title: Enhancing the combustible properties of bamboo by torrefaction.
abstract: Bamboo has wide range of moisture content, low bulk energy density and is difficult to transport, handle, store and feed into existing combustion and gasification systems. Because of its important fuel characteristics such as low ash content, alkali index and heating value, bamboo is a promising energy crop for the future. The aim of this study was to evaluate the effects of torrefaction on the main energy properties of Bambusa vulgaris. Three different torrefaction temperatures were employed: 220, 250 and 280°C. The elemental characteristics of lignite and coal were compared to the torrefied bamboo. The characteristics of the biomass fuels tend toward those of low rank coals. Principal component analysis of FTIR data showed a clear separation between the samples by thermal treatment. The loadings plot indicated that the bamboo samples underwent chemical changes related to carbonyl groups, mostly present in hemicelluloses, and to aromatic groups present in lignin.
authors.affiliation: UPR 42 Biomass Energy, Agricultural Research for Development, Cirad-SFB, Brasilia DF 70818-900, Brazil. patrick.rousset@cirad.fr
authors.forename: Patrick
authors.initials: P
authors.lastname: Rousset
authors.forename: Clarissa
authors.initials: C
authors.lastname: Aguiar
authors.forename: Nicole
authors.initials: N
authors.lastname: Labbé
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Commandré
mesh_terms: D018533:Biomass; D018556:Crops, Agricultural; D031787:Sasa / Q000378:metabolism*; D013696:Temperature