Direct chlorination process for hydrogen sulfide abatement
The Direct Chlorination Process removes hydrogen sulfide from geothermal off-gases by reacting hydrogen sulfide with chlorine in the gas phase. Hydrogen chloride and elemental sulfur are formed by this reaction. The Direct Chlorination Process has been successfully demonstrated by an on-site operation of a pilot plant at the 3 MWe HPG-A geothermal power plant in Hawaii. Over 99.5% hydrogen sulfide removal was achieved in a single cocurrent reaction stage. Chlorine gas did not escape the pilot plant, even when 90% excess chlorine gas was used. A preliminary economic evaluation indicates that, when compared with the Stretford Process, the Direct Chlorination Process required about one-third the initial capital investment and about one-fourth the net daily expenditure. Because of the higher cost of chemicals and the restricted markets in Hawaii, the economic viability of this process in Hawaii is questionable.
- Research Organization:
- I. Sheinbaum Company, Inc., Monrovia, CA
- OSTI ID:
- 7369592
- Report Number(s):
- EPRI-AP-3271; CONF-8306177-; ON: TI84920082
- Resource Relation:
- Conference: 7. annual geothermal conference and workshop, San Diego, CA, USA, 28 Jun 1983; Related Information: In: Seventh annual geothermal conference and workshop: proceedings, by
- Country of Publication:
- United States
- Language:
- English
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Direct chlorination process for geothermal power plant off-gas - hydrogen sulfide abatement
Direct chlorination process for geothermal power plant off-gas - hydrogen sulfide abatement
Related Subjects
GEOTHERMAL FLUIDS
DESULFURIZATION
GEOTHERMAL POWER PLANTS
AIR POLLUTION ABATEMENT
HYDROGEN SULFIDES
CHLORINATION
REMOVAL
CHEMICAL REACTIONS
ECONOMIC ANALYSIS
FEASIBILITY STUDIES
OPERATION
PILOT PLANTS
STOICHIOMETRY
SULFUR
CHALCOGENIDES
ECONOMICS
ELEMENTS
FLUIDS
FUNCTIONAL MODELS
HALOGENATION
HYDROGEN COMPOUNDS
NONMETALS
POLLUTION ABATEMENT
POWER PLANTS
SULFIDES
SULFUR COMPOUNDS
THERMAL POWER PLANTS
Geothermal Legacy
150801* - Geothermal Power Plants- Design & Operation
152001 - Geothermal Data & Theory- Properties of Aqueous Solutions