Preparation of solid acid catalyst SO42-/TiO2/γ-Al2O3 for esterification: A study on catalytic reaction mechanism and kinetics

Ying Yuan; Wenwei Jiang; Jinjin Li

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Preparation of solid acid catalyst SO₄^2-/TiO₂/γ-Al₂O₃ for esterification: A study on catalytic reaction mechanism and kinetics

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Preparation of solid acid catalyst SO₄^2-/TiO₂/γ-Al₂O₃ for esterification: A study on catalytic reaction mechanism and kinetics
- Chinese Journal of Chemical Engineering Vol. 27, Issue 11, Pages: 2696-2704(2019)
- Affiliations：
  
  School of Chemical Engineering, Sichuan University,Chengdu,China,610065
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2019
- Accepted：
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DOI：

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摘要

Abstract

In this work

a series of SO

/TiO

/γ-Al

solid acid catalysts were synthesized by impregnation method

in which nano-TiO

was prepared by sol-gel method

and then the nano-TiO

sol was loaded on porous γ-Al

supporter through impregnation. The structure and property of catalyst were characterized by XRD

-BET

SEM

TEM

XPS

-TPD

Pyridine-IR and FT-IR. In addition

the catalyst of chelate bidentate coordination acid center model was established. The catalytic performance test was carried out in the esterification of n-butyl alcohol with lauric acid and the catalyst showed excellent activity. The experimental results showed that the medium strength acid sites were more dominant active sites than the strong and weak acid sites for the rapid esterification reaction. Its kinetic behaviors and activation energy were studied for the esterification under the catalytic reaction condition.

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