Chemistry of inorganic compounds – Sulfur or compound thereof – Elemental sulfur
Patent
1980-04-03
1981-07-28
Peters, G. O.
Chemistry of inorganic compounds
Sulfur or compound thereof
Elemental sulfur
423576, 422190, 422191, C01B 1704
Patent
active
042809908
ABSTRACT:
A process is provided for producing elemental sulphur from a hydrogen sulphide and sulphur dioxide containing gas stream by a Claus type of catalytic reaction. The process is based on the discovery that the conventional Claus catalyst, in the presence of liquid sulphur and at pressures considerably greater than one atmosphere, is significantly active toward the Claus catalytic reaction. Thus, in accordance with the invention, increasing the pressure of the reaction in the presence of liquid sulphur increases both the catalytic activity and the elemental sulphur conversion. The process involves introducing a compressed hydrogen sulphide and sulphur dioxide containing gas stream into a catalytic reactor and reacting the gases in a Claus catalyst bed in the reactor to produce elemental sulphur under conditions of temperature and pressure such that water in the reactor exists only as water vapor and sulphur vapor is condensed in the catalyst bed, being removed therefrom as a liquid. The pressure within the reactor is preferably between 5 and 50 atmospheres absolute.
REFERENCES:
patent: 1922872 (1933-08-01), Thompson
patent: 3532468 (1970-10-01), Beavon
patent: 4138473 (1979-02-01), Gleck
Jagodzinski Richard F.
Kerr Richard K.
Alberta Energy Company Ltd.
Hudson's Bay Oil and Gas Company Limited
Peters G. O.
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