Invention Grant
- Patent Title: Process for preparing a pour point depressing lubricant base oil component from waste plastic and use thereof
- Patent Title (中): 从废塑料制备倾点降低润滑剂基础油成分的方法及其用途
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Application No.: US12005281Application Date: 2007-12-27
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Publication No.: US08088961B2Publication Date: 2012-01-03
- Inventor: Stephen J. Miller
- Applicant: Stephen J. Miller
- 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
- Agency: Merchant & Gould
- Main IPC: C10G57/00
- IPC: C10G57/00 ; C10G1/00 ; C10L1/16
Abstract:
A process for making a pour point depressing lubricant base oil blending component comprises: pyrolyzing a plastics feed comprising polyethylene in a pyrolysis zone at a temperature in the range of about 450° C. to about 700° C. and a residence time in the range of about 3 minutes to about 1 hour to provide a pyrolysis effluent; isomerization dewaxing at least a portion of the pyrolysis effluent with an isomerization dewaxing catalyst in a catalytic isomerization dewaxing zone to provide a isomerization dewaxing effluent comprising a pour point depressing lubricant base oil blending component; and recovering the pour point depressing lubricant base oil blending component boiling in the range of about 900° F. to about 1100° F. and having a pour point in the range of about −15° C. to about 0° C. The pour point depressing lubricant base oil blending component can be used to improve lubricating properties (e.g. pour point) of a lubricant base oil.
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