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:
Nov. 15, 2011
Filed:
Jun. 10, 2009
Applicants:
Subramanian Annamalai, Houston, TX (US);
James N Mccoy, Houston, TX (US);
Paul F Keusenkothen, Houston, TX (US);
Inventors:
Subramanian Annamalai, Houston, TX (US);
James N McCoy, Houston, TX (US);
Paul F Keusenkothen, Houston, TX (US);
Assignee:
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 11/00 (2006.01); C10C 1/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
Tar is contacted with stripping agent, such as steam or tail gas, in a stripping tower. A product comprising deasphalted tar is recovered as overheads and a product comprising heavy tar is recovered as bottoms from the stripping tower.