期刊
WASTE MANAGEMENT & RESEARCH
卷 38, 期 9, 页码 942-965出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0734242X20941085
关键词
Solid recovered fuel; refuse-derived fuel; municipal solid waste; thermogravimetric analysis; compositional analysis; thermal degradation; waste-to-energy
资金
- EPSRC [EP/S017127/1] Funding Source: UKRI
Thermogravimetric analysis (TGA) is the most widespread thermal analytical technique applied to waste materials. By way of critical review, we establish a theoretical framework for the use of TGA undernon-isothermalconditions for compositional analysis of waste-derived fuels from municipal solid waste (MSW) (solid recovered fuel (SRF), or refuse-derived fuel (RDF)). Thermal behaviour of SRF/RDF is described as a complex mixture of several components at multiple levels (including an assembly of prevalent waste items, materials, and chemical compounds); and, operating conditions applied to TGA experiments of SRF/RDF are summarised. SRF/RDF mainly contains cellulose, hemicellulose, lignin, polyethylene, polypropylene, and polyethylene terephthalate. Polyvinyl chloride is also used in simulated samples, for its high chlorine content. We discuss the main limitations for TGA-based compositional analysis of SRF/RDF, due to inherently heterogeneous composition of MSW at multiple levels, overlapping degradation areas, and potential interaction effects among waste components and cross-contamination. Optimal generic TGA settings are highlighted (inert atmosphere and low heating rate (<= 10 degrees C), sufficient temperature range for material degradation (> 750 degrees C), and representative amount of test portion). There is high potential to develop TGA-based composition identification and wider quality assurance and control methods using advanced thermo-analytical techniques (e.g. TGA with evolved gas analysis), coupled with statistical data analytics.
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