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

被引：7
作者：
Yan, Wenjuan [1 ]
Wu, Yuhui [1 ]
Feng, Xiang [1 ]
Yang, Chaohe [1 ]
Jin, Xin [1 ]
Shen, Jian [2 ]
机构：
[1] China Univ Petr, Coll Chem Engn, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R China
[2] Xiangtan Univ, Dept Environm Sci & Engn, Xiangtan 411105, Peoples R China
来源：
CHINESE JOURNAL OF CHEMICAL ENGINEERING | 2018年 / 26卷 / 06期
基金：
中国博士后科学基金;
关键词：
Propylene; Epoxidation; Propylene oxide; TUD-1; Niobium; mesoporous materials; DENSITY-FUNCTIONAL THEORY; MOLECULAR-OXYGEN; PROPENE EPOXIDATION; MECHANISTIC INSIGHTS; EFFICIENT EPOXIDATION; ETHYLENE EPOXIDATION; HYDROGEN-PEROXIDE; PARTIAL OXIDATION; AB-INITIO; OXIDE;
D O I：
10.1016/j.cjche.2018.03.001
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Selective propylene epoxidation to propylene oxide (PO) with hydrogen peroxide (H2O2) 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 H2O2 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. (C) 2018 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
引用
收藏
页码：1278 / 1284
页数：7
相关论文
共 73 条
  • [1] A density functional theory study of propylene epoxidation on RuO2(110) surface
    Atmaca, Deniz Onay
    Duzenli, Derya
    Ozbek, M. Olus
    Onal, Isik
    [J]. APPLIED SURFACE SCIENCE, 2016, 385 : 99 - 105
  • [2] Catalytic activity and thermal stability of Au-CuO/SiO2 catalysts for the low temperature oxidation of CO in the presence of propylene and NO
    Bauer, J. Chris
    Toops, Todd J.
    Oyola, Yatsandra
    Parks, James E., II
    Dai, Sheng
    Overbury, Steven H.
    [J]. CATALYSIS TODAY, 2014, 231 : 15 - 21
  • [3] Titania Morphology-Dependent Gold-Titania Interaction, Structure, and Catalytic Performance of Gold/Titania Catalysts
    Chen, Shilong
    Zhang, Bingsen
    Su, Dangsheng
    Huang, Weixin
    [J]. CHEMCATCHEM, 2015, 7 (20) : 3290 - 3298
  • [4] Gas phase propylene epoxidation over Au supported on titanosilicates with different Ti chemical environments
    Chen, Xuan-Ye
    Chen, Shi-Long
    Jia, Ai-Pin
    Lu, Ji-Qing
    Huang, Wei-Xin
    [J]. APPLIED SURFACE SCIENCE, 2017, 393 : 11 - 22
  • [5] Multimetallic catalysts of RuO2-CuO-Cs2O-TiO2/SiO2 for direct gas-phase epoxidation of propylene to propylene oxide
    Chukeaw, T.
    Seubsai, A.
    Phon-in, P.
    Charoen, K.
    Witoon, T.
    Donphai, W.
    Parpainainar, P.
    Chareonpanich, M.
    Noon, D.
    Zohour, B.
    Senkan, S.
    [J]. RSC ADVANCES, 2016, 6 (61) : 56116 - 56126
  • [6] [丁琳 Ding Lin], 2014, [分子催化, Journal of Molecular Catalysis(China)], V28, P303
  • [7] Propylene epoxidation over biogenic Au/TS-1 catalysts by Cinnamomum camphora extract in the presence of H2 and O2
    Du, Mingming
    Huang, Jiale
    Sun, Daohua
    Li, Qingbiao
    [J]. APPLIED SURFACE SCIENCE, 2016, 366 : 292 - 298
  • [8] A density functional theory study of partial oxidation of propylene on Cu2O(001) and CuO(001) surfaces
    Duzenli, Derya
    Atmaca, Deniz Onay
    Gezer, Miray Gulbiter
    Onal, Isik
    [J]. APPLIED SURFACE SCIENCE, 2015, 355 : 660 - 666
  • [9] Immobilization of a molybdenum-glycine Schiff base complex within the nanocages of zeolite Y with flexible ligand method
    Eghbali, Paria
    Sahin, Ertan
    Masteri-Farahani, Majid
    [J]. JOURNAL OF POROUS MATERIALS, 2017, 24 (01) : 39 - 44
  • [10] Liquid phase propylene epoxidation with H2O2 on TS-1/SiO2 catalyst in a fixed-bed reactor: experiments and deactivation kinetics
    Feng, Wenping
    Wang, Yaquan
    Wu, Guoqiang
    Lin, Yi
    Xu, Juan
    Shi, Hainan
    Zhang, Teng
    Wang, Shuhai
    Wu, Xiaoxue
    Yao, Pengxu
    [J]. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2015, 90 (08) : 1489 - 1496
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