Effect of Si-modified zirconia on the properties of MoO3/Si-ZrO2 catalysts for sulfur-resistant CO methanation
作者： Jia Gu , Zhong Xin , Miao Tao , Yuhao Lv , Wenli Gao
DOI: 10.1016/J.APCATA.2019.01.028
关键词: X-ray photoelectron spectroscopy 、 Methanation 、 Catalysis 、 Chemistry 、 Pyridine 、 Infrared spectroscopy 、 Adsorption 、 Inorganic chemistry 、 Specific surface area 、 Physisorption
摘要: Abstract A series of Si-modified ZrO2 supports were prepared by incorporating different content silicon and loaded 25 wt.% MoO3 for sulfur-resistant CO methanation reaction. The catalysts characterized X-ray diffraction (XRD), photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), N2 physisorption measurements, infrared spectra adsorbed pyridine (Py-IR) hydrogen temperature-programmed reduction (H2-TPR). results demonstrated that achieved more stable phase, oxygen vacancies, larger specific surface area Bronsted acid sites. Catalysts modified exhibited smaller metal particles interaction between support, which possessed higher activity with 63.4% conversion 59% CH4 selectivity than unmodified catalyst at 550 °C under 2.5 MPa 100 ppm H2S.
sci-hub.se 参考文章(52)
H. Takano, H. Shinomiya, K. Izumiya, N. Kumagai, H. Habazaki, K. Hashimoto, CO2 methanation of Ni catalysts supported on tetragonal ZrO2 doped with Ca2+ and Ni2+ ions International Journal of Hydrogen Energy. ,vol. 40, pp. 8347- 8355 ,(2015) , 10.1016/J.IJHYDENE.2015.04.128
Lei He, Qingquan Lin, Yu Liu, Yanqiang Huang, Unique catalysis of Ni-Al hydrotalcite derived catalyst in CO2 methanation: cooperative effect between Ni nanoparticles and a basic support Journal of Energy Chemistry. ,vol. 23, pp. 587- 592 ,(2014) , 10.1016/S2095-4956(14)60144-3
S. Damyanova, P. Grange, B. Delmon, Surface characterization of zirconia-coated alumina and silica carriers Journal of Catalysis. ,vol. 168, pp. 421- 430 ,(1997) , 10.1006/JCAT.1997.1671
Shuhei Uchiyama, Toshihiro Isobe, Sachiko Matsushita, Kiyotaka Nakajima, Michikazu Hara, Akira Nakajima, None, Preparation of porous spherical ZrO2–SiO2 composite particles using templating and its solid acidity by H2SO4 treatment Journal of Materials Science. ,vol. 47, pp. 341- 349 ,(2012) , 10.1007/S10853-011-5803-2
Robert Andersson, Magali Boutonnet, Sven Järås, Higher alcohols from syngas using a K/Ni/MoS2 catalyst : Trace sulfur in the product and effect of H2S-containing feed Fuel. ,vol. 115, pp. 544- 550 ,(2014) , 10.1016/J.FUEL.2013.07.057
Jiaying Zhang, Zhong Xin, Xin Meng, Yuhao Lv, Miao Tao, Effect of MoO3 on Structures and Properties of Ni-SiO2 Methanation Catalysts Prepared by the Hydrothermal Synthesis Method Industrial & Engineering Chemistry Research. ,vol. 52, pp. 14533- 14544 ,(2013) , 10.1021/IE401708H
Myoung Yeob Kim, Seung Bong Ha, Dong Jun Koh, Changdae Byun, Eun Duck Park, CO methanation over supported Mo catalysts in the presence of H2S Catalysis Communications. ,vol. 35, pp. 68- 71 ,(2013) , 10.1016/J.CATCOM.2013.02.004
B. Guichard, M. Roy-Auberger, E. Devers, C. Legens, P. Raybaud, Aging of Co(Ni)MoP/Al2O3 catalysts in working state Catalysis Today. ,vol. 130, pp. 97- 108 ,(2008) , 10.1016/J.CATTOD.2007.09.007
N NAHAS, P AFANASIEV, C GEANTET, M VRINAT, F WISS, S DAHAR, On the mechanism of zirconia textural stabilization by siliceous species during digestion under basic conditions Journal of Catalysis. ,vol. 247, pp. 51- 60 ,(2007) , 10.1016/J.JCAT.2007.01.009
Haichao Liu, Patricia Cheung, Enrique Iglesia, Zirconia-Supported MoOx Catalysts for the Selective Oxidation of Dimethyl Ether to Formaldehyde: Structure, Redox Properties, and Reaction Pathways Journal of Physical Chemistry B. ,vol. 107, pp. 4118- 4127 ,(2003) , 10.1021/JP0221744