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FIELD: gas cleaning. SUBSTANCE: method for cleaning of oxygen-containing gases from sulfur dioxide includes chemical sorption of sulfur dioxide by solution of phosphates in combination with thiosulfate at temperature of 20-50 C and solution pH 6.5-4.2 in apparatus, preferably, of Venturi scrubber. Regeneration of solution with hydrogen sulfide is carried out in the presence of homogeneous catalyst at temperature of 40-70 C and pH 4.2-6.5 in bubbling apparatus (preferably in gas-lift type). In so doing, HS : SOratio in fed gases is 1.5:4. Solution contains, mol./l: phosphates 0.3-2.0; thiosulfate 0.3-1.0; catalyst by Ti, Al, Si,- 1•10-2•10, and by HF - 1•10-1,0.. EFFECT: higher efficiency of cleaning and simplified process. 4 cl, 1 dwg, 6 tbl
SU4478601/26A1988-08-301988-08-30Method for cleaning of oxygen-containing gases from sulfur dioxide
SU1823379A1
(en)
Process for separating, especially in multiple stages, acid components such as CO2, HCN and specifically H2S, from gases, especially from coke oven gases, by means of ammonia recirculation scrubbing