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:
Jun. 08, 1993
Filed:
May. 01, 1992
Applicant:
Inventor:
Roger Van Driesen, Titusville, NJ (US);
Assignee:
ABB Lummus Crest Inc., Bloomfield, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B08B / ; C02F / ;
U.S. Cl.
CPC ...
502 23 ; 134 20 ; 134 39 ; 210761 ; 431-3 ; 502 26 ;
Abstract
Processes for the regeneration of catalysts, such as hydrogenation catalysts, and the defouling of objects, which are contaminated with carbonaceous deposits. The catalyst or object is contacted with water, oxygen-containing gas, and at least one alkaline material maintained at a pH of at least 7.0, and at a temperature and pressure sufficient to combust at least a portion of the carbonaceous deposits. The process of the present invention enables one to remove carbonaceous deposits from catalysts or contaminated the leaching of metals from the catalysts or objects by acidic by-products of the combustion process.