Particle Size Effect of Ru-Zn Catalysts on Selective Hydrogenation of Benzene to Cyclohexene

被引：6

作者：

Sun Haijie ^{[1
,2
]}

Chen Lingxia ^{[2
]}

Huang Zhenxu ^{[2
]}

Liu Shouchang ^{[1
]}

Liu Zhongyi ^{[1
]}

机构：

[1] Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Peoples R China

[2] Zhengzhou Normal Univ, Coll Chem & Chem Engn, Inst Environm & Catalyt Engn, Zhengzhou 450044, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2015年 / 36卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Benzene; Selective hydrogenation; Cyclohexene; Water-soluble polymer; Particle size effect; LIQUID-PHASE HYDROGENATION; RUTHENIUM CATALYSTS; PERFORMANCE; NANOPARTICLES; ZNSO4; XPS;

D O I：

10.7503/cjcu20150288

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ru-Zn catalysts modified by water soluble polymers were prepared by a precipitation method. The catalysts after hydrogenation were characterized by X-ray diffraction, transmission electron microscopy, energy dispersive spectroscopy, X-ray photoelectron spectroscopy and N(2)physisorption. It was found that the type of water-soluble polymers and the dosage of PEG-20000 imposed a remarkable effect on the particle size of Ru. With the Ru particle size in Ru-Zn catalysts increasing, benzene conversion decreased, and the maximum cyclohexene yield showed a volcanic-type variation tendency. When the Ru particle size of the Ru-Zn catalyst modified by 0. 4 g PEG [m ( PEG-20000) : m ( Ru) = 0. 2] was 4. 8 nm, a maximum cyclohexene yield of 62. 2% was obtained on this catalyst. The Ru particle size could produce an effect on the Zn/Ru atomic ratio on the catalyst surface, which was the primary reason why the Ru particle size could affect the performance of Ru-Zn catalysts.

引用

页码：1969 / 1976

页数：8

共 26 条

[1] Ru/SBA-15 catalysts for partial hydrogenation of benzene to cyclohexene: Tuning the Ru crystallite size by Ba [J].

Bu, Juan ;

Liu, Jian-Liang ;

Chen, Xue-Ying ;

Zhuang, Ji-Hua ;

Yan, Shi-Run ;

Qiao, Ming-Hua ;

He, He-Yong ;

Fan, Kang-Nian .

CATALYSIS COMMUNICATIONS, 2008, 9 (15) :2612-2615

[2] Selective hydrogenation of benzene to cyclohexene over RuCoB/γ-Al2O3 without additive [J].

Fan, Guang-Yin ;

Jiang, Wei-Dong ;

Wang, Jin-Bo ;

Li, Rui-Xiang ;

Chen, Hua ;

Li, Xian-Jun .

CATALYSIS COMMUNICATIONS, 2008, 10 (01) :98-102

[3] Partial hydrogenation of benzene on Ru-Zn/SiO2 catalysts [J].

Hu, SC ;

Chen, YW .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2001, 40 (26) :6099-6104

[4]

Huang X, 2010, PROG CHEM, V22, P953

[5] XPS STUDIES OF OXYGEN EVOLUTION ON RU AND RUO2 ANODES [J].

KOTZ, R ;

LEWERENZ, HJ ;

STUCKI, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1983, 130 (04) :825-829

[6] Discrimination of the roles of CdSO4 and ZnSO4 in liquid phase hydrogenation of benzene to cyclohexene [J].

Liu, Jian-Liang ;

Zhu, Yuan ;

Liu, Jun ;

Pei, Yan ;

Li, Zhen Hua ;

Li, Hui ;

Li, He-Xing ;

Qiao, Ming-Hua ;

Fan, Kang-Nian .

JOURNAL OF CATALYSIS, 2009, 268 (01) :100-105

[7] Effect of chlorine on the properties of Ru/Al2O3 [J].

Mazzieri, VA ;

L'Argentière, PC ;

Coloma-Pascual, F ;

Fígoli, NS .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2003, 42 (11) :2269-2272

[8] Selective hydrogenation of benzene to cyclohexene on Ru/gamma-Al2O3 [J].

Milone, C ;

Neri, G ;

Donato, A ;

Musolino, MG .

JOURNAL OF CATALYSIS, 1996, 159 (02) :253-258

[9]

NEFEDOV VI, 1982, J ELECTRON SPECTROSC, V25, P29, DOI 10.1016/0368-2048(82)85002-0

[10] CHARACTERIZATION OF CU-ZN-AL OXIDE CATALYSTS IN THE PRECIPITATED, CALCINED AND REDUCED STATE BY MEANS OF XPS WITH THE HELP OF A FINGER-PRINT DATA-BASE [J].

PEPLINSKI, B ;

UNGER, WES ;

GROHMANN, I .

APPLIED SURFACE SCIENCE, 1992, 62 (03) :115-129

← 1 2 3 →