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:
May. 19, 1992
Filed:
Aug. 03, 1990
Applicant:
Inventors:
Edward C Haun, Glendale Heights, IL (US);
Gregory J Thompson, Waukegan, IL (US);
Jayant K Gorawara, Mundelein, IL (US);
Dana K Sullivan, Mt. Prospect, IL (US);
Assignee:
UOP, Des Plaines, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208 89 ; 208 88 ; 208 59 ; 208143 ; 208229 ;
Abstract
Middle distillate petroleum streams are hydrotreated to produce a low sulfur and low aromatic product in a process employing two reaction zones in series. The effluent of the first reaction zone is purged of hydrogen sulfide by hydrogen stripping and then reheated by indirect heat exchange. The second reaction zone employs a sulfur-sensitive noble metal hydrogenation catalyst. Operating pressure and space velocity increase and temperature decreases from the first to second reaction zones.