Removal of hydrogen sulfide from simulated geothermal brines by reaction with oxygen. Final report, October 6, 1975-February 4, 1977

Technical Report · Fri Apr 01 04:00:00 EST 1977

DOI:https://doi.org/10.2172/5349997· OSTI ID:5349997

Wilson, J S; King, J E; Bullard, G R

A process for controlling hydrogen sulfide emissions and corrosivity in geothermal systems has been evaluated on a small laboratory pilot plant scale and shown to be technically feasible. The hydrogen sulfide was oxidized by oxygen injected directly into a 11.4-liter-(3-gallon)-per-minute flowing stream of simulated geothermal brine. The oxidation of the sulfide was complete at oxygen:sulfide mole ratios of 1.25:1 to 1.5:1, depending on temperature and total dissolved solids in the brine. The reaction products were free sulfur, sulfite and sulfate. The ratio of these was dependent upon the oxygen:sulfide mole ratios; but, generally, more than 80% of the sulfide was converted to sulfate, approximately 10% to free sulfur and less than 10% to sulfite.

• Research Organization: Dow Chemical Co., Freeport, TX (USA)
• DOE Contract Number: AC02-76ET28485
• OSTI ID: 5349997
• Report Number(s): DOE/ET/28485-1; COO-2797-1; ON: DE82014664
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
AIR POLLUTION ABATEMENT
BRINES
CHALCOGENIDES
CHEMICAL REACTIONS
CORROSION
COST
ELEMENTS
FLUID INJECTION
FLUIDS
FUNCTIONAL MODELS
GEOTHERMAL FLUIDS
GEOTHERMAL POWER PLANTS
Geothermal Legacy
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
NONMETALS
OXIDATION
OXYGEN
PILOT PLANTS
POLLUTION ABATEMENT
POWER PLANTS
STOICHIOMETRY
SULFIDES
SULFUR COMPOUNDS
THERMAL POWER PLANTS
THERMAL WATERS