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Title: Process to abate geothermal hydrogen sulfide

Abstract

A process for removing hydrogen sulfide from geothermal steam and from vent streams, or concentrated portions produced by a hydrogen sulfide separation process, includes the steps of introducing an oxygen-containing gas, such as air into the steam, or vent stream, and thereafter contacting the steam and oxygen-containing gas in a contacting stage with iron oxide supported by a carrier resistant to deterioration. The steam having a temperature of at least 250/sup 0/ F. is mixed with oxygen to provide a molar ratio of oxygen-to-hydrogen sulfide ratio of less than about 10. During the contacting stage the pressure of the steam and oxygen-containing gas is maintained at a pressure sufficient to enable removal of a majority of the hydrogen sulfide from the steam and oxygen-containing gas.

Inventors:
;
Publication Date:
OSTI Identifier:
6480138
Patent Number(s):
US 4528169
Assignee:
Occidental Research Corp.
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 29 Aug 1983; Other Information: PAT-APPL-527136
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; 54 ENVIRONMENTAL SCIENCES; NATURAL STEAM; DESULFURIZATION; SEPARATION EQUIPMENT; SEPARATION PROCESSES; AERATION; AIR POLLUTION ABATEMENT; HYDROGEN SULFIDES; IRON OXIDES; MEDIUM TEMPERATURE; MIXING; PRESSURE CONTROL; REMOVAL; CHALCOGENIDES; CHEMICAL REACTIONS; CONTROL; FLUIDS; GEOTHERMAL FLUIDS; HYDROGEN COMPOUNDS; IRON COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; POLLUTION ABATEMENT; STEAM; SULFIDES; SULFUR COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; 150600* - Geothermal Energy- Environmental Aspects; 500200 - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989)

Citation Formats

LaMori, P N, and Shih, C.-C. J. Process to abate geothermal hydrogen sulfide. United States: N. p., 1985. Web.
LaMori, P N, & Shih, C.-C. J. Process to abate geothermal hydrogen sulfide. United States.
LaMori, P N, and Shih, C.-C. J. Tue . "Process to abate geothermal hydrogen sulfide". United States.
@article{osti_6480138,
title = {Process to abate geothermal hydrogen sulfide},
author = {LaMori, P N and Shih, C.-C. J.},
abstractNote = {A process for removing hydrogen sulfide from geothermal steam and from vent streams, or concentrated portions produced by a hydrogen sulfide separation process, includes the steps of introducing an oxygen-containing gas, such as air into the steam, or vent stream, and thereafter contacting the steam and oxygen-containing gas in a contacting stage with iron oxide supported by a carrier resistant to deterioration. The steam having a temperature of at least 250/sup 0/ F. is mixed with oxygen to provide a molar ratio of oxygen-to-hydrogen sulfide ratio of less than about 10. During the contacting stage the pressure of the steam and oxygen-containing gas is maintained at a pressure sufficient to enable removal of a majority of the hydrogen sulfide from the steam and oxygen-containing gas.},
doi = {},
url = {https://www.osti.gov/biblio/6480138}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {7}
}