Hi every one, i am production engineer we produce melamine resin with batch process. Last two production we can't destillation all of distillate. Destillation is start at 100 C with vacum and temperature decrasing 50 C and distillation is stop. what can i do?
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Destillation Early Stopping
#1
Posted 12 September 2020 - 12:38 PM
#2
Posted 12 September 2020 - 01:08 PM
You can restart the operation.
Bobby
#3
Posted 12 September 2020 - 06:40 PM
hi,
any change in the composition of material due to internal leaks ? Is it atmospheric or vacuum distillation?...
Too little information to support .
A better description of your process including operation conditions and may be sketch are needed .
Good luck
Breizh
#4
Posted 14 September 2020 - 12:33 AM
Vacuum distillation ofcourse viscosity increasing with distillation
hi,
any change in the composition of material due to internal leaks ? Is it atmospheric or vacuum distillation?...
Too little information to support .
A better description of your process including operation conditions and may be sketch are needed .
Good luck
Breizh
#5
Posted 14 September 2020 - 01:01 AM
Hi ,
OK vacuum distillation , what else ? I did not pay attention to your initial memo, sorry about that.
type of vacuum pump ? Can you share any pressure profiles/temperature profiles
at Normal condition vs upset (top & bottom)?
how do you manage the heat on your column/ reactor?
how do you control the boiling point in the sink ?
how do you control the pressure top column /condensor?
How long does it take to have a drop of temperature ?
What operators are doing in such case ?
how far is the end result compared to normal operation in term of quality?
BTW : no change in the recipe ? same raw mat , same quantity ?
Submit a PID or PFD for our members to comment .
Without document nothing will happen.
Good luck
Breizh
Edited by breizh, 14 September 2020 - 01:28 AM.
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