[Help] Why is the feed buffer tank of the continuous reforming pre-hydrogenation unit designed with bottom feeding?
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On the PID diagram, feeding is from the top of the tank, but in the actual installation it is from the bottom. Please, experts, explain it to me
I don’t know much about continuous reforming. Where is the discharge point?
Feeding from the bottom of the tank shouldn’t be done, as it hinders the separation of oil and water. Generally, feeding takes place from the top, but the pipes must extend to a certain depth within the tank, with discharge occurring just above the bottom of the tank.
This is diesel hydrorefining, and the feed tanks are designed in the same way. I think the only advantage is that the properties of the feed material change, which can be immediately reflected in the reaction feed; with top feeding, the buffering time is longer.