1.The concentrate from ATFE-1 will go to the ATFE-2 by pump. .. OK
2.The client wants to avoid the two hot oil pumps PU-201 and PU-202. He has a single pump for the Aldehyde hot oil system. So by using the same pump and controlling the flow  by control valve for preheater and ATFE-1, is it possible to maintain the 215 dg C in them and 280 dg C for ATFE- 2 ..gear pump cannot be avoided if a different temperature of hot oil is needed.
3.Details of vapour column and packing on the Vapour line of ATFE-1 ..will be provided soon.
4.Is  control valve on the hot oil out let line of ATFE-2 required. ..no control valve cannot be used here for control of temperature.
5.There is no valve on the vacuum line. Is the same required..? No.
6. What should be the new level for ATFE I ?