太原理工大学学报2017，Vol.48Issue(1)：25-29,5.DOI:10.16355/j.cnki.issn1007-9432tyut.2017.01.004
CuZnAl 催化剂中 Cu含量对催化环己醇气相脱氢反应性能的影响
Effect of Cu Content on the Catalytic Properties of CuZnAl for Gas-Phase Dehydrogenation of Cyclohexanol
摘要
Abstract
A series of CuZnAl mixed oxides were obtained by calcination of CuZnAl hydrotalcite pre‐cursors ,which were prepared through constant pH coprecipitation method .The gas‐phase dehydrogena‐tion of cyclohexanol to cyclohexanone over CuZnAl catalysts was carried out in a continuous fixed bed re‐actor .Results show that catalyst with regular layer structure and high crystallinity was achieved in the range of n(Cu)∶ n(Zn)<2 .Catalyst with high specific surface area ,good Cu dispersion and suitable basic site amount and intensity was obtained after calcination of n(Cu)∶n(Zn)∶n(Al)=1.0∶1.0∶1.0 hydrotalcite precursor .The catalyst exposes Cu0/Cu+active site in an appropriate proportion after reduc‐tion ,and under reaction temperature of 250 ℃ ,the conversion of cyclohexanol is nearly 65.76% ,the selectivity of cyclohexanone is 99.48% .关键词
CuZnAl催化剂/环己醇/脱氢/环己酮Key words
CuZnAl catalyst/cyclohexanol/dehydrogenation/cyclohexanone分类
化学化工引用本文复制引用
蔺丹丹,宁艳春,吴旭,郭娟娟,安霞,谢鲜梅..CuZnAl 催化剂中 Cu含量对催化环己醇气相脱氢反应性能的影响[J].太原理工大学学报,2017,48(1):25-29,5.基金项目
国家自然科学基金资助项目含铜类水滑石及其衍生复合氧化物的制备过程研究（50872086）；山西省青年科技研究基金资助项目用于加氢脱氢一体化制备糠醇和环己酮双功能催化剂的制备及性能研究 （）
