Detection of Combustible Gases by Semiconductor Sensors-Rapid Separation of Hydrogen Sulphide with β,β' -oxydipropionitrile

摘要

The separation between H_2S and low hydrocarbons has been accomplished by utilizing reversible physical adsorption of stationary liquid, which possesses the advantages of rapid separation and long column life duration. If solenoid switching technology is introduced, nearly the complete separation between 95% H_2S and hydrocarbons can be possible. The successful separation of combustible gases containing a high concentration of H_2S at room temperature makes it feasible the detection of H_2S-containing combustible gas by commercial available semiconductor gas sensor.