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:
Jul. 15, 1986
Filed:
Dec. 24, 1984
Kevin D Butler, Sarnia, CA;
Harry E Henderson, Edmonton, CA;
Exxon Research and Engineering Co., Florham Park, NJ (US);
Abstract
A method for decreasing the foaming tendency of hydrocarbons, particularly lube basestocks, is disclosed. The method comprises passing the hydrocarbon through an adsorption zone having an adsorbent, preferably a basic adsorbent therein. In a preferred embodiment, the method comprises passing the hydrocarbon feedstock through a regenerable multi-bed adsorption zone. The foaming tendency of the hydrocarbon exiting from the bed in service is monitored. The flow to each particular bed in service is discontinued and the bed regenerated when the foaming tendency of the hydrocarbon exiting from each particular bed exceeds a predetermined value.