What does the inlet recycled hydrogen concentration refer to in the calculation of the hydrogen partial pressure in a hydrogenation unit? ?
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This post was last edited by Best Shooter on 2015-8-17 at 10:51. The book states that, under normal circumstances, the hydrogen partial pressure at the reactor inlet equals the product of the reactor inlet pressure and the purity of the recycle hydrogen at the reactor inlet. Does this purity refer to the concentration of recycle hydrogen in the mixture after it has been mixed with the feedstock, or rather to the concentration of recycle hydrogen in the gas itself?
There’s no one here; where have the experts gone?::(:(:( :L
In my opinion, it should be the purity of the circulating hydrogen at the top of the liquid separation tank at the inlet of the cycle compressor.
It must be the concentration of hydrogen in the recycled hydrogen gas; in fact, I think it should be the purity of hydrogen resulting from the mixing of the newly added hydrogen with the recycled hydrogen that serves as the basis for calculation.
Hydrogen purity of the gas entering the gas circulation system: this is the recycled hydrogen after passing through the reactor
I understand it the same way, but our senior experts believe that it should be based on the partial pressure after mixing:
That’s what is also said in Li Dadong’s book
Well, it should be the concentration of hydrogen after mixing. I had come across information on this before when studying the effect of hydrogen partial pressure on catalyst properties.