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Pyrolysis and char reactivity of a poor-quality refuse-derived fuel (RDF) from municipal solid waste
| Content Provider | Semantic Scholar |
|---|---|
| Author | Manyà, Joan J. García-Ceballos, Fernando Azuara, M. Latorre, Núria Royo, Conxita |
| Copyright Year | 2015 |
| Abstract | Abstract The present study focuses on analyzing the pyrolysis and combustion behaviors of a refuse-derived fuel (RDF), which is generated in a MSW treatment plant located in Zaragoza (Spain). Pyrolysis experiments were carried out in a TGA apparatus and a fixed-bed reactor at different peak temperatures (400 and 600 °C) and heating rates (5 and 40 °C min − 1 ). The reactivity towards oxygen of produced chars was also measured in the same TGA device at a heating rate of 10 °C min − 1 and a final temperature of 800 °C. Pyrolysis results were significantly affected by peak temperature and heating rate. The found effect of peak temperature on char and fixed-carbon yields as well as on measured properties (H:C and O:C ratios, BET surface area and average pore diameter) was in agreement with previous studies. However, the effect of heating rate, especially on the release rate of volatiles, could be explained by a change in the pyrolysis reaction scheme. The RDF-derived chars obtained at the highest heating rate showed a higher reactivity in air. In addition, an increase in peak temperature also led to a higher reactivity. This result can indicate that the carbon present in the RDF-derived char is dispersed within an ash matrix containing a high number of active sites, the distribution of which could be improved when heating rate (and, to a lesser extent, peak temperature) is increased. The addition of 10 wt.% RDF to two-phase olive mill waste prior to slow pyrolysis led to an apparent increase in the carbonization efficiency as well as to an enhancement of the resultant char's reactivity in air. |
| Starting Page | 276 |
| Ending Page | 284 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.fuproc.2015.09.014 |
| Volume Number | 140 |
| Alternate Webpage(s) | http://zaguan.unizar.es/record/47432/files/texto_completo.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.fuproc.2015.09.014 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
