Hydrogenation of nitrobenzene to aniline on amorphous Ni-Mo-P catalysts and mechanism of catalyst deactivation

被引：0

作者：

机构：

[1] School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, Guangdong

[2] School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi

来源：

Liu, Z. (gzdxlzl@gmail.com) | 1600年 / Chemical Industry Press卷 / 63期

关键词：

Amorphous Ni-P catalyst; Aniline; Hydrogenation; Mo modification; Nitrobenzene;

D O I：

10.3969/j.issn.0438-1157.2012.01.017

中图分类号：

学科分类号：

摘要：

The process of nitrobenzene hydrogenation to aniline using an amorphous Ni-Mo-P alloy as the catalyst and the deactivation mechanism of the amorphous Ni-Mo-P alloy catalyst were studied. Investigation of the effects of reaction time, temperature, and hydrogen pressure on nitrobenzene hydrogenation to aniline using the Ni-Mo-P catalyst revealed optimum conditions as 90 min, 383 K, and 1.8 MPa. Under these conditions, the yield of aniline reached 98.2% using the amorphous Ni-Mo-P catalyst after nitrobenzene hydrogenation for 15 h, indicating excellent activity stability of the amorphous Ni-Mo-P catalyst. Deactivation of the amorphous Ni-Mo-P catalyst was due mainly to nitrobenzene hydrogenation byproducts covering the catalyst activity sites, which made it difficult for reactant molecules to access the catalyst activity sites and was highly unfavorable to the catalytic reaction. © All Rights Reserved.

引用

页码：121 / 126

页数：5

共 15 条

[1] Huang H., Zhou J., Xu J., Guo Z., Synthesis and properties of conducting polyaniline doped with compound organic/inorganic acids, Journal of Chemical Engineering of Chinese Universities, 23, 6, pp. 984-989, (2009)
[2] Li M., Ma C., Zhang J., Preparation and properties of polyaniline-poly(propylene oxide, Journal of Chemical Industry and Engineering(China), 57, 31, pp. 688-692, (2006)
[3] Yu D., Chen M., Pi P., Wen X., Cheng J., Yang Z., Preparation and electromagnetic characteristics of the polyaniline-coated short carbon fibers, Journal of Chemical Engineering of Chinese Universities, 23, 1, pp. 148-151, (2009)
[4] Zhang C., Progress in preparation of aniline by catalytic hydrogenation of nitrobenzene in liquid phase, Modern Chemical Industry, 27, 12, pp. 11-14, (2007)
[5] Meng X., Cheng H., Akiyama Y., Hao Y., Qiao W., Yu Y., Zhao F., Fujita S., Arai M., Selective hydrogenation of nitrobenzene to aniline in dense phase carbon dioxide over Ni/γ-Al 2O 3: Significance of molecular interactions, Journal of Catalysis, 264, 1, pp. 1-10, (2009)
[6] Yuan J., Lu W., Zhou Z., Study on Pd-catalyst used for hydrogenation of fluorine-containing aromatic nitro-compounds, Chemical Industry and Engineering Progress, 27, 2, pp. 241-244, (2008)
[7] Lee S.P., Chen Y.W., Catalytic properties of Ni-B and Ni-P ultrafine materials, Journal of Chemical Technology and Biotechnology, 75, 11, pp. 1073-1079, (2000)
[8] Zhao Q., Wang M., Li H., Li H., Microwave-assisted preparation of Ni-B/SiO 2 amorphous catalyst and its catalytic performance in nitrobenzene hydrogenation, Journal of Molecular Catalysis, 20, 3, pp. 230-234, (2006)
[9] Li H., Zhang S., Luo H., A Ce-promoted Ni-B amorphous alloy catalyst(Ni-Ce-B) for liquid-phase furfural hydrogenation to furfural alcohol, Materials Letters, 58, 22-23, pp. 2741-2746, (2004)
[10] Liu Z., Liu Q., Wang P., Huang P., Zeng L., Promotion effect of Zn on amorphous Co-B alloy and their catalytic performance for selective hydrogenation of cinnamaldehyde to cinnamyl alcohol, Journal of Molecular Catalysis, 21, 2, pp. 115-121, (2007)

← 1 2 →