大学化学 >> 2020, Vol. 35 >> Issue (4): 37-42.doi: 10.3866/PKU.DXHX201912008

所属专题: 全国大学生化学实验创新设计竞赛

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KF/La2O2CO3固体碱的制备、表征及催化酯交换反应的性能——一个综合创新实验

牛晓宇, 李志斌, 王凯, 方雅玲, 陈竞, 朱宇君()   

  • 收稿日期:2019-12-02 录用日期:2019-12-16 发布日期:2020-02-13
  • 通讯作者: 朱宇君 E-mail:yujunzhu@hlju.edu.cn
  • 基金资助:
    黑龙江大学新世纪教育教学改革工程项目;黑龙江大学"课程思政"建设试点课程(无机化学实验);黑龙江省高等教育教学改革研究项目(SJGY20190491)

Preparation, Characterization and Catalytic Transesterification Performance of KF/La2O2CO3 as Solid Base Catalyst: A Comprehensive Innovation Experiment

Niu Xiaoyu, Li Zhibin, Wang Kai, Fang Yaling, Chen Jing, Zhu Yujun()   

  • Received:2019-12-02 Accepted:2019-12-16 Published:2020-02-13
  • Contact: Zhu Yujun E-mail:yujunzhu@hlju.edu.cn

摘要:

固体碱催化剂具有易分离、可循环使用、对设备无腐蚀、可使反应工艺过程连续化等优点。它被认为是催化酯交换反应制备可再生能源生物柴油的一种优异催化剂。本实验是在科研成果的基础上创新设计了一个综合实验。通过浸渍法制备了KF/La2O2CO3固体碱催化剂;利用X射线衍射测定了其物相,使用CO2程序升温脱附技术测定了催化剂的表面碱性;并以三丁酸甘油酯与甲醇进行酯交换反应作为模型反应,考查其催化活性。

关键词: KF/La2O2CO3固体碱, 酯交换, 三丁酸甘油酯, 丁酸甲酯, 综合创新实验

Abstract:

Solid base is considered to be an excellent catalyst for the preparation of renewable energy biodiesel by transesterification. In this paper, a comprehensive experiment is designed on the basis of scientific research results. KF/La2O2CO3 solid base catalyst was prepared by impregnation method, and its phase and surface basicity were measured by X-ray diffraction and temperature programmed desorption with CO2, respectively. In addition, the catalytic activity of KF/La2O2CO3 was tested by using the transesterification of tributyrin and methanol as a model reaction.

Key words: KF/La2O2CO3 solid base, Transesterification, Tributyrin, Methyl butyrate, Comprehensive innovation experiment

MSC2000: 

  • G64.423