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Title: Hydrogen sulfide decomposition into hydrogen and sulfur by quinone cycles. Second annual report, June 1990-May 1991

Technical Report ·
OSTI ID:6247037

The HYSULF process decomposes hydrogen sulfide using mild conditions. In the process, hydrogen sulfide is first reacted with a quinone in an organic solvent to produce sulfur and hydroquinone. After sulfur removal, hydroquinone is catalytically processed to recover hydrogen and recycle quinone-solvent. The produced sulfur is of excellent quality and easily recoverable from the solvent. The organic solvent should eliminate corrosion problems associated with commercial aqueous redox systems which produce only sulfur. Since no air oxidation is used, the sulfite-sulfate salt problems of aqueous systems will be avoided. The purpose of the GRI contract is to develop a better mechanistic understanding of process chemical reactions and economics. This should result in (1) Increased quinone conversion and sulfur precipitation rates; (2) Determining the effect of carbon dioxide on first stage chemistry; (3) Eliminating the anthrone by-product produced in the dehydrogenation step.

Research Organization:
Marathon Oil Co., Littleton, CO (United States)
OSTI ID:
6247037
Report Number(s):
PB-91-243071/XAB; CNN: GRI-5089-260-1779
Resource Relation:
Other Information: See also PB90-270463. Sponsored by Gas Research Inst., Chicago, IL
Country of Publication:
United States
Language:
English