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The present study focuses on the decomposition behavior of biochar. The beta- d -glucoside was investigated as cellulose unit modeled compound by Py-GC/MS for fast pyrolysis. The results indicated that the main products consisted of acids, aldehydes, alcoholic hydroxyls, esters and ethers. The content of functional groups was changed with residence time and temperature but the distribution of beta- d -glucoside pyrolysis products did not vary.
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