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. 17, 2005
Filed:
Sep. 04, 2001
Richard William Watson, Near Ilkley, GB;
Stephen Rhys Graville, Sheffield, GB;
Richard William Watson, Near Ilkley, GB;
Stephen Rhys Graville, Sheffield, GB;
The BOC Group plc, Windlesham, GB;
Abstract
Oxygen or oxygen-enriched air is employed to support combustion in furnace () of part of the hydrogen sulphide content of a first feed gas stream. Sulphur is extracted from the resulting gas stream in a sulphur condenser (). Catalyst Claus reaction between hydrogen sulphide and sulphur dioxide in the resulting sulphur vapour depleted gas stream takes place in a catalytic reactor (). Sulphur is extracted in a further sulphur condenser (). The resulting sulphur vapour depleted gas stream is passed into a catalytic reduction reactor () in which all the residual sulphur dioxide and any sulphur vapour are reduced to hydrogen sulphide. The resulting reduced gas mixture has water vapour extracted there from in a quench tower (). The resulting water vapour depleted gas stream flows to a Claus plant for further treatment typically together with a second feed gas stream.