The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 1990
Filed:
Feb. 03, 1987
Applicant:
Inventors:
James R Butler, Big Spring, TX (US);
William P Licht, Big Spring, TX (US);
Assignee:
Fina Technology, Inc., Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; C10G / ;
U.S. Cl.
CPC ...
208 89 ; 208109 ; 208111 ; 208118 ; 208120 ;
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.