FIELD: oil and gas industry.
SUBSTANCE: invention is related to combustible gas enrichment system capable to improve energy saving performance considering service life of a suction device, wherein the combustible gas enrichment system comprises an adsorption unit filled with adsorbing agent for selective adsorption of combustible gas; the initial gas feed unit capable of feeding initial gas comprising combustible gas to the adsorption unit from outside area; the suction device capable of gas suction from inner part of the adsorption unit and a control device to perform absorption and desorption process, at that the control device ensures operation of the suction device so that suction force of the suction device is less when desorption process does not take place than the suction force of the suction device when desorption process takes place.
EFFECT: improved energy saving performance.
5 cl, 6 dwg, 6 tbl
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