Simulation of the organic-waste processing in plasma with allowance for kinetics of thermochemical transformations
V.E. Messerle1,2 and A.B. Ustimenko3,4*
1Institute of Combustion Problems, Almaty, Kazakhstan
2Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
3NTO Plasmotekhnika Ltd., Almaty, Kazakhstan
4Research Institute of Experimental and Theoretical Physics, Almaty, Kazakhstan
E-mail: ust@physics.kz*
Keywords: organic waste, plasma processing, fuel gas, kinetic modeling, calculation
Pages: 605–614
Abstract
Kinetic calculations
of the plasma processing/utilization process of organic waste in air and steam
ambient were carried out. It is shown that, during the time of waste residence
in the plasma reactor, 0.7 and 1.2 s, at the exit from the reactor there
forms a high-calorific fuel gas with a combustion heat of 3540 and
5070 kcal/kg, respectively. In this process, 1 kg of waste yields 1.16 kg of fuel gas at air
gasification of waste and 0.87
kg of pure synthesis gas at steam gasification. The energy efficiency of the waste gasification
process, defined by the ratio between the calorific value of the resultant fuel
gas and the initial calorific value of the waste amounts to 91 % in
air plasma and 98 % in steam plasma. A comparison between the results of
kinetic and thermodynamic calculations has revealed their good agreement.
DOI: 10.1134/S0869864317040126
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