Fluidized-Bed Gasification of Plastic Waste, Wood, and Their Blends with Coal
Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, Second University of Naples, Via Antonio Vivaldi 43, Caserta 81100, Italy
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Author to whom correspondence should be addressed.
Academic Editor: Mehrdad Massoudi
Energies 2015, 8(8), 8052-8068; https://doi.org/10.3390/en8088052
Received: 26 May 2015
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Revised: 23 July 2015
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Accepted: 27 July 2015
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Published: 3 August 2015
(This article belongs to the Special Issue Recent Advances in Coal Combustion and Gasification)
The effect of fuel composition on gasification process performance was investigated by performing mass and energy balances on a pre-pilot scale bubbling fluidized bed reactor fed with mixtures of plastic waste, wood, and coal. The fuels containing plastic waste produced less H2, CO, and CO2 and more light hydrocarbons than the fuels including biomass. The lower heating value (LHV) progressively increased from 5.1 to 7.9 MJ/Nm3 when the plastic waste fraction was moved from 0% to 100%. Higher carbonaceous fines production was associated with the fuel containing a large fraction of coal (60%), producing 87.5 g/kgFuel compared to only 1.0 g/kgFuel obtained during the gasification test with just plastic waste. Conversely, plastic waste gasification produced the highest tar yield, 161.9 g/kgFuel, while woody biomass generated only 13.4 g/kgFuel. Wood gasification showed a carbon conversion efficiency (CCE) of 0.93, while the tests with two fuels containing coal showed lowest CCE values (0.78 and 0.70, respectively). Plastic waste and wood gasification presented similar cold gas efficiency (CGE) values (0.75 and 0.76, respectively), while that obtained during the co-gasification tests varied from 0.53 to 0.73.
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Keywords:
fluidized bed gasifier; co-gasification; plastic waste; wood; coal; mass and energy balances
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MDPI and ACS Style
Zaccariello, L.; Mastellone, M.L. Fluidized-Bed Gasification of Plastic Waste, Wood, and Their Blends with Coal. Energies 2015, 8, 8052-8068. https://doi.org/10.3390/en8088052
AMA Style
Zaccariello L, Mastellone ML. Fluidized-Bed Gasification of Plastic Waste, Wood, and Their Blends with Coal. Energies. 2015; 8(8):8052-8068. https://doi.org/10.3390/en8088052
Chicago/Turabian StyleZaccariello, Lucio, and Maria Laura Mastellone. 2015. "Fluidized-Bed Gasification of Plastic Waste, Wood, and Their Blends with Coal" Energies 8, no. 8: 8052-8068. https://doi.org/10.3390/en8088052
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