Hydrogen and sulfur recovery from hydrogen sulfide wastes

Patent · Tue May 18 00:00:00 EDT 1993

OSTI ID:6304741

Harkness, J B.L.; Gorski, A J; Daniels, E J

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.

• DOE Contract Number: W-31109-ENG-38
• Assignee: Univ. of Chicago, IL (United States)
• Patent Number(s): US 5211923; A
• Application Number: PPN: US 7-739029
• OSTI ID: 6304741
• Resource Relation: Patent File Date: 1 Aug 1991
• Country of Publication: United States
• Language: English

Related Subjects

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