Catalytic dewaxing process

Details Catalytic dewaxing process Catalytic dewaxing process

1987-02-03

1990-04-17

McFarlane, Anthony

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208109, 208111, 208118, 208120, C10G 4716, C10G 1105

Patent

active

049177893

ABSTRACT:
A process for reducing the pour point of sulfur containing gas oil fractions to produce fractions, including diesel oil of reduced pour point involving sequential hydrotreating and dewaxing of the gas oil feedstock. The hydrotreating step is carried out over a conventional hydrodesulfurization catalyst to remove sulfur. The dewaxing step is carried out over silicalite at mild dewaxing conditions under which the C.sub.3 and lower gas make is no greater than 2 wt. % based upon the gas oil feed.

REFERENCES:
patent: 4309276 (1982-01-01), Miller
patent: 4361477 (1982-11-01), Miller
patent: 4370219 (1983-01-01), Miller
patent: 4416766 (1983-11-01), Mulaskey
patent: 4548705 (1985-10-01), Young et al.
patent: 4560469 (1985-12-01), Hopkins et al.
patent: 4648958 (1987-03-01), Ward

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