FIELD: process engineering.
SUBSTANCE: invention relates to chemistry and biotechnology. Method of continuous isolation and concentration of hydrogen from biogas composed of five and more components includes biogas feed from reactor (pyrolysis reactor or bioreactor) by compressor into membrane module for pre-concentration of hydrogen in permeate or retentate and subsequent feed of permeate (after additional compression) or retentate (without additional compression) to short-cycle adsorption unit to obtain hydrogen contrite at the outlet. Note here that membranes with selectivity H2/CO2>1 are used for pre-concentration of hydrogen as permeate while membranes with selectivity H2/CO2<1 are used for pre-concentration of hydrogen as retentate.
EFFECT: extraction of hydrogen from biogas, longer life of membranes.
2 cl, 5 dwg, 1 tbl
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