Geothermal hydrogen sulfide removal

Technical Report · Wed Apr 01 04:00:00 EST 1981

DOI:https://doi.org/10.2172/6388569· OSTI ID:6388569

Urban, P

UOP Sulfox technology successfully removed 500 ppM hydrogen sulfide from simulated mixed phase geothermal waters. The Sulfox process involves air oxidation of hydrogen sulfide using a fixed catalyst bed. The catalyst activity remained stable throughout the life of the program. The product stream composition was selected by controlling pH; low pH favored elemental sulfur, while high pH favored water soluble sulfate and thiosulfate. Operation with liquid water present assured full catalytic activity. Dissolved salts reduced catalyst activity somewhat. Application of Sulfox technology to geothermal waters resulted in a straightforward process. There were no requirements for auxiliary processes such as a chemical plant. Application of the process to various types of geothermal waters is discussed and plans for a field test pilot plant and a schedule for commercialization are outlined.

• Research Organization: UOP, Inc., Des Plaines, IL (USA)
• DOE Contract Number: AC03-79ET27203
• OSTI ID: 6388569
• Report Number(s): DOE/ET/27203-1; ON: DE81023938
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150600* -- Geothermal Energy-- Environmental Aspects
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
ELEMENTS
FIELD TESTS
FLUIDS
FUNCTIONAL MODELS
GEOTHERMAL FLUIDS
Geothermal Legacy
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
NONMETALS
OXYGEN COMPOUNDS
PILOT PLANTS
PLANNING
REMOVAL
SULFATES
SULFIDES
SULFOX PROCESS
SULFUR
SULFUR COMPOUNDS
TESTING
THERMAL WATERS
THIOSULFATES