Fixed-Bed Gasification and Pyrolysis of Organic Fraction of MSW Blended with Coal Samples
Tokmurzin, Diyar
Aiymbetov, Berik
Abylkhani, Bexultan
Yagofarova, Almira
Sarbassov, Yerbol
Inglezakis, Vassilis
Venetis, Christos
Poulopoulos, Stavros G.
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Tokmurzin D., Aiymbetov B., Abylkhani B., Yagofarova A., Sarbassov Y., Inglezakis V., Venetis C., Poulopoulos S.G., 2019, Fixed-Bed Gasification and Pyrolysis of Organic Fraction of MSW Blended with Coal Samples, Chemical Engineering Transactions, 72, 163-168.
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Buildup of vast quantities of municipal solid waste (MSW) including refuse derived fuel, organic fraction around the urban areas has negative environmental consequences. Gasification and pyrolysis of municipal solid waste could be an attractive option to utilize or convert to a valuable product. This study investigates the thermochemical properties of refuse derived fuel (RDF), organic fraction of MSW (Org MSW) and coal samples. Along with proximate and elemental analysis, calorific values were provided for RDF, MSW organic fraction, and coal samples. This followed by the thermogravimetric analysis of the same samples. In addition, Org MSW MSW and coal samples were blended in a proportion of 0.5/0.5 and 0.25/0.75 and then thermally treated in horizontal tube furnace both under air and inert gases to investigate the pyrolysis and gasification processes. TGA tests revealed that volatile content from Org MSW and RDF begin to be emitted at temperatures above 180-200 °C. Org MSW and RDF lose all their volatile contents at 500 °C and 700 °C. Pyrolysis experiments revealed that below 500 °C mostly tars are formed from Org MSW. Organic MSW and coal 0.5/0.5 blends yielded higher methane concentrations than coal or MSW alone, reaching 35-37 % at 800 °C. It could be concluded that both fixed bed and thermogravimetric method analysis have provided a good result to investigate the gasification and pyrolysis processes.
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