Co-Gasification of refuse Derived Fuel Char with Hungarian Brown Coal

Sebe, Emese and Nagy, Gábor and Kállay, András Arnold (2020) Co-Gasification of refuse Derived Fuel Char with Hungarian Brown Coal. Materials Science and Engineering, 45 (1). pp. 252-260. ISSN 2063-6792

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Abstract

Pyrolysis is a promising process for the thermal treatment of residual municipal solid wastes. In this process the final products are composed of synthesis gas (syngas) and pyrolysis char. The char generally has high carbon content thereby it is suitable for further syngas production by gasification. Nowadays syngas is mainly derived from fossil fuels. In this study gasification characteristics of Hungarian brown coal and Refuse Derived Fuel (RDF) char blend were determined in a laboratory bench scale equipment at 900 °C using steam as gasification agent. SEM tests were also carried out in order to determine the surface morphology of the blending materials. The results showed that during co-gasification of brown coal and RDF pyrolysis char the tar formation decreased while the H2 content of the syngas increased compared to the gasification of the individual materials. The EDS spec-trums revealed the presence of alkali and alkaline earth metals, which can have catalytic ef-fect on the gasification.

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