欢迎访问《林产化学与工业》，
林产化学与工业

林产化学与工业 ›› 2013, Vol. 33 ›› Issue (2): 66-70.doi: 10.3969/j.issn.0253-2417.2013.02.011

• 研究报告 • 上一篇    下一篇

固体酸SO42-/SnO2催化转化葡萄糖制备乙酰丙酸丁酯

刘娣1, 林鹿2, 曾珊珊1, 彭林才1   

  1. 1. 华南理工大学 制浆造纸工程国家重点实验室, 广东 广州 510640;2. 厦门大学 能源研究院, 福建 厦门 361005
  • 收稿日期:2012-04-10 修回日期:1900-01-01 出版日期:2013-04-30 发布日期:2013-04-30
  • 通讯作者: 林 鹿(1961-),男,教授,博士生导师,研究领域为植物资源化学与生物质转化利用;E-mail:lclulin@scut.edu.cn。

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

PDF (PC)

743

摘要： 以沉淀-浸渍法合成的SO42-/SnO2固体酸为催化剂,于丁醇体系中催化葡萄糖转化合成乙酰丙酸丁酯。考察了不同反应条件以及催化剂的重复利用性对产物得率的影响,并利用XRD和NH3-TPD对使用前后的催化剂的结构和酸性进行了表征。实验结果表明:当催化剂于500 ℃焙烧3 h,用量2.5 %,反应温度200 ℃的条件下反应2 h时,乙酰丙酸丁酯的得率最高达33.1 %(摩尔得率,下同);回收利用的催化剂经过焙烧后使用催化性能有所下降,由最初的33.1 %下降至回用5次后的12.8 %。XRD和NH3-TPD分析结果表明,使用后催化剂的晶型结构仍保留,但酸强度和总酸量随重复使用次数增加却逐渐降低。

关键词: 固体酸SO42-/SnO2, 葡萄糖, 乙酰丙酸丁酯, 催化

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

中图分类号: 

版权所有 © 中国林业科学研究院林产化学工业研究所　苏ICP备08107184号-3