关键词: 甲基纤维素, 微波裂解, 催化剂, 离子液体

Abstract: Ionic liquid 1-butyl-3-methylimidazolium chloride（IL)was used as an additive for methyl cellulose（MC)pyrolysis under microwave irradiation.The effects of reaction conditions, including IL amount, microwave power and reaction time and catalysts FeCl₃, HNO₃ and 5A-Ca molecular sieve on MC pyrolysis were studied.The results show that components in bio-oils obtained vary with the catalysts. 5A-Ca catalyst could promote formation of small molecules and reduce the oxygen content in product from 37.43% to 34.82%. HNO₃ catalyst could do that of methyl acetate, 1-butanol and methyl benzoate. Furfural and 5-methyl furfural are found for FeCl₃ catalyst.Comparing with conventional pyrolysis, the microwave pyrolysis with IL as additive but without catalysts could have higher yields of bio-oil in a short time.

Key words: methyl cellulose, microwave pyrolysis, catalyst, ionic liquid