FIELD: cleaning gases in boilers, industrial furnaces and thermal engine working on gaseous liquid and organic fuels. SUBSTANCE: device for processing combustion products is provided with the following components located in succession along gas-and- water passage: contact or contact-surface condenser, degasifier, supply compressor and crystalline hydrator which has initial solution and cold and hot heat-transfer agent forced circulation loops. Initial solution forced circulation loop is connected to degasifier through supply compressor and to reservoir and is provided with compressor; heat-transfer agent forced circulation loop is connected with atmospheric air; it includes compressor and autonomous sources of cold and heat. Waste gases are absorbed in condenser at such pressure when temperature of condensation of water vapor is equal to 90-100 C; condensate is degassed in degasifier at atmospheric pressure; condensation of water vapor and adsorption of separated gases are effected in crystalline hydrator by means of initial solution; crystalline hydrates of each agent are formed due to change and control of temperature and pressure of initial solution; then crystalline hydrates are molten and pure agents thus obtained are separated from water. EFFECT: enhanced economical efficiency; possibility of obtaining concentrated sulfuric and nitric acids, pure carbon and sulfur dioxides, nitrogen and oxygen from combustion products. 31 cl, 2 dwg
