Direct chlorination process for geothermal power plant off-gas - hydrogen sulfide abatement

Technical Report · Wed Jun 01 00:00:00 EDT 1983

DOI:https://doi.org/10.2172/6796611· OSTI ID:6796611

Sims, A V

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 M We HPG-A geothermal power plant in the Puna District on the island of Hawaii. Over 99.5 percent hydrogen sulfide removal was achieved in a single reaction state. Chlorine gas did not escape the pilot plant, even when 90 percent excess chlorine gas was used. A preliminary economic evaluation of the Direct Chlorination Process indicates that it is very competitive with the Stretford Process. Compared to the Stretford Process, the Direct Chlorination Process requires about one-third the initial capital investment and about one-fourth the net daily expenditure.

• Research Organization: Sheinbaum (I.) Co., Inc., Monrovia, CA (USA)
• DOE Contract Number: AC03-82SF11664
• OSTI ID: 6796611
• Report Number(s): DOE/SF/11664-T3; ON: DE84011396
• Resource Relation: Other Information: Paper copy only, copy does not permit microfiche production. Original copy available until stock is exhausted
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
GEOTHERMAL FLUIDS
DESULFURIZATION
HYDROGEN SULFIDES
REMOVAL
CHLORINATION
GEOTHERMAL POWER PLANTS
HAWAII
PILOT PLANTS
CHALCOGENIDES
CHEMICAL REACTIONS
FEDERAL REGION IX
FLUIDS
FUNCTIONAL MODELS
HALOGENATION
HYDROGEN COMPOUNDS
NORTH AMERICA
POWER PLANTS
SULFIDES
SULFUR COMPOUNDS
THERMAL POWER PLANTS
USA
Geothermal Legacy