THE PURIFICATION METHOD AND THE PURIFICATION DEVICE REFINING AS BIO-METHANE USING COOLING WATER AND COMPRESSING BOTH BIO-METHANE GAS AND THE MIXED GAS BY DENSITY OF GAS AND GRAVITY DIFFERENCE

摘要

PURPOSE: A purifier of bio methane gas is provided to obtain fuel by collecting only methane gas having a small density and specific gravity from mixed gas and refining the methane gas and to prevent the exhaustion of air pollution source. CONSTITUTION: A purifier of bio methane gas comprises: a desulfurization tank(25) separating sulfur of mixed gas; an apparatus for compressing the desulfurized mixed gas; a first compressing chamber(12) in which the compressed mixed gas is inserted at a high pressure(6-10kg/cm^2); a first water film layer(14) absorbing a part of heterogeneous gas except for the methane gas; a second compressing chamber(13) forming a high pressure(3-5kg/cm^2); a second water film layer(15) absorbing a part of the heterogeneous gas; a water injection room(19) which is included on the second water film layer; a dehumidifying layer(22) eliminating moisture of the mixed gas passing through the water injection room; and an activated carbon layer(21a) eliminating the heterogeneous gas from the dehumidified mixed gas.