flow rate control for acetone reovery
flow rate control for acetone reovery
(OP)
Dear all
we try to recover acetone from solid material that is being dried in vacuum tray driers. at min. 600 mmhg and 50-55 deg c range. there are 2 such driers where batches are charged at uncotrollable times. when tem and vac is applied intially high load of vapors will vaporize and our condenser is not big enough to condense intial high rate of vapor flow so much acetone is wwasted. both driers have common vacuum pump with vfd. is there any way that with this condenser that run utility in its tubes at -18 deg c condense all vapors??
we try to recover acetone from solid material that is being dried in vacuum tray driers. at min. 600 mmhg and 50-55 deg c range. there are 2 such driers where batches are charged at uncotrollable times. when tem and vac is applied intially high load of vapors will vaporize and our condenser is not big enough to condense intial high rate of vapor flow so much acetone is wwasted. both driers have common vacuum pump with vfd. is there any way that with this condenser that run utility in its tubes at -18 deg c condense all vapors??





RE: flow rate control for acetone reovery
RE: flow rate control for acetone reovery
You can also regulate the vacuum at the beginning of the cycle via the VFD, as long as only one dryer is working at a time. Several experiments with the vacuum should get you a good starting point and rate of increase in the vacuum. Or add another condenser, that should be cheaper/easier than changing out your cooling system (I think that is what you are proposing).
RE: flow rate control for acetone reovery
At lower gauge vacuum ,BP of Acetone is larger,so LMTD shall be more,HTA required shall be less.
This means that evacuation rate is to be set by practically. Air leakage in system need also to be checked before charging batch