typical D/L of tubular reactor
typical D/L of tubular reactor
(OP)
Anybody knows what is the value of the ratio D/L for tubular reactor (fluidized bed and fixed bed).
Thank you.
Thank you.
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typical D/L of tubular reactor
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RE: typical D/L of tubular reactor
There is no value known without knowing and resolving the specific application.
Each application has its own value - which normally (in my experience) is not even of academic interest.
There is certainly no general value ever tossed around in design circles. Why do you ask and what would you want to do with it - if you were given one?
Art Montemayor
Spring, TX
RE: typical D/L of tubular reactor
For G-S reaction, if your catalyst crush strength is not a problem, then L/D = 5-6. However, I have designed L/D < 1 also.
In that case, make sure Pressure Drop across the bed is at least 5psi (typical High/Low Shift syngas application).
But some cases, pressure Drop might be high to meet the required L/D=5. In that case, you have to make sure proper flow distribution.
For G-L reactors, maintaining L/D is important, just to make sure channeling is not taking place.
For Fluidized bed, it depends what you want to acheive- for example, if you want to maintain particular residence time, your reactor will be long narrow, and some special distributor may be needed.
If you identify your application, then we can give some pointers.
Thanks,
Jay Bando
jbando@ureach.com
RE: typical D/L of tubular reactor