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Influence of Density on Microwave Pyrolysis of Cellulose

AutorFan, J.; Shuttleworth, Peter S.; Gronnow, Mark; Breeden, S. W.; Clark, James H.; Macquarrie, Duncan J.; Budarin, Vitaliy
Palabras claveMicrowave
Pyrolysis
Cellulose
Heating rate
Biorefinery
Sample density
Fecha de publicación2018
EditorAmerican Chemical Society
CitaciónACS Sustainable Chemistry and Engineering 6: 2916-2920 (2018)
ResumenHerein we present the influence of sample density on the microwave induced pyrolysis of crystalline cellulose, with heating rate, biochar and bio-oil yields investigated. This Letter demonstrates that sample density is a fundamental parameter influencing microwave-assisted biomass pyrolysis, with a direct impact on heating rate, the speed of volatiles diffusion through the sample matrix and distribution of products. Of significant interest was that the maximum heating rate and bio-oil yield corresponded to an optimum sample density as a result of heat and mass transfer effects. Increase in density above this value stimulated a rise in biochar yield. The increased understanding of the mechanisms influenced by sample density in a microwave field gives increased ability for users to produce bio-oil or biochar, giving rise to improved microwave-based biorefineries for future energy and chemical needs.
Versión del editorhttp://dx.doi.org/10.1021/acssuschemeng.8b00280
URIhttp://hdl.handle.net/10261/167855
Identificadoresdoi: 10.1021/acssuschemeng.8b00280
issn: 2168-0485
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