Hydrogenation of nitrobenzene to p-aminophenol using Pt/C catalyst and carbon-based solid acid

被引：43

作者：

Liu, Yingxin ^{[1
]}

Fang, Yanyan ^{[1
]}

Lu, Xiaolei ^{[1
]}

Wei, Zuojun ^{[2
]}

Li, Xiaonian ^{[3
]}

机构：

[1] Zhejiang Univ Technol, Coll Pharmaceut Sci, Res & Dev Base Catalyt Hydrogenat, Hangzhou 310032, Zhejiang, Peoples R China

[2] Zhejiang Univ, Minist Educ, Key Lab Biomass Chem Engn, Hangzhou 310027, Peoples R China

[3] Zhejiang Univ Technol, Coll Chem Engn & Mat, Inst Ind Catalysis, Hangzhou 310032, Zhejiang, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2013年 / 229卷

基金：

中国国家自然科学基金;

关键词：

Nitrobenzene hydrogenation; p-Aminophenol; Bamberger rearrangement; Carbon-based solid acid; Hydrothermal carbonization; SIZED NICKEL-CATALYSTS; NITROPHENOL HYDROGENATION; AMORPHOUS-CARBON; HYDROTHERMAL CARBONIZATION; EFFICIENT CATALYST; BEARING SO3H; OLEIC-ACID; OH GROUPS; ESTERIFICATION; PERFORMANCE;

D O I：

10.1016/j.cej.2013.05.114

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Liquid phase hydrogenation of nitrobenzene to p-aminophenol (PAP) in water was studied over a catalyst system composed of Pt/C and carbon-based solid acid which was prepared by one-step hydrothermal carbonization of various carbon sources including starch, sucrose, glucose and furfural in sulfuric acid aqueous solution at 180 degrees C for 4 h. The effects of carbon-based solid acid type, Pt/C catalyst loading, hydrogen pressure and reaction temperature on nitrobenzene conversion and PAP selectivity were investigated. The results showed that PAP selectivity was favored at high acid density of the carbon-based solid acid. The carbon-based solid acid prepared from starch, with the highest SO3H amount, gave the highest PAP selectivity among the catalysts used. An increase in Pt/C catalyst loading led to an increased nitrobenzene conversion but a decreased PAP selectivity. A high reaction temperature was in favor of nitrobenzene conversion and PAP selectivity. Under the optimal reaction conditions, nitrobenzene conversion and PAP selectivity reached 61.0% and 77.8%, respectively. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：105 / 110

页数：6

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