US Patent 7794685 Method for producing hydrogen and sulphuric acid

Patent 7794685 was granted and assigned to Outotec on September, 2010 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Outotec

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7794685

Date of Patent

September 14, 2010

Patent Application Number

12523230

Date Filed

January 17, 2008

Patent Citations Received

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US Patent 12110601 Process to convert reduced sulfur species and water into hydrogen and sulfuric acid

Patent Primary Examiner

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Timothy C. Vanoy

Patent abstract

The invention relates to a method for producing gaseous hydrogen and strong sulphuric acid (97-100 wt-%) simultaneously from sulphur dioxide gas and water. Sulphur dioxide gas stream is divided into two separate sub-streams, the first sub-stream is routed for water decomposition in a partial thermochemical cycle of the hydrogen and sulphuric acid production and the second sub-stream is fed to the oxidation of the sulphur dioxide to sulphur trioxide.