METHOD AND DEVICE FOR DECREASING AMOUNT OF CARBON OXYSULFIDE, CARBON BISULFIDE, COMPOUNDS OF METAL CARBONYLS, HYDROGEN SULPHIDE AND HYDROCYANIC COMPOUNDS, AS WELL AS THOSE OF AMMONIA, ARSENIC AND CHLORINE IN GREEN GAS Russian patent published in 2014 - IPC B01D53/00 

FIELD: process engineering.

SUBSTANCE: invention relates to gas flow cleaning. Proposed method comprises bringing the gas in contact with first cleaning agent containing activated carbon, second cleaning agent containing aluminium oxide, third cleaning agent containing zinc oxide, fourth cleaning agent containing zeolite material and fifth cleaning agent containing zinc and copper oxides. Invention covers also the device to decrease the amount of carbon oxysulfide, carbon bisulfide, compounds of metal carbonyls, hydrogen sulfide and hydrocyanic compounds as well as those of ammonia, arsenic and chlorine in green gas. Proposed device comprises first layer of cleaning agent containing activated carbon, second layer of cleaning agent containing aluminium oxide, third layer of cleaning agent containing zinc oxide, fourth layer of cleaning agent containing zeolite material and fifth layer of cleaning agent containing zinc and copper oxides.

EFFECT: removal of trace amounts of impurities.

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