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. 27, 1989
Filed:
Dec. 17, 1987
Applicant:
Inventor:
Paul T Pendergraft, Tulsa, OK (US);
Assignee:
Amoco Corporation, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; B01D / ;
U.S. Cl.
CPC ...
4235 / ; 422171 ; 422172 ; 423230 ;
Abstract
In a process in which ZnO is used to absorb H.sub.2 S and/or SO.sub.2 from Claus Plant tail gas, producing ZnS, and in which ZnS is regenerated using O.sub.2 producing regeneration effluent, the volume of regeneration effluent containing sulfur species which must be further processed is reduced or diminished in quantity by diluting the oxygen containing gas with water prior to regeneration of ZnS to ZNO and thereafter removing at least a portion of the added water.