Journal
CARBOHYDRATE POLYMERS
Volume 148, Issue -, Pages 390-396Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.04.052
Keywords
Cellulose; [bmim]OTf; Catalytic cracking; Evolution mechanism
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Funding
- National Natural Science Foundation of China [21467011]
- National Major Projects of Science and Technology for Water Pollution Control and Management [2014ZX07105-001]
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This study discussed the catalytic cracking process of cellulose in ionic liquid 1-butyl-3-methylimidazolium trifluoromethanesulfonate ([bmim]OTF) under 180 degrees C, 240 degrees C and 340 degrees C, found that [bmim]OTF is an effective catalyst which can effectively reduce the pyrolysis temperature(nearly 200 degrees C) of the cellulose. FRIR, XRD and SEM were used to analyze the structure characterization of fiber before and after the cracking; GC-MS was used for liquid phase products analysis; GC was used to analyze gas phase products. The results showed that the cellulose pyrolysis in [bmim]OTf mainly generated CO2, CO and H-2, also generated 2-furfuryl alcohol, 2,5-dimethyl-1,5-diallyl-3-alcohol, 1,4-butyrolactone, 5 methyl furfural, 4-hydroxy butyric acid, vinyl propionate, 1-acetoxyl group-2-butanone, furan formate tetrahydrofuran methyl ester liquid product, and thus simulated the evolution mechanism of cellulose pyrolysis products based on the basic model of cellulose monomer. (C) 2016 Elsevier Ltd. All rights reserved.
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