Catalytic pyrolysis of cellulose in ionic liquid [bmim]OTf. (5th September 2016)

• Record Type: Journal Article
• Authors: Qu, Guangfei; He, Weiwei; Cai, Yingying; Huang, Xi; Ning, Ping
• Is Part Of: Carbohydrate polymers. Volume 148(2016)
• Page Start: 390
• Page End: 396
• Publication Date: 2016-09-05
• Subjects: Cellulose -- [bmim]OTf -- Catalytic cracking -- Evolution mechanism; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2016.04.052
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: Ionic liquid [bmim]OTF is an effective catalyst which can effectively reduce the pyrolysis temperature (nearly 200 °C) of the cellulose. The evolution mechanism of cellulose pyrolysis products under different temperatures was simulated based on the model of glucose monomer. This catalytic [bmim]OTF could be reused for several times without losing activity. Abstract: This study discussed the catalytic cracking process of cellulose in ionic liquid 1-butyl-3-methylimidazolium trifluoromethanesulfonate ([bmim]OTF) under 180 °C, 240 °C and 340 °C, found that [bmim]OTF is an effective catalyst which can effectively reduce the pyrolysis temperature(nearly 200 °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 H2, 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.