Rapid pyrolysis of agricultural residues at high temperature
2002 (English)In: Biomass and Bioenergy, ISSN 0961-9534, Vol. 23, no 5, 357-366 p.Article in journal (Refereed) Published
This paper deals with rapid pyrolysis of agricultural residues such as olive waste and straw at high temperature (800 -1000degreesC) in a free-fall reactor at pilot scale. The conditions are of interest for gasification in fluidized beds where rapid pyrolysis plays an important role as first stage. The objective of the work is to study the effect of the process conditions such as heating rate, temperature and particle size on the product distribution, gas composition and char reactivity. A higher temperature and smaller particles increase the heating rate resulting in a decreased char yield. The cracking of the hydrocarbons with an increase in the hydrogen content is favoured by a higher temperature and by using smaller particles. Wood gives more volatiles and less char than straw and olive waste. The higher ash content in agricultural residues favours the charring reactions. The higher lignin content in olive waste results in a higher char yield in comparison with straw. Chars from olive waste and straw are more reactive in gasification than chars from birch because of the higher ash content.
Place, publisher, year, edition, pages
2002. Vol. 23, no 5, 357-366 p.
agricultural residues, rapid pyrolysis, biomass, straw, olive waste, wood, product distribution, biomass, chars, gasification, peat, wood, kinetics, carbon
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-22005DOI: 10.1016/S0961-9534(02)00061-2ISI: 000178899400005OAI: oai:DiVA.org:kth-22005DiVA: diva2:340703
QC 20100525 QC 20120103 NR 201408042010-08-102010-08-102012-02-02Bibliographically approved