A study of the pyrolysis behaviors of pelletized recovered municipal solid waste fuels
2013 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 107, 173-182 p.Article in journal (Refereed) Published
Pelletized recovered solid waste fuel is often applied in gasification systems to provide feedstock with a stabilized quality and high heating value and to avoid the bridging behavior caused by high moisture content, low particle density, and irregular particle size. However, the swelling properties and the sticky material generated from pyrolysis of the plastic group components also tend to trigger bridging in the retorting zone. It is well known that the plastic group materials, which occupy a considerable proportion of municipal solid waste, can melt together easily even under low temperature. This study investigates the pyrolysis behaviors of typical recovered solid waste pellets, including the devolatilization rate, heat transfer properties, char properties, and swelling/shrinkage properties, in a small fixed-bed facility over a wide temperature range, from 900 degrees C to 450 degrees C. The results are also compared with those from wheat straw pellets, a typical cellulosic fuel. Moreover, the SEM images and BET analysis of the char structure are further analyzed to provide additional explanation for the mechanisms of swelling/shrinkage phenomena observed during heating.
Place, publisher, year, edition, pages
2013. Vol. 107, 173-182 p.
Fixed-bed gasifier, Municipal solid waste (MSW), Pellet, Pyrolysis, Swelling
Research subject SRA - Energy
IdentifiersURN: urn:nbn:se:kth:diva-123611DOI: 10.1016/j.apenergy.2013.02.029ISI: 000318456700015ScopusID: 2-s2.0-84875195695OAI: oai:DiVA.org:kth-123611DiVA: diva2:628478
QC 201306142013-06-142013-06-132014-10-28Bibliographically approved