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›› 2013, Vol. 33 ›› Issue (2): 66-70.doi: 10.3969/j.issn.0253-2417.2013.02.011

• 研究报告 • Previous Articles     Next Articles

Conversion of Glucose into Butyl Levulinate over Solid Acid SO42-/SnO2 Catalyst

LIU Di1, LIN Lu2, ZENG Shan-shan1, PENG Lin-cai1   

  1. 1. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China;2. School of Energy Research, Xiamen University, Xiamen 361005, China
  • Received:2012-04-10 Revised:1900-01-01 Online:2013-04-30 Published:2013-04-30

Abstract: Solid acid catalysts SO42-/SnO2 were prepared by precipitation and impregnation method for conversion of glucose to butyl levulinate in butanol. The effects of different reaction conditions and catalyst reuse on yields of butyl levulinate were also investigated. The surface structure and acidity of the fresh and reused catalysts were characterized by XRD and NH3-TPD. The results indicated that butyl levulinate yield of 33.1% could be obtained under the conditions of the catalyst calcined at 500 ℃ for 3 h, catalyst dosage 2.5 %, reaction temperature 200 ℃ and reaction time 2 h. And the catalytic performance for the reused catalysts after calcinations decreased from 33.1% to 12.8% after the fifth reuse. XRD and NH3-TPD results showed that crystallization structure of catalyst was preserved well after reuse, but the acid strength and total amounts of acid were decreased slightly with the increase of the number of reuse.

Key words: solid acid SO42-/SnO2, glucose, butyl levulinate, catalysis

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