高校化学工程学报2024，Vol.38Issue(4)：566-577,12.DOI:10.3969/j.issn.1003-9015.2024.04.005
Co-Ru/HAP的制备及其催化乙二醇氨化反应
Preparation of a Co-Ru/HAP catalyst and its catalytic performance for ethylene glycol amination
摘要
Abstract
A series of supported bimetallic catalysts were prepared by introducing different second metal components into Co/HAP to improve ethylenediamine selectivity in ethylene glycol amination.Co-Ru/HAP showed better catalytic performance and its preparation conditions were obtained as follows:pH=10,metal loading=9％,mass ratio of Co to Ru=10:1 and reduction temperature=500℃.The conversion of ethylene glycol was 30.2％under these conditions.Ethylenediamine selectivity and total ethylenediamine and ethanolamine selectivity were 35.4％and 58.0％,respectively.Combined with catalyst characterization and activity evaluation,the results show that Co mainly facilitates dehydrogenation and hydrogenation steps in ethylene glycol amination,while Ru mainly inhibits NH3 adsorption on the surface of Co,which can ensure more Co sites to activate ethylene glycol.The acid-base active sites of the catalyst have an obvious synergistic effect.A qualitative analysis of ethylene glycol amination was performed by gas chromatography-mass spectrometry analysis,and the reaction network of Co-Ru/HAP catalyzed ethylene glycol amination was established.关键词
乙二醇/乙二胺/催化氨化/协同作用/反应网络Key words
ethylene glycol/ethylenediamine/catalytic amination/synergistic effect/reaction network分类
化学化工引用本文复制引用
郭浩林,李健朋,赵新强,安华良,赵茜,王延吉..Co-Ru/HAP的制备及其催化乙二醇氨化反应[J].高校化学工程学报,2024,38(4):566-577,12.基金项目
国家自然科学基金(21978066,U21A20306). （21978066,U21A20306）
