Hydrogen Sulfide Measurement to Reduce Costs When Desulfurizing

Abstract

This paper describes analyzers and sample systems used to measure hydrogen sulfide in geothermal steam, in steam condensate and other liquid samples and for atmospheric monitoring. Desulfurizing equipment is required in most geothermal applications to prevent equipment corrosion and hydrogen embrittlement as well as to conform to regulatory agency equipments. Cost effect operation requires desulfurizing only to the extent required by the application. Analyzers when properly used measuring H2S into the process at strategic places in the process and atmospheric or liquid effluents, can reduce operating costs. Only the required amount of desulfurizing chemicals required to desulfurize need to be used. Analyzers can control injection at the proper rate. Desulfurizers such as the Stretford process can be made more efficient using analyzers.