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. 27, 1999
Filed:
Sep. 10, 1997
Scott Lynn, Pleasant Hill, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
Elemental sulfur is recovered from the hydrogen sulfide present in natural gas or other process gases by passing the hydrogen sulfide contaminated gas through a hydrogen sulfide absorber so as to obtain a natural or other process gas having a diminished amount of hydrogen sulfide and stripping the hydrogen sulfide out the resulting hydrogen sulfide rich solution so as to obtain a hydrogen sulfide rich gas; feeding the hydrogen sulfide rich gas and sulfur dioxide into a reactor so that the following reaction takes occurs, 2H.sub.2 S+SO.sub.2 .fwdarw.3/2S.sub.2 +2H.sub.2 O under such conditions that there is approximately a 50 percent stoichiometric excess of hydrogen sulfide; combusting the residual, unreacted hydrogen sulfide to convert it into sulfur dioxide, and passing the resulting sulfur dioxide back into the reactor where the reaction between hydrogen sulfide and sulfur dioxide occurs.