Invention Publication
- Patent Title: PROCESS HAVING IMPROVED BASE OIL YIELD
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Application No.: US18269751Application Date: 2021-12-24
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Publication No.: US20240059987A1Publication Date: 2024-02-22
- Inventor: Kenneth John PEINADO , Jifei JIA , Guan-Dao LEI , Jay PAREKH , Yihua ZHANG
- Applicant: CHEVRON U.S.A. INC.
- Applicant Address: US CA San Ramon
- Assignee: CHEVRON U.S.A. INC.
- Current Assignee: CHEVRON U.S.A. INC.
- Current Assignee Address: US CA San Ramon
- International Application: PCT/IB2021/062289 2021.12.24
- Date entered country: 2023-06-26
- Main IPC: C10G67/04
- IPC: C10G67/04 ; C10G45/62

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.
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