Invention Grant
US3992283A Hydrocracking process for the maximization of an improved viscosity lube
oil
失效
加氢裂化工艺可最大限度地改善粘度润滑油
- Patent Title: Hydrocracking process for the maximization of an improved viscosity lube oil
- Patent Title (中): 加氢裂化工艺可最大限度地改善粘度润滑油
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Application No.: US508118Application Date: 1974-09-23
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Publication No.: US3992283APublication Date: 1976-11-16
- Inventor: LeRoi E. Hutchings
- Applicant: LeRoi E. Hutchings
- Applicant Address: IL Des Plaines
- Assignee: Universal Oil Products Company
- Current Assignee: Universal Oil Products Company
- Current Assignee Address: IL Des Plaines
- Main IPC: C10G45/60
- IPC: C10G45/60 ; C10G65/10 ; C10G41/00 ; C10G13/06 ; C10G37/02
Abstract:
A process for hydrocracking petroleum fractions to produce lubricating oils of suitable viscosity index comprising subjecting a petroleum fraction to hydrocracking conditions selected to minimize the formation of non-lube oil fractions in the presence of a first hydrocracking catalyst, fractionating the resulting hydrocracked lube oil stock into a plurality of fractions having different boiling ranges, subjecting a higher boiling fraction to hydrocracking conditions in the presence of a second hydrocracking catalyst and blending the resulting lube oil fractions to produce the lube oil base stocks of the desired viscosity and viscosity index.
Public/Granted literature
- US5565074A Plasma reactor with a segmented balanced electrode for sputtering process materials from a target surface Public/Granted day:1996-10-15
Information query
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