Lubricant production process

Details Lubricant production process Lubricant production process

1990-06-28

1992-05-05

Myers, Helane E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With subsequent treatment of products

208 97, 208 59, 208 33, 585737, 585739, 585738, C10G 5506

Patent

active

051104458

ABSTRACT:
Hydrocarbon lubricants having a high viscosity index (V.I.) and low pour point are produced by hydroisomerizing a waxy lube feed such as slack wax or a waxy gas oil over zeolite beta after which aromatic components are removed by extraction, e.g. with furfural. The raffinate is then dewaxed, preferably by solvent dewaxing to target pour point with a final hydrofinishing step. The hydroisomerization coupled with the aromatics extraction and dewaxing increases the range of crudes that can be processed into high V.I. lubes while maintaining equivalent product qualities. Hydrogen consumption in the process is relatively low.

REFERENCES:
patent: 4678556 (1987-07-01), Hicks et al.
patent: 4764266 (1988-09-01), Chen et al.
patent: 4911821 (1990-03-01), Katzer et al.
patent: 4913797 (1990-04-01), Albinson et al.
patent: 4919788 (1990-04-01), Chen et al.
patent: 4952303 (1990-08-01), Bortz et al.

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