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The mechanism for thermal decomposition of cellulose and its main products

Shen, DK and Gu, S (2009) The mechanism for thermal decomposition of cellulose and its main products Bioresource Technology, 100 (24, De). pp. 6496-6504.

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Abstract

Experiment is performed to investigate the mechanism of the cellulose pyrolysis and the formation of the main products. The evolution of the gaseous products is examined by the 3-D FTIR spectrogram at the heating rate of 5–60 K/min. A pyrolysis unit, composed of fluidized bed reactor, carbon filter, vapour condensing system and gas storage, is employed to investigate the products of the cellulose pyrolysis under different temperatures (430–730 °C) and residence time (0.44–1.32 s). The composition in the bio-oil is characterized by GC–MS while the gases sample is analyzed by GC. The effects of temperature and residence time on the main products in bio-oil (LG, 5-HMF, FF, HAA, HA and PA) are examined thoroughly. Furthermore the possible routes for the formation of the products are developed from the direct conversion of cellulose molecules and the secondary reactions of the fragments. It is found that the formation of CO is enhanced with elevated temperature and residence time, while slight change is observed for the yield of CO2.

Item Type: Article
Authors :
AuthorsEmailORCID
Shen, DKUNSPECIFIEDUNSPECIFIED
Gu, SUNSPECIFIEDUNSPECIFIED
Date : 21 July 2009
Funders : ICUK, UK EPSRC
Identification Number : https://doi.org/10.1016/j.biortech.2009.06.095
Grant Title : ICUK Proof of Concept Award
Uncontrolled Keywords : Cellulose, Pyrolysis, TG–FTIR, Levoglucosan, Bio-oil
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 11:00
Last Modified : 28 Mar 2017 11:00
URI: http://epubs.surrey.ac.uk/id/eprint/810602

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