CARRIER, Marion; LOPPINET-SERANI, Anne; DENUX, Dominique; LASNIER, Jean-Michel; HAM-PICHAVANT, Frédérique; CANSELL, François; AYMONIER, Cyril

doi:10.1016/j.biombioe.2010.08.067

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CARRIER, Marion
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

LOPPINET-SERANI, Anne
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

DENUX, Dominique
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Biomass and Bioenergy. 2011-01-03, vol. 35, n° 1, p. 298-307

Elsevier

Résumé en anglais

Biomass energy uses organic matter such as wood or plants - lignocellulosic biomass - for creating heat, generating electricity and producing green oil for cars. Modem biomass energy recycles organic leftovers from forestry and agriculture, like corn stovers, rice husks, wood waste and pressed sugar cane, or uses special, fast-growing "energy crops" like willow and switchgrass, as fuel. Biomass is composed of three major components: cellulose, hemicelluloses, and lignin. Their differences in chemical structures lead to different chemical reactivities, making the relative composition in cellulose, hemicelluloses and lignin in the biomass a crucial factor for process design. In this paper thermogravimetric analysis is investigated as a new method to obtain lignin, hemicellulose and alpha-cellulose contents in biomass. It is shown that this alternative method lead to comparable results than common methods used for the determination of the alpha-cellulose content, with an enhancement of the accuracy in the determination of the hemicellulose content. Unfortunately, this method cannot be adopted for the determination of the lignin amount.< Réduire

Mots clés en anglais

Lignocellulosic composition

Cellulose

Klason lignin

Chemical wet extraction

Biomass

Thermogravimetric analysis (TGA)

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Thermogravimetric analysis as a new method to determine the lignocellulosic composition of biomass

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