Sulfur degassing process

Details Sulfur degassing process Sulfur degassing process

2011-08-16

2011-08-16

Vanoy, Timothy (Department: 1734)

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

Reexamination Certificate

active

07998451

ABSTRACT:
A process is disclosed for removing hydrogen sulfide from liquid sulfur including: passing a liquid sulfur feed comprising liquid sulfur and hydrogen sulfide to a vaporizer; vaporizing at least a portion of the liquid sulfur feed in the vaporizer to thereby form a first vapor stream comprising gaseous sulfur and gaseous hydrogen sulfide; partially condensing the first vapor stream in a condenser to form a liquid product stream comprising liquid sulfur and a second vapor stream comprising hydrogen sulfide; wherein the liquid product stream has a lower concentration of hydrogen sulfide than the liquid sulfur feed.

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P.D. Clark, K.L. Lesage, T. McDonald, A. Mason and A.K. Neufeld, “Investigations Into the Chemical Mechanisms of Liquid Sulfur Degassing and Their Relevance to Industrial Degassing Systems”, Alberta Sulfur Research Ltd., Quarterly Bulletin, Apr.-Jun. 1994, vol. XXXI, No. 1, pp. 23-64.
P.D. Clark, K. L. Lesage, E. Fitzpatrick and P.M. Davis, “H2S Solubility in Liquid Sulfur as a Function of Temperature and H2S Gas Phase Partial Pressure”, Alberta Sulphur Research Ltd., Quarterly Bulletin, Oct.-Dec. 1997, vol. XXXIV, No. 1, pp. 1-19.

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