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:
Mar. 08, 1994
Filed:
Nov. 18, 1992
Terry R Galloway, San Leandro, CA (US);
Synthetica Technologies, Inc., Richmond, CA (US);
Abstract
A method is described to reactivating contaminated particulate adsorbent material. A gas stream is passed through the adsorbent material. The gas stream comprises hydrogen, carbon monoxide and steam, and is substantially free of unbound oxygen. The temperature and flow rate of the gas stream is selected to volatilize organic compounds adsorbed by the adsorbent material. Thereafter, the gas stream is reacted with steam at a temperature of at least 700.degree. F. The steam with which the gas stream is reacted is in excess of the stoichiometric amount required to react with substantially all of the organic compounds in the gas stream. Thereafter the gas stream is circulated back to the adsorbent material for further passing therethrough. The cycle is continued until the level of contamination of the adsorbent material is below a predetermined level.