Nano-MoO3-modified MCM-22 for methane dehydroaromatization

被引：11

作者：

Hu, Jing ^{[1
]}

Wu, Shujie ^{[1
]}

Li, Zhifang ^{[1
]}

Peng, Ling ^{[1
]}

Fu, Xiaoran ^{[1
]}

Wang, Xiufang ^{[1
]}

Guan, Jingqi ^{[1
]}

Kan, Qiubin ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Changchun 130023, Peoples R China

来源：

APPLIED ORGANOMETALLIC CHEMISTRY | 2015年 / 29卷 / 09期

基金：

中国国家自然科学基金;

关键词：

nano-MoO3; MCM-22; methane; dehydroaromatization; MAS NMR; AROMATIZATION; MO; CATALYSTS; ZEOLITE; MOLYBDENUM; CONVERSION; HYDROGEN; PERFORMANCE; H-ZSM-5;

D O I：

10.1002/aoc.3345

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The work reported was aimed at a simple method to improve the catalytic activity of Mo/HMCM-22 in methane aromatization. The catalysts were characterized using X-ray diffraction, scanning electron microscopy, N-2 adsorption-desorption, NH3 temperature-programmed desorption, infrared spectra of pyridine adsorption, X-ray photoelectron spectroscopy and thermogravimetric analysis. Physicochemical measurements indicated that Mo species with smaller size in HMCM-22 would sublimate more easily and form Mo species at the atomic/molecular level and then interact well with the internal BrOnsted acid sites to form Mo-O-Al active species. Catalytic results confirmed that nano-MoO3-modified HMCM-22 showed higher methane conversion and aromatics yield (13.1 versus 8.9%) than commercial MoO3-modified HMCM-22 (11.0 versus 7.5%). In addition, nano-MoO3-modified HMCM-22 showed better durability compared with commercial MoO3-modified MCM-22. Copyright (c) 2015 John Wiley & Sons, Ltd.

引用

页码：638 / 645

页数：8

共 37 条

[1] Oxygen free conversion of natural gas to useful hydrocarbons and hydrogen over monometallic Mo and bimetallic Mo-Fe, Mo-Co or Mo-Ni/HZSM-5 catalysts prepared by mechanical mixing [J].

Aboul-Gheit, Ahmed K. ;

El-Masry, Mohamed S. ;

Awadallah, Ahmed E. .

FUEL PROCESSING TECHNOLOGY, 2012, 102 :24-29

[2] Methanol to gasoline over zeolite H-ZSM-5: Improved catalyst performance by treatment with NaOH [J].

Bjorgen, Morten ;

Joensen, Finn ;

Holm, Martin Spangsberg ;

Olsbye, Unni ;

Lillerud, Karl-Petter ;

Svelle, Stian .

APPLIED CATALYSIS A-GENERAL, 2008, 345 (01) :43-50

[3] Structure and density of Mo and acid sites in Mo-exchanged H-ZSM5 catalysts for nonoxidative methane conversion [J].

Borry, RW ;

Kim, YH ;

Huffsmith, A ;

Reimer, JA ;

Iglesia, E .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (28) :5787-5796

[4] Effect of the introduction of niobium carbide on non-oxidative dehydro-aromatization of methane over MoMCM-22 [J].

Camacho Rodrigues, Alexandre Carlos ;

Fontes Monteiro, Jose Luiz .

REACTION KINETICS MECHANISMS AND CATALYSIS, 2012, 105 (02) :441-450

[5] Pillared MWW zeolites MCM-36 prepared by swelling MCM-22P in concentrated surfactant solutions [J].

Chlubna, Pavla ;

Roth, Wieslaw J. ;

Zukal, Arnost ;

Kubu, Martin ;

Pavlatova, Jana .

CATALYSIS TODAY, 2012, 179 (01) :35-42

[6] Generation of Mesoporosity in LTA Zeolites by Organosilane Surfactant for Rapid Molecular Transport in Catalytic Application [J].

Cho, Kanghee ;

Cho, Hae Sung ;

de Menorval, Louis-Charles ;

Ryoo, Ryong .

CHEMISTRY OF MATERIALS, 2009, 21 (23) :5664-5673

[7] Amphiphilic organosilane-directed synthesis of crystalline zeolite with tunable mesoporosity [J].

Choi, Minkee ;

Cho, Hae Sung ;

Srivastava, Rajendra ;

Venkatesan, Chithravel ;

Choi, Dae-Heung ;

Ryoo, Ryong .

NATURE MATERIALS, 2006, 5 (09) :718-723

[8] Conversion of methane to aromatics over Mo2C/ZSM-5 catalyst in different reactor types [J].

Cook, Bruce ;

Mousko, Dimitri ;

Hoelderich, Wolfgang ;

Zennaro, Roberto .

APPLIED CATALYSIS A-GENERAL, 2009, 365 (01) :34-41

[9] Low temperature fabrication of hexagon shaped h-MoO3 nanorods and its phase transformation [J].

Dhage, S. R. ;

Hassan, M. S. ;

Yang, O. -Bong .

MATERIALS CHEMISTRY AND PHYSICS, 2009, 114 (2-3) :511-514

[10] Hybrid porous solids:: past, present, future [J].

Ferey, Gerard .

CHEMICAL SOCIETY REVIEWS, 2008, 37 (01) :191-214

← 1 2 3 4 →