Patent · US Active

Method for producing process gas for the claus process

US8431105B2 · kind B2 · utility

0Cited by

2References

4Claims

0Family size

Assignee

Lurgi GmbH · DE

Inventors

Eckhard Jungst · Villefontaine, FR
Wolfgang Nehb · Frankfurt am Main, DE
Alexander Schriefl · Scheinfeld, DE

Key dates

Filing date	Apr 14, 2010
Grant date	Apr 30, 2013
Priority date	—
Expiry date	Apr 14, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23D2209/30
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

With a method configured to generate process gas that contains hydrogen sulfide and sulfur dioxide for the Claus process, hydrogen-sulfide containing feed gas is burned with pure oxygen by means of several burners opening out into a combustion chamber wherein the pure oxygen is fed into the combustion chamber through a central tube each, the feed gas through a tube arranged coaxially around the central tube and inert gas as purge gas via an annular duct coaxially surrounding the feed gas tube. A favorable option of the method consists in the use of CO2 reclaimed by desorption of laden methanol as purge gas.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.