Exothermic Reactor Shut Down
Exothermic Reactor Shut Down
(OP)
We have a case in which when we cut off the inlet feed to an exothermic reactor (feed is gas) the temperature in the reactor still rises for a while. Given that we expect it almost immediately stops rising our first guess is that there is a delay with temperature sensors within the reactor. Any thoughts or similar experiences?





RE: Exothermic Reactor Shut Down
I'd also expect that if the reactor contents are rising and you kill the feed what feed is unreacted would still take a finite amount of time to react and would delay any temperature decline further.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Exothermic Reactor Shut Down
Good luck,
Latexman
To a ChE, the glass is always full - 1/2 air and 1/2 water.
RE: Exothermic Reactor Shut Down
RE: Exothermic Reactor Shut Down
Considering that reaction rates are function of temp I am not surprised at this.
If you are aiming for better control it sounds like you need better modeling and a feed-forward control methodology.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube
RE: Exothermic Reactor Shut Down
Good luck,
Latexman
To a ChE, the glass is always full - 1/2 air and 1/2 water.