Lurgi Gmbh

Eckhard Jüngst

Walter Boll

Alexander Schriefl

Wofgang Nehb

Wolfgang Nehb

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 COreclaimed by desorption of laden methanol as purge gas.

Method for producing process gas for the claus process

In an apparatus for continuously recovering sulfur from a gas stream containing 0.1 to 3.0 vol-% HS, further gaseous sulfur compounds and sulfur, the gas stream first is passed over a reduction stage consisting of hydrogenation catalyst and then over a selective oxidation stage consisting of oxidation catalyst. To reduce the amount of apparatus involved, it is provided to arrange the reduction stage and the selective oxidation stage in a reaction tank and to leave a space for introducing a gaseous cooling medium into the gas stream between the two stages.

Growing community of inventors

Frankfurt-am-Main, Germany

Eckhard Jüngst