高校化学工程学报2017，Vol.31Issue(6)：1333-1339,7.DOI:10.3969/j.issn.1003-9015.2017.06.011
酸碱性对负载型Ni基催化剂催化辛烯醛液相加氢反应性能的影响
Effects of Acid-Base Properties on Catalytic Performance of Supported Nickel-Based Catalysts for 2-Ethyl-2-Hexenal Hydrogenation
摘要
Abstract
α-Al2O3 prepared by a sucrose-assisted method was used as the support of metal catalysts, and their catalytic performance in liquid-phase hydrogenation of 2-ethyl-2-hexenal was evaluated. The results show that Ni/α-Al2O3 has excellent catalytic performance with 2-ethyl-2-hexenal conversion of 100% and 2-ethylhexanol yield of 92.8%. Moreover, effects of acid-base properties on 2-ethyl-2-hexenal hydrogenation was investigated by adding basic substances (LiOH, NaOH and KOH), acidic substances (acetic acid, boronic acid, zinc acetate and zinc stearate) and amphiprotic substance (γ-Al2O3), respectively. The results show that basic substances are beneficial for C=C bond hydrogenation and improve its hydrogenation rate. Meanwhile, acidic substances facilitate C=O bond hydrogenation and enhance its hydrogenation rate. Furthermore, γ-Al2O3 with weak acid and weak base sites contributes to both C=C and C=O hydrogenation, which improves the hydrogenation rates of both C=C and C=O bonds.关键词
酸碱性/Ni/α-Al2O3/辛烯醛/辛醇/加氢Key words
acid-base property/Ni/α-Al2O3/2-ethyl-2-hexenal/2-ethylhexanol/hydrogenation分类
化学化工引用本文复制引用
赵丽丽,王毅,安华良,赵新强,王延吉..酸碱性对负载型Ni基催化剂催化辛烯醛液相加氢反应性能的影响[J].高校化学工程学报,2017,31(6):1333-1339,7.基金项目
国家自然科学基金(21476058 （）
21506046) （）
天津市自然科学基金青年项目(16JCQNJC06100). （16JCQNJC06100）
