Claus process improvement

Chemistry of inorganic compounds – Sulfur or compound thereof – Elemental sulfur

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423576, C01B 1704

Patent

active

045086990

ABSTRACT:
An improvement in the Claus Process for producing sulfur by reaction of hydrogen sulfide with sulfur dioxide at elevated temperature in the presence of a porous catalyst is described. The improvement lies in employing a porous catalyst, preferably alumina, having a large surface area at least 40% of which is provided by pores having diameters over the range 40 A.degree. to 150 A.degree. or having at least 20% of its surface area provided by pores having diameters over the range 80 A.degree. to 150 A.degree..

REFERENCES:
patent: 4097585 (1978-06-01), Fischer
"Choose Catalyst Objectively", Hydrocarbon Processing, Nov. 1974, by Robert A. Burns, Regis B. Lippert, and Richard K. Kerr.

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