Recycling technologies gained increased importance in the past decades, since environmental issues and the questions of depleting natural resources. Wastes may be considered as resources of valuable secondary raw materials. This literature review aims at compiling the information available on questions arising from the differences between the chemical composition of traditional fuels and chemical industrial raw materials, together with the analytical chemical methods being able to answer these questions. Issues of technical optimisation, the composition of end-products, and their dependence on the technical parameters of pyrolysis will also be discussed.
Experiences obtained in the pyrolysis pilot plant during the Szent István University's pyrolysis research project are described. Eight different raw wastes were treated in a pyrolysis pilot plant in Mezőberény. Test results obtained are suitable as reference in connection with the quality of end products. It is also useful in examining how the environmental emission values of this kind of plants can comply with national legal requirements. By using the objective test results and experiences from operating model conditions, our research group is able to analyze and evaluate test results of a similar system in the following.
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