化工进展Issue(7)：1902-1907,6.DOI:10.3969/j.issn.1000-6613.2014.07.041
超临界乙醇体系中苯酚催化加氢的降解规律
Degradation behavior of phenol though catalytic hydrogenation in supercritical ethanol
摘要
Abstract
Supercritical ethanol (243.1℃,6.38MPa)has lower temperature and pressure conditions and has good mass transfer performance,so it can serve as a green,renewable solvent in hydrogenation technology. Catalytic hydrogenation under supercritical ethanol system is an effective way to upgrade oil. In this paper,the hydrogenation process of phenol,a typical model compounds in bio-oil,was explored under supercritical ethanol system at 300—400℃ with Pt/C catalyst. This paper investigated the effects such as temperature,hydrogen pressure and reaction time on the degradation of phenol by catalytic hydrogenation in supercritical ethanol. The results showed that higher temperature and hydrogen pressure increased phenol conversion rate,and the effects of temperature was more remarkable. A kinetic model was established based on the results. The model could accurately predict the conversion rate of phenol at different process conditions(R2= 0.989). The results of kinetic investigation indicated that the reaction order of the catalytic hydrogenation of phenol in supercritical ethanol was two,and the activation energy was 51.7kJ/mol.关键词
超临界乙醇/苯酚/催化加氢/动力学模型Key words
supercritical ethanol/phenol/catalytic hydrogenation/kinetic modeling分类
化学化工引用本文复制引用
孙梅娟,黄晓典,关清卿,张春云,柴欣生,田森林,宁平,谷俊杰..超临界乙醇体系中苯酚催化加氢的降解规律[J].化工进展,2014,(7):1902-1907,6.基金项目
国家自然基金（21307049）、云南省高端科技人才引进计划（2010CI110）、云南重大科技专项（2012ZB002）、云南应用基础研究（2013FZ032）、昆明理工大学校人培基金（14118583）项目。 （）
