Process for the manufacture of lubricating oils

Details Process for the manufacture of lubricating oils Process for the manufacture of lubricating oils

1984-12-24

1988-07-05

Chaudhuri, Olik

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208 89, 208110, C10G 6704

Patent

active

047552794

ABSTRACT:
The present invention provides for a process for reducing the pour point of a hydrocarbon feedstock containing nitrogen- and sulfur-containing impurities. The hydrocarbon feedstock is contacted with hydrogen and a hydrotreating catalyst under hydrotreating conditions whereby a portion of the nitrogen- and sulfur-containing compounds are converted to hydrogen sulfide and ammonia. A portion of the hydrotreater effluent is then passed to a dewaxing zone and contacted with hydrogen under dewaxing conditions in the presence of a borosilicate-containing dewaxing catalyst.

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