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:
Jun. 09, 2009
Filed:
Jul. 13, 2004
Stephen Rhys Graville, Sheffield, GB;
Stephen Rhys Graville, Sheffield, GB;
The BOC Group plc, , GB;
Abstract
A feed gas stream containing hydrogen sulfide is subjected to a Claus reaction in a Claus furnace (). Oxygen or oxygen-enriched air containing at least 80% by volume oxygen is supplied to the furnace () to support combustion of the hydrogen sulfide. Sulfur vapour is condensed out of the resultant effluent gas in a sulfur condenser (). The sulfur depleted effluent gas is subjected to a plurality of stages of catalytic reaction of hydrogen sulfide in order to form further sulfur vapour in catalytic reactors () and () with the sulfur vapour being condensed out of the gas in sulfur condensers () and (). The sulfur dioxide content of the resulting tail gas is reduced to hydrogen sulfide in reactor ().