Chemical Industry and Engineering Progress ›› 2025, Vol. 44 ›› Issue (S1): 222-231.DOI: 10.16085/j.issn.1000-6613.2024-2116

• Industrial catalysis • Previous Articles    

Hydrodeoxygenation of 1,2-butanediol to 1-butanol over Cu/SiO2-Al2O3 catalyst

LI Junliang(), LI Yue, SUN Daolai()   

  1. College of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China
  • Received:2024-12-30 Revised:2025-03-11 Online:2025-11-24 Published:2025-10-25
  • Contact: SUN Daolai

Cu/SiO2-Al2O3催化1,2-丁二醇加氢脱氧制备1-丁醇

李军良(), 李悦, 孙道来()   

  1. 河北工业大学化工学院,天津 300130
  • 通讯作者: 孙道来
  • 作者简介:李军良(2000—),男,硕士研究生,研究方向为生物质催化转化。E-mail:707316813@qq.com
  • 基金资助:
    河北省自然科学基金(B2023202017)

Abstract:

A series of metal-supported catalysts were prepared via an impregnation method, and their catalytic activities for the hydrodeoxygenation of 1,2-butanediol to 1-butanol were investigated in a batch reactor, among which the Cu/SiO2-Al2O3 catalyst exhibited the highest catalytic activity with both high conversion of 1,2-butanediol and high selectivity to 1-butanol. The effects of metal loading, reaction temperature, H2 pressure, and reaction time were further studied. Under the reaction conditions of 250℃ and 5MPa H2 pressure, the Cu/SiO2-Al2O3 catalyst achieved a 75.9% selectivity to 1-butanol and a 50.7% conversion of 1,2-butanediol within only 15 minutes. After 3 hours of reaction, 1,2-butanediol was completely converted, and the selectivity to 1-butanol increased to 88.9%. Additionally, the Cu/SiO2-Al2O3 catalyst exhibited a good stability, as no significant deactivation was observed after five recycle runs.

Key words: catalyst, 1,2-butanediol, 1-butanol, hydrodeoxygenation, biomass, selectivity

摘要:

通过浸渍法制备了一系列负载型金属催化剂,并在高压反应釜中考察了催化剂对1,2-丁二醇加氢脱氧制备1-丁醇的催化活性。Cu/SiO2-Al2O3催化剂对1,2-丁二醇加氢脱氧制备1-丁醇具有较高的催化活性,可以同时获得较高的1,2-丁二醇转化率和1-丁醇选择性。在此基础上,研究了金属负载量、反应温度、反应压力、反应时间等对反应的影响。在反应温度为250℃、反应压力为5MPa的条件下,使用Cu/SiO2-Al2O3催化剂进行反应仅需15min,1,2-丁二醇的转化率便达到50.7%,1-丁醇的选择性达到75.9%。经过3h的反应后1,2-丁二醇完全转化,1-丁醇的选择性提高至88.9%。此外,Cu/SiO2-Al2O3催化剂的活性稳定,在5次循环实验中无明显失活现象。

关键词: 催化剂, 1,2-丁二醇, 1-丁醇, 加氢脱氧, 生物质, 选择性

CLC Number: 

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