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:
Jul. 18, 1978
Filed:
Aug. 11, 1976
Kurt Tippmer, Recklinghausen, DE;
Firma Carl Still, , DE;
Abstract
A process for converting ammonia and hydrogen sulfide in coke oven gases into nitrogen, water and sulfur comprises, mixing the oven gases with oxygen and a portion of the waste gases of the process from which all the ammonia and most of the hydrogen sulfide has been removed, burning the mixture in a combustion chamber and passing the resulting gaseous products over a catalyst to convert the ammonia into water and nitrogen, mixing the gases after they pass over the catalyst with oxygen and another portion of the waste gases, and cooling the mixture and removing the condensed sulfur therefrom to form remaining products. The remaining products are further processed to remove additional sulfur, to condense and remove water. A portion of the remaining products are returned to the process in the form of waste gases.