Experimental Study of Gasification of Automobile Tires in Filtration Combustion with Different Heat Carriers
V. M. Kislov, Yu. Yu. Tsvetkova, M. V. Tsvetkov, E. N. Pilipenko, M. V. Salganskaya, D. N. Podlesnyi, A. Yu. Zaichenko, E. A. Salganskii
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Chernogolovka, 142432 Russia
Keywords: filtration combustion, solid coolant, automobile tires, marble, sulfur absorption
Abstract
Experiments on the filtration combustion of automobile tires mixed with a solid coolant are carried out. The mass content of tire particles in a mixture varies from 10 to 70%. Particles of chemically inert sapphire (Al2O3) and sulfur-absorbing marble (CaCO3) are used as a heat carrier. Optimal conditions for the filtration combustion of automobile tires are determined (the tire content in a mixture is 50%, the combustion temperature is approximately 1 000 ºC, the mass burning rate is 0.40 kg/m3 of supplied air). It is established that the replacement of a solid inert coolant with marble has practically no effect on the combustion temperature. In this case, the composition of combustion products changes: the CO2 content in gaseous products increases (their combustion heat decreases from approximately 2.5 to 2.2 MJ/m3), the yield of liquid pyrolysis products decreases approximately from 45 to 40%, and the sulfur content in solid combustion products increases from 28 to 40%.
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