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. 10, 1981
Filed:
Nov. 18, 1980
Applicant:
Inventors:
James B Lynn, Bethlehem, PA (US);
Joseph A Laslo, Bethlehem, PA (US);
Otto A Homberg, Easton, PA (US);
Assignee:
Bethlehem Steel Corporation, Bethlehem, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
423228 ; 423220 ; 423229 ;
Abstract
A method for regenerating a spent alkanolamine absorbing solution containing absorbed H.sub.2 S and CO.sub.2 in two desorption stages to produce two separate acid gas streams. The first acid gas stream that contains substantially all of the H.sub.2 S is sent to a sulfur recovery system and the second acid gas stream that is primarily CO.sub.2 is vented to the atmosphere. The desorption stages are connected in series and both are operated at substantially the same above-atmospheric pressure within the range of 8-12 psig (1.54-1.82 atm abs).