Steam gasification of solid recovered fuel char derived from landfill waste: A kinetic study

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Abstract

A kinetic study of steam gasification of char derived from solid recovered fuel (SRF) was performed. The char was prepared by using pyrolysis and using a nitrogen atmosphere at a temperature of 900°C for 1 h. Gasification in a steam atmosphere was conducted for the char product using isothermal thermogravimetry analysis (TGA). The gasification was carried out at three different temperatures: 800, 850, and 900°C for at least 1 h. The calculation of the kinetic parameters were done by considering the volumetric model, shrinking core model, and random pore model. The results show that the increase of the gasification temperature was linearly correlated to the rise of the reaction rate of the carbon conversion. Moreover, the activation energy of the char reaction is known to range between 58-83 kJ/mol. The kinetic parameters of char gasification were affected by their corresponding SRF component and the char particle size. Also, there were no significant different in the kinetic parameters calculated using the three different models as the difference between the results was less than 3.5 %.

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Zaini, I. N., Yang, W., & Jönsson, P. G. (2017). Steam gasification of solid recovered fuel char derived from landfill waste: A kinetic study. In Energy Procedia (Vol. 142, pp. 723–729). Elsevier Ltd. https://doi.org/10.1016/j.egypro.2017.12.118

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