This paper deals with the efficiency of the processes in alternative gas fuels production based on the conversion of biomass and carbonaceous waste using plasma technology. The properties of certain types of these raw materials-wood, medical and municipal solid waste, poultry and livestock waste as well as corn waste-are analyzed from the view point of gasification technologies. It is shown that the processing of certain types of waste involves environmental hazard. The equipment for hazardous waste disposal is briefly presented. The modes of their operation are chosen in view of the requirements associated with the exception of toxicants, tar formation, and sooting. In addition, the conditions of nitric oxide and dioxide formation are analyzed on the basis of kinetic treatment in the case of using air plasma. It is shown that the plasma steam technology has higher energy efficiency characteristics in comparison with steam-oxygen.Index Terms-Alternative gas fuel, dioxins and furans, medical waste, municipal solid waste, nitric oxides, plasma torch, plasma-steam conversion, syngas, waste of poultry and livestock.

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