How to obtain atmospheric-pressure residue material from the bottom of a vacuum distillation tower
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Dear teachers, I have a question: In a vacuum distillation unit, can it be possible to obtain atmospheric residue components from the bottom of the vacuum tower for use as feedstock in catalytic processes? The specific gravity of this feedstock is 0.836. What technical challenges need to be addressed?
I don’t understand; isn’t the feed to the pressure reduction tower just atmospheric residue?
Atmospheric residue is a fraction extracted from the bottom of the atmospheric tower, which can be sent to a vacuum tower for further processing.
No vacuum extraction during decompression; just go through the process as usual
Some units are equipped with a constant-slag cross-deslagging process, which bypasses the pressure reduction system; the constant slag is sent directly through the deslagging process for disposal. If there is no constant slag reduction, then use the pressure-reduction process; reduce pressure without removing it
Think of the pressure reduction system as a process; without proper operation of this system, no product can be produced.