Is water injection for the high-pressure air cooling in the hydrocracking unit done in co-current mode, while that in the high-temperature exchanger is done in counter-current mode?
Thread Content
Is water injection for the high-pressure air cooling in the hydrocracking unit done in counterflow, while that in the high-temperature exchanger is done in co-current flow?
I really want to know the answer too; has any UOP expert explained this design principle?
They don’t know either; they’re not clear about this issue. . . It turns out there isn’t enough space. . .
I guess that the water injection at high pressure occurs at the main pipe, from where it is then divided into several branches; usually there are 8 such branches. It’s hoped that the water can be distributed evenly here, and installing it in the reverse direction should help achieve even distribution； With a high exchange position, there is only one pipeline, so there is no issue of dispersion. It’s just a guess with no theoretical basis; let’s discuss it