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DEA sulfur scrubbing capabilities

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chemjock

chemjock

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We are designing an amine scrubbing unit for the offgas from a NHT. Our design fuel gas sulfur spec is 10 ppmv H2S. An older reference said that DEA cannot go this low. The promax simulation shows that it is achievable. Can I believe the simulator?
 
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depends on pressure. If the pressure is under 100 psig, you may not make 10 ppm. Best bet is to always specify at least 250 psig to make 4 ppm. And yes, sometimes the simulator will be wrong, thats where you have to know some of the limits.
 
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