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林产化学与工业

林产化学与工业 ›› 2012, Vol. 32 ›› Issue (3): 43-46.

• 研究报告 • 上一篇    下一篇

固体酸催化剂SO42-/ZrO2催化木糖制备 呋喃甲醛的研究

戴春爱, 刘博, 颜鲁婷, 刘莲云   

  1. 北京交通大学 理学院 北京 100044
  • 收稿日期:2012-01-19 修回日期:1900-01-01 出版日期:2012-06-30 发布日期:2012-06-30

Conversion of Xylose to Furfural Using Solid Acid SO42-/ZrO2 as Catalyst

DAI Chun-ai, LIU Bo, YAN Lu-ting, LIU Lian-yun   

  1. School of Science, Beijing Jiaotong University, Beijing 100044, China
  • Received:2012-01-19 Revised:1900-01-01 Online:2012-06-30 Published:2012-06-30

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摘要： 为了使呋喃甲醛的制备过程绿色化,以ZrOCl2为原料,利用沉淀-浸渍法初步制备了SO42-/ZrO2固体酸,并应用于催化木糖制备呋喃甲醛的反应。采用L9(34)正交试验确定了适宜的反应条件:木糖质量浓度 10 g/L、催化剂用量 20 g/L、反应温度 220℃、反应时间 3 h。之后采用单因素试验考察了催化剂制备条件对呋喃甲醛产率的影响。得到的催化剂最佳制备条件为:H2SO4浸渍浓度 1.0 mol/L、焙烧温度 550℃、焙烧时间 5 h,呋喃甲醛产率达最大值 47%。实验结果表明:SO42-/ZrO2固体酸在催化木糖制备呋喃甲醛方面,具有较大发展潜力。

关键词: 呋喃甲醛, 木糖, 固体酸SO42-/ZrO2, 沉淀-浸渍法

Abstract: This study mainly focused on green catalysis for furfural production. Solid acid catalyst SO42-/ZrO2 prepared by precipitation-impregnation for furfural production from xylose was studied. The optimal catalytic reaction conditions were determined by L9(34) orthogonal design, and then the preparative conditions of catalyst related to furfural yield such as concentration of sulfuric acid, calcined temperature and calcined time were investigated. The results showed that the optimal catalytic reaction conditions were xylose concentration of 10 g/L, catalyst loading of 20 g/L, reaction temperature of 220℃ and reaction time of 3 h. The optimal preparative conditions of catalyst were: 1 mol/L H2SO4, calcination temperature 550℃, calcination time 5 h. It resulted in the maximum yield of 47%. These results imply that SO42-/ZrO2 is a promising solid acid catalyst for the conversion of xylose to furfural and deserved further investigation.

Key words: furfural, xylose, solid acid SO42-/ZrO2, precipitation-impregnation

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