天然气化工2017，Vol.42Issue(5)：27-33,7.
预热液体石蜡对CuZnAl催化剂合成低碳醇的影响
Effect of preheating liquid paraffin on synthesis of higher alcohols by CuZnAl Catalyst
摘要
Abstract
The CuZnAl catalyst prepared by complete liquid-phase method was heat-treated under different temperature with paraffin which was pretreated in advance as heat-treatment and reaction medium. All catalysts were characterized by XRD, H2-TPR NH3-TPD, N2 adsorption and XPS. The results showed that the pretreatment of liquid paraffin could increase the grain size of Cu and pore size of the catalyst, change the existing form of Cu+, improve the Cu/Zn ratio on the surface, and make the catalyst have suitable weak acid content, which result in promoting the formation of C2+OH. Under the premise of pretreated liquid paraffin, the catalysts heat-treated under 250℃ and 280℃ had a higher selectivity of C2+OH with the C2+OH/ROH carbon atom ratios of reaching 14.75%and 14.12%, respectively, and the stability was still well behaved at 120h.关键词
完全液相法/CuZnAl催化剂/预热液体石蜡/热处理温度/低碳醇合成Key words
complete liquid-phase method/CuZnAl catalyst/pretreated liquid paraffin/heat treatment temperature/higher alcohols synthesis分类
化学化工引用本文复制引用
董伟兵,郝树宏,高志华..预热液体石蜡对CuZnAl催化剂合成低碳醇的影响[J].天然气化工,2017,42(5):27-33,7.基金项目
国家自然科学基金(201336006)和山西省自然科学基金(201601D011021) （201336006）
