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. 15, 1990
Filed:
Jul. 16, 1987
Applicant:
Inventor:
Peter Kappenberger, Zurich, CH;
Assignee:
Buss A.G., , CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
208361 ; 208366 ; 208 / ; 202236 ;
Abstract
The residue or residue fraction left behind during vacuum distillation in a crude oil refinery is further processed, in that it undergoes thin-film short-path distillation at a higher temperature and under a fine vacuum. Raising the temperature leads to a rise in the feed rate and to an improvement in the distillate/residue ratio.