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http://hdl.handle.net/1942/16744
Title: | Pyrolysis characteristics of excavated waste material processed into refuse derived fuel | Authors: | Bosmans, Anouk DE DOBBELAERE, Christopher Helsen, Lieve |
Issue Date: | 2014 | Source: | FUEL, 122, p. 198-205 | Abstract: | The pyrolysis characteristics of refuse derived fuel (RDF) processed from excavated landfill waste are investigated by thermogravimetric analysis combined with a MATLAB optimization study to determine chemical kinetic parameters. Waste samples – a mix of municipal and industrial waste – with particle sizes between 150 and 250 lm are heated to 800 C at a heating rate of 10 C min 1. The independent parallel first-order reactions model is used for the kinetic analysis. Four parallel reactions describe the thermal degradation behavior of the waste material. The calculated kinetic parameters (activation energy E = 100, 149, 99, 353 kJ mol 1, resp.) for the four identified fractions (hemicellulose, cellulose, and two types of plastic) did not fully agree with experimental studies available in the literature for fresh waste materials. The first fraction closely resembles hemicellulose. The second fraction is similar to cellulose, but the broad peak could indicate that lignin degradation is also covered. The behavior of the third fraction (i.e. the least stable plastics) deviates from literature data. This is explained by the partial overlap between the decomposition range of the second and third fraction. The fourth fraction decomposes in the same way as the stable plastics. The characteristics of the excavated waste (composition, age, possible catalytic effect of mineral matter and metals, etc.) could provide an explanation for the differences observed when comparing with fresh waste. | Keywords: | refuse derived fuel; enhanced landfill mining; pyrolysis; TGA; kinetics | Document URI: | http://hdl.handle.net/1942/16744 | ISSN: | 0016-2361 | e-ISSN: | 1873-7153 | DOI: | 10.1016/j.fuel.2014.01.019 | ISI #: | 000331544100022 | Rights: | © 2014 Elsevier Ltd. All rights reserved. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2015 |
Appears in Collections: | Research publications |
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