Abstract

The waste management in Greece is a very important issue by virtue of the increasing of waste material. This paper is concerned with the efficiency evaluation of a plasma gasification process using RDF (Residual Derived Fuel) to produce Syngas. Plasma gasification is an advanced waste management and thermal treatment technology with exceptional environmental and energy performance. This process converts materials such as coal, biomass or other organic waste into carbon monoxide and hydrogen using very high temperatures with an amount of oxygen and/or steam (Leal-Quiros, 2004).

Regarding to the previous studies and using a previous thermodynamic chemical equilibrium model, we devised a new to be appropriate for the RDF to study the efficiency of the plasma gasification process. The total amount of waste materials was supposed 300 tn/day and the produced synthesis gas was composed of CO, H₂, CH₄, H₂O, CO₂, N₂, S and H₂S. Then, at constant temperature and humidity parameters and oxygen, using the results of thermodynamic analysis, is calculated the efficiency of the process according to the thermodynamics laws.

Conclusively, the thermodynamic modeling of plasma gasification process for the RDF treatment resulted in positive energy values. These energy results, along with the environmental characteristics of the process, demonstrate that the plasma gasification process is very useful technology for waste treatment and electricity production.

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