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:
Sep. 09, 2003
Filed:
Aug. 09, 2001
Richard William Watson, Near Ilkley, GB;
Stephen Rhys Graville, Sheffield, GB;
The BOC Group plc, Windlesham, GB;
Abstract
Sour gas containing hydrogen sulphide has hydrogen sulphide absorbed therefrom in an absorbent in a vessel . A hydrogen sulphide rich gas stream is formed by desorbing hydrogen sulphide from the absorbent in a vessel . The resulting hydrogen sulphide rich gas stream is partially burned in a furnace . Resulting sulphur dioxide reacts therein with residual hydrogen sulphide to form sulphur vapor which is extracted in a condenser . Residual sulphur dioxide and sulphur vapor are reduced to hydrogen sulphide in catalyst stage of a reactor . Water vapor is removed from the resulting reduced gas stream by direct contact with water in a quench tower . At least part of the resulting water vapor depleted gas stream is sent to the vessel with the incoming sour gas stream.