FIELD: chemistry.
SUBSTANCE: invention relates to a process for recovering hydrogen during a hydrogenation conversion which includes: providing a hydrogenation conversion unit with a pressure boosting device, wherein the pressure boosting device uses a high pressure stream coming from the separator to increase pressure; introducing a hydrogen-containing stream into the pressure increasing device and thereby increasing the pressure of the hydrogen-containing stream; routing the hydrogen-containing stream from the pressure-boosting device to the vapor-liquid separator; and recovering hydrogen from the hydrogen-containing stream in a hydrogen purification plant to produce a stream of recovered hydrogen.
EFFECT: method is a variant of an economically efficient method for extracting hydrogen from a process unit.
10 cl, 6 tbl 13 dwg
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