DEA sulfur scrubbing capabilities

[chemjock]

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?

 

[EmmanuelTop]

Yes you can easily go with DEA - no probs with removing all H2S if you want.

http://antwrp.gsfc.nasa.gov/apod/astropix.html

 

[dcasto]

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.