Patent ID: 7594991
Filing Date: 2009-09-29
Classification: C10G

Abstract:
1. An all catalytic process for making white oils comprising: (a) hydrotreating a hydrocarbon feedstock under hydrotreating conditions to produce a first hydrotreated feedstock; (b) separating ammonia and hydrogen sulfide from the first hydrotreated feedstock; (c) hydrotreating stripped hydrotreated feedstock from step (b) under hydrotreating conditions to produce a second hydrotreated feedstock; (d) dewaxing the second hydrotreated feedstock from step (c) using a hydroisomerizing dewaxing catalyst under dewaxing conditions to produce a dewaxed feedstock; (e) fractionating the dewaxed product from step (d) to separate any ammonia, hydrogen sulfide and light ends from the dewaxed feedstock; and (f) hydrofinishing the dewaxed feedstock from step (e) under first hydrofinishing conditions to produce a first hydrofinished product, and (g) hydrofinishing the hydrofinished product from step (f) under second hydrofinishing conditions to produce a white oil product,