University Chemistry ›› 2022, Vol. 37 ›› Issue (5): 2112028.doi: 10.3866/PKU.DXHX202112028

Special Issue: 第2届全国大学生化学实验创新设计竞赛

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Effect of Acid Property and Pore Structure of Zeolite β for Isomerization of α-Pinene

Hanyue Gong1, Houguang Wang1, Chengbin Xu2, Fuping Tian1, Yanjuan Zhang1,*()   

  1. 1 School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning Province, China
    2 Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning Province, China
  • Received:2021-12-07 Accepted:2021-12-10 Published:2022-04-19
  • Contact: Yanjuan Zhang E-mail:zhangyanjuan@dlut.edu.cn

Abstract:

Advanced Physical Chemistry Lab is a mandatory course for undergraduate students majored in chemistry at our university, in which the preparation and characterization of catalysts is an indispensable part. This study improves upon the original "The Analysis of the Acid Property of Materials by NH3-TPD Method" and "Measurement of Catalytic Activity and Selectivity of the Catalyst" experiments. The original experiments involve the effect of reaction temperatures and reaction times on the catalytic activity and selectivity of a single catalyst, as well as the principles of NH3-TPD methods and the measurement of the acidic properties of materials. Conversely, the improved experiment focuses on the connection between the acidic properties and pore structure of the catalytic performance by comparing the catalytic performance of three different catalysts under the same reaction conditions. In addition, the improved experiment takes advantages of the results of the N2 physical adsorption experiment, so that students can comprehensively understand the preparation, modification, and characterization technology of catalysts and have a clearer understanding of the factors affecting the catalytic performance of catalysts. The purpose is to enable students to integrate the theoretical knowledge in related courses and have a deeper understanding of the principle of zeolite β, which plays a catalytic role in the transformation of large reactants.

Key words: Zeolite β, Acid property, Porous structure, Isomerization of α-pinene

MSC2000: 

  • G64