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Title: Hydrogen and sulfur recovery from hydrogen sulfide wastes

A process is described for generating hydrogen and elemental sulfur from hydrogen sulfide waste in which the hydrogen sulfide is [dis]associated under plasma conditions and a portion of the hydrogen output is used in a catalytic reduction unit to convert sulfur-containing impurities to hydrogen sulfide for recycle, the process also including the addition of an ionizing gas such as argon to initiate the plasma reaction at lower energy, a preheater for the input to the reactor and an internal adjustable choke in the reactor for enhanced coupling with the microwave energy input.
Authors:
; ;
Publication Date:
OSTI Identifier:
6304741
Report Number(s):
US 5211923; A
PPN: US 7-739029
DOE Contract Number:
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 1 Aug 1991
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 01 COAL, LIGNITE, AND PEAT; 03 NATURAL GAS; HYDROGEN; MATERIALS RECOVERY; HYDROGEN SULFIDES; PLASMA HEATING; SULFUR; CATALYSTS; CHEMICAL REACTORS; DISSOCIATION; IMPURITIES; RECYCLING; REDUCTION; SULFUR COMPOUNDS; SYNTHESIS; WASTE PRODUCT UTILIZATION; CHALCOGENIDES; CHEMICAL REACTIONS; ELEMENTS; HEATING; HYDROGEN COMPOUNDS; MANAGEMENT; NONMETALS; PROCESSING; SULFIDES; WASTE MANAGEMENT; WASTE PROCESSING 320305* -- Energy Conservation, Consumption, & Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management; 010800 -- Coal, Lignite, & Peat-- Waste Management; 030700 -- Natural Gas-- Waste Management