Invention Grant
- Patent Title: Catalytic processes and systems for base oil production using zeolite SSZ-32X
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Application No.: US14299463Application Date: 2014-06-09
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Publication No.: US09677016B2Publication Date: 2017-06-13
- Inventor: Kamala Krishna , Guan-Dao Lei
- 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
- Agent E. Joseph Gess; Melissa M. Hayworth; Mark L. Warzel
- Main IPC: C10G65/04
- IPC: C10G65/04 ; C10G45/62 ; C10G45/64 ; B01J23/58 ; B01J29/70 ; B01J37/02 ; C01B39/48 ; B01J29/80 ; B01J29/74

Abstract:
Processes and catalyst systems are provided for dewaxing a hydrocarbon feedstock to form a lubricant base oil. A layered catalyst system of the present invention may comprise a first hydroisomerization dewaxing catalyst disposed upstream from a second hydroisomerization dewaxing catalyst. Each of the first and second hydroisomerization dewaxing catalysts may be selective for the isomerization of n-paraffins. The first hydroisomerization catalyst may have a higher level of selectivity for the isomerization of n-paraffins than the second hydroisomerization dewaxing catalyst. At least one of the first and second hydroisomerization dewaxing catalysts comprises small crystallite zeolite SSZ-32x.
Public/Granted literature
- US20140291206A1 CATALYTIC PROCESSES AND SYSTEMS FOR BASE OIL PRODUCTION USING ZEOLITE SSZ-32X Public/Granted day:2014-10-02
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