How to estimate ammonium bisulfide in REAC system
How to estimate ammonium bisulfide in REAC system
(OP)
I am reviewing the process ability of new crude with high Nitrogen in High Vaccumm Waxy to Hydrocracker Unit. At this stage, I assumed that total Nitrogen (about 3000 ppm) is totally converted into NH3 and NH4HS would be about 3.0x3000 ppm or 1%wt. However, this value seems to be very low in comparison with what we have experienced with Nitrogen <3000 ppm and we estimated NH4HS almost 2%wt or maximum of 4-5%wt sometimes.
Please anyone advise how to better estimate without using sour water analysis software as we do not have real H2S and NH3 concentration.
Please anyone advise how to better estimate without using sour water analysis software as we do not have real H2S and NH3 concentration.




