Pilot tests can produce 600–1000 m3 of gas containing hydrogen sulfide; how should this be handled?
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Pilot tests can produce 600–1000 m3 of gas, which contains hydrogen sulfide. How should the hydrogen sulfide in this gas be removed?
The traditional method is to use MDEA to absorb H2S
The water gas used in ammonia synthesis is purified by alkaline washing to remove acidic gases and hydrogen sulfide.
Use it as a heating medium to burn it, and then absorb SO2.
Measure the content; if it is low, use dry adsorption methods such as zinc oxide, while if the content is high, use wet methods such as absorption with alkaline solutions……
My suggestion = comprehensively optimize the recruitment process for floors 4 and 5
If it is no longer in use and treated as waste gas, 10% liquid alkali spray absorption should be used.
Is your processing capacity on a daily or hourly basis? If the volume to be processed is small, alkaline neutralization will suffice; if the volume is larger, a solvent (MDEA) should be used for removal, followed by processing in a sulfur removal unit.
If the hydrogen sulfide content is low, dry zinc oxide, iron oxide, etc. can be used. Wet desulfurization is considered only when the content is high; if high precision is required, then dry desulfurization is the better option!