文献类型：期刊文献

中文题名：SO4^2-/ZrO2酸性及其催化液化性能研究

英文题名：Acidity and catalytic property of SO_4^(2-)/ZrO_2 on the hydro-liquefaction of coal

作者：王知彩[1,2];水恒福[1];裴占宁[1];高晋生[2]

机构：[1]安徽工业大学化学与化工学院,安徽省教育厅重点实验室,安徽马鞍山243002;[2]华东理工大学资源与环境学院,上海200237

年份：2008

卷号：36

期号：1

起止页码：10

中文期刊名：燃料化学学报

外文期刊名：Journal of Fuel Chemistry and Technology

收录：CSTPCD;;EI(收录号：20084211647071);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家重点基础研究发展规划(973计划,2006AA05Z314);国家自然科学基金(20676001,20776001)

语种：中文

中文关键词：SO4^2-/ZrO2固体酸;煤液化;酸性;催化

外文关键词：SO4^2-/ZrO2solid acid; hydro-liquefaction of coal; acidity ; catalysis

摘要：通过沉淀-浸渍法制备了一系列SO42-/ZrO2固体酸催化剂,利用NH3-TPD、FT-IR及间歇式高压加氢实验考察了SO42-/ZrO2固体酸的酸性和催化液化性能。对SO42-/ZrO2固体酸的结构进行了XRD、BET及TG/DTA表征。结果表明,SO42-/ZrO2固体酸表面酸中心强度呈非均一化、连续分布,中强酸是SO42-/ZrO2主要的酸中心;煤液化反应中,SO42-/ZrO2固体酸催化作用主要表现为催化裂解,酸中心越强,催化活性越高;提高SO42-/ZrO2焙烧温度,有利于提高酸中心强度及强酸中心分布、增大煤的转化率;650℃焙烧3h,SO2-/ZrO催化活性最高,煤液化转化率达到76.77%。
A series of SO4^2-/ZrO2 solid acid catalysts were prepared by precipitation-impregnation. Its acidity and catalytic property on the hydro-liquefaction of coal were investigated by NH3-TPD and FT-IR analysis. XRD, BET and TG/DTA measurements also were used to characterize the structure of SO4^2-/ZrO2 solid acid. The results indicate that the intensity of acid site on SO4^2-/ZrO2 solid acid is non-homogenous and successive distribution. The acid site of SO4^2-/ZrO2 solid acid is mainly medium-stronger acid. The catalysis of SO4^2-/ZrO2 solid acid on the hydro-liquefaction of coal exhibits mostly its catalytic activity on pyrolysis reaction. The stronger acid site shows higher catalytic activity. Higher calcinations temperature is advantageous to improve the intensity of acid site and the proportion of strong acid site, and increase the conversion of coal. SO4^2-/ZrO2 solid acid calcinated for 3 h at 650 ℃ shows the best catalytic activity and obtains 76.77 % of conversion.