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林产化学与工业 ›› 2018, Vol. 38 ›› Issue (1): 53-58.doi: 10.3969/j.issn.0253-2417.2018.01.008

• 研究报告 • 上一篇    下一篇

碱金属盐对γ-戊内酯/水体系固体酸催化制5-羟甲基糠醛的作用

张奇琳1, 王超1, 张学铭1, 杨桂花2, 许凤1,2   

  1. 1. 北京林业大学 材料科学与技术学院, 北京 100083;
    2. 山东省制浆造纸科学与技术重点实验室, 山东 济南 250353
  • 收稿日期:2017-08-05 出版日期:2018-02-25 发布日期:2018-02-28
  • 通讯作者: 许凤,教授,博士生导师,主要从事生物质资源高值转化为化学品及功能材料研究;E-mail:xfx315@bjfu.edu.cn。 E-mail:xfx315@bjfu.edu.cn
  • 作者简介:张奇琳(1991-),女,黑龙江齐齐哈尔人,硕士生,主要从事生物质能源材料与化学品方面的研究
  • 基金资助:
    “十三五”国家重点研发计划项目资助(2017YFD0601004)

Improving Conversion of Glucose Dehydration to 5-Hydroxymethylfurfural Catalyzed by Solid Acid in γ-Valerolactone/Water with NaCl as Promoter

ZHANG Qilin1, WANG Chao1, ZHANG Xueming1, YANG Guihua2, XU Feng1,2   

  1. 1. College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China;
    2. Shandong Provincial Key Laboratory of Pulp and Paper Science and Technology, Jinan 250353, China
  • Received:2017-08-05 Online:2018-02-25 Published:2018-02-28

摘要: 对新型反应体系γ-戊内酯(GVL)/H2O中添加碱金属盐类促进固体酸Amberlyst 36催化降解葡萄糖制备5-羟甲基糠醛(HMF)进行了研究。重点探讨了碱金属盐的种类与浓度、反应时间、温度、催化剂用量以及体系溶剂比等因素对HMF产率的影响。结果表明:140℃条件下,催化剂用量0.2 g、NaCl浓度0.3 mol/L、溶剂比V(GVL):V(H2O)=5:1、反应60 min,此时HMF产率最高,达47.5%;除硝酸盐对HMF的生成有抑制作用外,加入的其他碱金属盐均能促进葡萄糖催化转化,使HMF产率明显提高;高温、过量的固体酸及过长的反应时间不利于HMF生成;生物质原料如木糖渣在该体系下可直接降解制备HMF,产率可达32.5%,表明该反应体系具有潜在的工业化价值。

关键词: 5-羟甲基糠醛, γ-戊内酯, 固体酸Amberlyst 36

Abstract: The degradation of glucose to produce 5-hydroxymethylfurfural (HMF),which was catalyzed by solid Brønsted acid (Amberlyst 36) with the alkali metal salts as promoters,was studied in the γ-valerolactone (GVL)/water solvent system.In particular,the effects of several elements such as different kinds and concentrations of salts,residence time,temperature,dosage of catalyst and solvent ratio of system on the conversion of glucose to HMF were investigated emphatically.The maximum yield of HMF (47.5%) was obtained under the conditions of 140 ℃,the NaCl concentration 0.3 mol/L,the solvent ratio of GVL and H2O (V(GVL):V(H2O))5:1 and 60 min.Adding alkaline metal salts resulted in a great enhancement in glucose conversion generally whereas the existence of nitrate was detrimental to HMF generation.However,the extremely high temperature,excessive catalyst dosage and residence time would lead to a negative effect on the yield of HMF.Biomass such as xylose residues in this system could be converted directly to HMF with reasonable yield of 32.5 %,which suggests that this system is potential to be industrialized.

Key words: 5-hydroxymethylfurfural, γ-valerolactone, sold acid Amberlyst 36

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