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Effect of torrefaction temperature, residence time and particle size on the properties of torrefied food waste

Ruwaida, Abdul Rasid and Thye, Mei Chin and Mazni, Ismail and Rahsya Nur Udzaifa, Abdul Rahman (2019) Effect of torrefaction temperature, residence time and particle size on the properties of torrefied food waste. Indonesian Journal of Chemistry, 19 (3). pp. 753-760. ISSN 1411-9420 (Print); 2460-1578 (Online)

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Abstract

Municipal solid waste (MSW) in Malaysia mainly consists of food waste. As food waste is of organic compounds, its improper management may cause serious environmental issues, as it may produce greenhouse gases and polluting leachate. Alternative management of the food waste is through its utilization. However, the main issue in the utilization of food waste is its heterogeneity, whereby the diversified cooking methods, as well as food origin, emanates different characteristics. Hence, food waste needs to be pre-treated through the torrefaction process, which is a thermochemical method that converts it to biochar at a temperature between 200–300 °C in an inert environment. The main aim of this work is to evaluate the feasibility of food waste as a potential source of energy through the torrefaction process. The torrefaction of food waste was conducted in a vertical tubular reactor under an inert atmosphere. The results obtained from this study showed that as torrefaction temperature became more severe, the produced torrefied solid is more energy-dense, with apparent higher fixed carbon content and improved heating values. These findings imply that food waste may be able to be utilized as a solid biofuel, with fuel properties comparable to conventional fuels.

Item Type: Article
Additional Information: Indexed by Scopus & WOS
Uncontrolled Keywords: Food waste; Biomass; Torrefaction; Higher heating value; Mass yield
Subjects: T Technology > TD Environmental technology. Sanitary engineering
T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 26 Nov 2019 03:13
Last Modified: 26 Nov 2019 03:13
URI: http://umpir.ump.edu.my/id/eprint/25842
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