H2S in Liquid Scavenger Treated Gas

H2S in Liquid Scavenger Treated Gas - APPLICATION NOTE H2S...

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Unformatted text preview: APPLICATION NOTE H2S Measurement in Gas from Liquid Scavenger Based Processes March 2011 Application: Over the last five years Envent Engineering has supplied several hundred lead acetate paper tape analyzers to measure residual H2S in natural gas to and from liquid based scavenger treating processes. Typically, a H2S absorbing liquid is brought in contact with a gas containing as high as a few thousand ppm to 10 ppm H2S. The design normally calls for a residual of 1 ppm or less of H2S after treatment with the scavenger. In order to monitor at 1 ppm and subsequently control the liquid injection to the process with any degree of accuracy, the H2S analyzer needs to resolve a order of magnitude less than 1 ppm or 100 ppb. This is easily achievable with an Envent tape analyzer. Unlike competitive technologies, lead acetate is totally specific to H2S . In addition, the analyzer can be used to measure the inlet H2S concentration by using its inherent multi-stream capability in conjunction with a simple membrane based dilution sample conditioning system.inherent multi-stream capability in conjunction with a simple membrane based dilution sample conditioning system....
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