石油化工高等学校学报 ›› 2022, Vol. 35 ›› Issue (1): 29-34.DOI: 10.3969/j.issn.1006-396X.2022.01.005

• 催化剂及催化材料 • 上一篇    下一篇

CuO⁃SiO2⁃CeO2催化剂的设计、制备及性能研究

卢畅(), 张财顺, 刘道胜, 张磊(), 高志贤   

  1. 辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
  • 收稿日期:2021-03-25 修回日期:2021-04-11 出版日期:2022-02-28 发布日期:2022-04-14
  • 通讯作者: 张磊
  • 作者简介:卢畅(1995⁃),男,硕士研究生,从事纳米催化材料研究;E⁃mail:1730366567@qq.com
  • 基金资助:
    国家自然科学基金项目(21376237);辽宁省博士科研启动基金项目(201601322)

Design,Preparation and Performance of CuO⁃SiO2⁃CeO2 Catalyst

Chang Lu(), Caishun Zhang, Daosheng Liu, Lei Zhang(), Zhixian Gao   

  1. School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
  • Received:2021-03-25 Revised:2021-04-11 Published:2022-02-28 Online:2022-04-14
  • Contact: Lei Zhang

摘要:

采用水热合成法制备了SiO2?CeO2载体,并利用浸渍法负载活性组分CuO得到CuO?SiO2?CeO2催化剂。通过XRD、BET和H2?TPR等手段对载体和催化剂进行表征及性能测试,最后探究了SiO2摩尔分数对催化剂的比表面积以及甲醇水蒸气重整制氢实验中催化性能的影响。研究发现,适量添加SiO2可以增加载体和催化剂的比表面积,降低催化剂活性组分CuO的还原温度,提高CH3OH的转化率。当SiO2摩尔分数为2.5%时,催化剂CuO5.0%?SiO22.5%?CeO2的比表面积为112.8 m2/g,CH3OH转化率为75.1%。继续提高催化剂中SiO2的摩尔分数,催化剂的比表面积减小,CH3OH转化率降低。

关键词: 甲醇水蒸气重整, CeO2, 水热合成法, 催化剂制备

Abstract:

SiO2?CeO2 carriers were prepared by hydrothermal synthesis method,and CuO?SiO2?CeO2 catalysts were synthesized by impregnation method with active component CuO.The carriers and catalysts were characterized by XRD,BET and H2?TPR methods.The effects of the addition amount of SiO2 for the specific surface area of the catalyst and the catalytic performance of the catalysts in methanol steam reforming for hydrogen production were also investigated.The obtained results indicated that appropriate addition of SiO2 can increase the specific surface area of the support and catalyst,reduce reduction temperature of the active component CuO,and increase the conversion rate of CH3OH.When the amount of SiO2 is 2.5%,the specific surface area of CuO5.0%?SiO22.5%?CeO2 is 112.8 m2/g,and the conversion rate of CH3OH is 75.1%.Both of the specific surface of the catalyst and the conversion rate of CH3OH will decrease with the content of SiO2 continue to improving in the catalyst.

Key words: Methanol steam reforming, CeO2, Hydrothermal synthesis method, Catalyst preparation

中图分类号: 

引用本文

卢畅, 张财顺, 刘道胜, 张磊, 高志贤. CuO⁃SiO2⁃CeO2催化剂的设计、制备及性能研究[J]. 石油化工高等学校学报, 2022, 35(1): 29-34.

Chang Lu, Caishun Zhang, Daosheng Liu, Lei Zhang, Zhixian Gao. Design,Preparation and Performance of CuO⁃SiO2⁃CeO2 Catalyst[J]. Journal of Petrochemical Universities, 2022, 35(1): 29-34.

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