Recycling of waste heat boiler effluent to an oxygen-enriched Cl

Details Recycling of waste heat boiler effluent to an oxygen-enriched Cl Recycling of waste heat boiler effluent to an oxygen-enriched Cl

1987-01-14

1988-07-12

Doll, John

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

C01B 1704

Patent

active

047569000

ABSTRACT:
A system and method of use thereof are disclosed for recovering sulfur from a feed gas stream containing hydrogen sulfide which is combusted with an oxygen-enriched gas in a Claus reaction furnace. Within the method, combustion effluent from a waste heat boiler associated with the Claus reaction furnace is divided into a first and second stream so that the sulfur in the first stream is condensed and then the stream is passed on to later Claus reaction stages, and the sulfur in the second stream is condensed and then this stream is introduced into the Claus reaction furnace to moderate the temperatures therein.

REFERENCES:
patent: 3681024 (1972-08-01), Hujsak et al.
patent: 4391790 (1983-07-01), Palm et al.
patent: 4391791 (1983-07-01), Palm et al.
patent: 4552747 (1985-11-01), Goar
patent: 4684514 (1987-08-01), Chen
"Look at Claus Unit Design", Parnell, Hydrocarbon Processing, 9-1985, pp. 114-118.
Unit Processes and Principles of Chemical Engineering, Olsen Van Nostrand Co., Inc., 1932, pp. 1-3.

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