Analysis of Energy Efficiency of Municipal Solid Waste Usage for Thermal and Electrical Energy Production

Abstract

Abstract This work presents a review of ecological map of Leningrad Oblast’ basing on established normative documents. It was established that the ratio of treated and utilized waste does not exceed 5-10% of the total material amount. This states for low degree of municipal solid waste (MSW) recycling. We have carried out analysis and selection of the priority way for MSW recycling. It was shown that usage of MSW as a fuel for thermal and electrical energy production economizes traditional fuel types (coal, gas, mazut). Also it serves for reduction of greenhouse gas emission. It was established that the most perspective method for thermal utilization is waste gasification. According to the world data, the efficiency for syngas production from gasification is about 70%. At this, the remaining portions are physical heat losses as well as chemical and physical energies of the generated tar. Gasification setup modeling was performed using Aspens Plus. The total efficiency of thermal and electrical energy production was 70.5%.