METHOD AND APPARATUS FOR EXTRACTING HYDROGEN FROM A HYDROTREATMENT EFFLUENT GAS OF A STRIPPING COLUMN Russian patent published in 2019 - IPC C10G67/02 C01B3/02 C01B3/50 

FIELD: technological processes.

SUBSTANCE: invention relates to extraction of hydrogen from hydro-processed effluent gas of a stripping column, namely to a device and a method of hydroprocessing. Proposed method comprises hydrotreatment of hydrocarbon feed in hydroprocessing reactor to produce hydroprocessing effluent. Then, said hydroprocessing effluent is separated in separator to produce gaseous flow and liquid flow. Further, the light gases are stripped from said liquid stream to obtain an effluent gas stream of the stripping column and the stripped hydroprocessing stream. Absorption of acid gases from said stream of effluent gas of the stripping column to obtain a desulphurised effluent stream of the stripping column. Compression of said desulphurised effluent stream of the stripping column and extraction of hydrogen from said desulfurized effluent stream of the stripping column.

EFFECT: extraction of hydrogen from waste gaseous flow of low pressure stripping column with proportional reduction of operating costs.

9 cl, 2 dwg, 3 ex