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:
Aug. 17, 1976
Filed:
Feb. 11, 1975
Frank Peter Richardson, Lenexa, KS (US);
David Anthony Young, Leawood, KS (US);
J. F. Pritchard and Company, Kansas City, MO (US);
Abstract
A commercially feasible method is provided for controlling depositions of solid sulfur within plant equipment utilized in absorptive-regenerative processes for the removal of H.sub.2 S from sour gas streams which eliminates costly shutdowns and manual cleaning of the plant equipment and permits removal of solid sulfur therefrom in conjunction with that produced during the regular process itself. The method comprises adding ammonia to such H.sub.2 S removal systems during running thereof in order to solubilize any solid sulfur and remove the same with the sulfur produced by circulating alkali absorption solution employed. Ammonia may be added to either the sour gas stream or directly to the absorption solution, and moreover can be added intermittently to remove preexisting sulfur deposits or on a semi-continuous basis as needed to substantially prevent undesirable sulfur buildup. The present method finds application in connection with known desulfurization processes such as the Stretford, Ferrox and Takahax.