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Article | REF: BE8535 V3

Wood for energy : Properties and associated technologies

Authors: Xavier DEGLISE, André DONNOT

Publication date: October 10, 2020, Review date: October 1, 2020

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2. Wood composition and properties

2.1 Chemical composition of wood

Wood, an organic material, is composed of three main polymers: cellulose, lignin and hemicelluloses.

Cellulose (figure 9 ), a high-molecular-weight polymer (DP 10000) whose basic element is a cellobiose unit (two glucoses), is present in fibrillar form and forms the structure of the wood cell wall. It accounts for 40-50% of dry matter mass.

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