Invention Grant
US3755138A Lube oils by solvent dewaxing and hydrodewaxing with a zsm-5 catalyst
失效
通过溶剂蒸馏和ZSM-5催化剂的水解制备润滑油
- Patent Title: Lube oils by solvent dewaxing and hydrodewaxing with a zsm-5 catalyst
- Patent Title (中): 通过溶剂蒸馏和ZSM-5催化剂的水解制备润滑油
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Application No.: US3755138DApplication Date: 1971-12-10
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Publication No.: US3755138APublication Date: 1973-08-28
- Inventor: NAI YUEN CHEN , GARWOOD W
- Applicant: MOBIL OIL CORP
- Assignee: Mobil Oil Corp
- Current Assignee: Mobil Oil Corp
- Priority: US20688871 1971-12-10; US86547069 1969-10-10
- Main IPC: B01J29/40
- IPC: B01J29/40 ; C10G45/64 ; C10G67/04 ; C10G71/00 ; C10G13/04
Abstract:
A two-step or combination process for preparing low pour point lube oils is set forth. The process involves subjecting a lube stock to a mild solvent dewaxing step, so as to obtain high quality waxes and a lube stock having an intermediate pour point; recovering the waxes and subjecting said intermediate pour point lube stock to a hydrowaxing step over a crystalline aluminosilicate of the ZSM-5 type to obtain a product having a pour point of 0* F and lower.
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