Dears,
I have an issue regarding the control strategy of the bottom temperature of a distillation column.
The system consists of a distillation column with 2 vertical parallel thermosyphon reboilers heated with hot water.
Problem: how is better to control the bottom temperature of the column...
Dear chemical engineers,,
Can somebody please give me some examples of industrial processes that are well described by the following type of reactions (beside the alkylation of butene with isobutane)?
1. A + B -> P DH1 < 0
2. A + P -> R DH2 < 0
thank you!
Dears,
I have an issue with a tubular heat exchanger which was not designed according to TEMA. I have to perform a checking/rating, but I can't set up the geometry according to the datasheet. The program I would like to use for the calculation is Aspen HTFS (which performs TEMA only design...
Dears,
I have double pipe heat exchanger with cold ethylene flowing in tube side at 55 barg and 10 C; it is heated by LP steam (1 barg, in shellside) to 35 C. The duty of the heat exchanger is Q = 2219 kW (normal conditions).
If the cold high pressure ethylene is blocked in the heat exchanger...
Dears,
I would like to consult you in solving an issue regarding a closed outlet scenario at the outlet of a reciprocating compressor.
Data:
I have a 2 stage reciprocating compressor, compressing a mixture of isobutane, hexane and nitrogen.
The 2'nd stage suction parameters are P0=4.14 bar and...
dears,
does anyone know if pressure waves caused by suddenly closing of a valve are mitigate by the elbows situated upstream of it?
if i have a 2500 m pipe length and from the last elbow to the CV are 50 m should i calculate the "critical time" with the total length, or only for the last 50 m...
