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:
May. 05, 1987
Filed:
May. 06, 1985
Applicant:
Inventors:
Dieter Laufhutte, Recklinghausen, DE;
Klaus Schupphaus, Herten, DE;
Gunter Trowe, Hamm, DE;
Wolf D Kosske, Dortmund, DE;
Friedrich Hubel, Castrop-Rauxel, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423220 ; 423234 ; 55 93 ;
Abstract
A method and apparatus for removing hydrogen sulfide from crude coke oven gas comprises initially scrubbing the crude coke oven gas in a low pressure scrubber using an aqueous regeneratable liquor. The gas is subsequently scrubbed in a high pressure scrubber using the same liquor. Streams of spent washing liquor are united and supplied to a regenerating unit where the hydrogen sulfide is removed in the form of sulfur or sulfuric acid. After the regenerating unit the liquor is returned to the high and low pressure scrubbers.