Provided is a novel catalyst for use in the second stage of a two-stage hydrocracking process. The present process comprises hydrocracking a hydrocarbon feed in a first stage. The catalyst in the first stage is a conventional hydrocracking catalyst. The product from the first stage can then be transferred to a second hydrocracking stage. The catalyst used in the second stage of the present hydrocracking process comprises a base impregnated with metals from Group 6 and Groups 8 through 10 of the Periodic Table, and an organic acid. The base of the catalyst used in the present second hydrocracking stage comprises alumina, an amorphous silica-alumina (ASA) material, and a USY zeolite. Improved naphtha production is achieved.