FIELD: chemistry.
SUBSTANCE: invention can be applied in chemical industry. Method of removal of sulfur-, nitrogen- and halogen containing admixture, present in synthesis-gas, such, as H2S, COS, CS2, HCN, NH3, HF, HCl, HBr and HI, contains: a) stage of combined hydrolysis of COS and HCN and catching halogenated compounds with application of TiO2-based catalyst which contains from 10 wt % to 100 wt % of TiO2 and from 1 wt % to 30 wt % of at least one sulfate of alkali-earth metal, selected from calcium, barium, strontium and magnesium, b) stage of washing with at least one solvent, c) stage of desulphurisation on catching mass or adsorbent.
EFFECT: invention makes it possible to obtain purified synthesis-gas, which contains less than 10 weight parts per billion of sulphureous admixtures, less than 10 weight parts per billion of halogenated admixtures.
22 cl, 8 tbl, 6 ex
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