Selective propylene epoxidation in liquid phase using highly dispersed Nb catalysts incorporated in mesoporous silicates

Wenjuan Yan; Yuhui Wu; Xiang Feng; Chaohe Yang; Xin Jin; Jian Shen

doi:10.1016/j.cjche.2018.03.001

Your Location：

Home >

Browse articles >

Selective propylene epoxidation in liquid phase using highly dispersed Nb catalysts incorporated in mesoporous silicates

Catalysis | Updated：2026-01-06

- Selective propylene epoxidation in liquid phase using highly dispersed Nb catalysts incorporated in mesoporous silicates
- Chinese Journal of Chemical Engineering Issue 6, Pages: 1278-1284(2018)
- Affiliations：
  
  1. State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum,Qingdao,China,266580
  2. 2 Department of Environmental Science and Engineering, Xiangtan University,Xiangtan,China,411105
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.03.001
  CLC：
- Published：2018
- Accepted：
Scan QR Code
Wenjuan Yan, Yuhui Wu, Xiang Feng, et al. Selective propylene epoxidation in liquid phase using highly dispersed Nb catalysts incorporated in mesoporous silicates[J]. Chinese Journal of Chemical Engineering, 2018, (6): 1278-1284.
DOI：

Wenjuan Yan, Yuhui Wu, Xiang Feng, et al. Selective propylene epoxidation in liquid phase using highly dispersed Nb catalysts incorporated in mesoporous silicates[J]. Chinese Journal of Chemical Engineering, 2018, (6): 1278-1284. DOI： 10.1016/j.cjche.2018.03.001.

摘要

Abstract

Selective propylene epoxidation to propylene oxide (PO) with hydrogen peroxide (H

) was carried out in a catalytic semi-batch reactor. High propylene epoxidation activity (44 h

-1

) was observed over Nb based mesoporous silicate materials Nb-TUD-1 under mild operating conditions. The physical and chemical properties of the Nb based silicates characterized using BET

FTIR

TPD

TEM and UV-Vis revealed that the site isolation and surface acidity are crucial for PO production. Catalyst synthesis methods were investigated for their effects on PO productivity

PO selectivity and H

utilization efficiency. It is found that Nb-TUD-1 material synthesized by the sol-gel method is more active and selective than impregnated materials for liquid phase propylene epoxidation. Surface characterization confirms that thus synthesized Nb-TUD-1 catalysts have more Lewis acidity and less Bronsted acidity compared to the catalysts by impregnation.

关键词

Keywords

references

Views

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Liquid-phase epoxidation of propylene with molecular oxygen by chloride manganese meso-tetraphenylporphyrins

Highly selective separation of propylene/propane mixture on cost-effectively four-carbon linkers based metal-organic frameworks

Simulation and design of a heat-integrated double-effect reactive distillation process for propylene glycol methyl ether production

The effect of the Ce content on the oxidative dehydrogenation of propane over CrOy-CeO2/γ-Al2O3 catalysts

A high propylene productivity over B2O3/SiO2@honeycomb cordierite catalyst for oxidative dehydrogenation of propane

Related Author

Hong-Bing Ji

Yang Li

Ling-Ling Wang

Xian-Tai Zhou

Qibin Xia

Daofei Lv

Junhao Xu

Pingjun Zhou

Related Institution

School of Chemical Engineering, Guangdong University of Petrochemical Technology

Fine Chemical Industry Research Institute, School of Chemistry, Sun Yat-sen University

Fine Chemical Industry Research Institute, School of Chemical Engineering and Technology, Sun Yat-sen University

Sichuan Jinyuansheng New Energy Technology Co., Ltd

School of Chemistry and Chemical Engineering, South China University of Technology

⁰