摘要
在固定床反应器中采用负载型骨架镍催化剂对甲基异丁基甲酮(MIBK)催化一步加氢制备甲基异丁基甲醇(MIBC)进行了研究,考察了反应温度、压力、氢酮体积比和液体空速等对加氢反应的影响。实验结果表明,在加氢反应过程中,当反应温度为170℃,反应压力为4 MPa,氢酮体积比为400,空速为0.8 h^(-1)时,甲基异丁基甲酮的转化率达到99.1%,选择性达到99.9%。同时,负载型骨架镍催化剂具有良好的稳定性,经过240 h后,催化剂的反应性能未发生明显变化。
The one step hydrogenation of methyl isobutyl ketone （MIBK） to prepare methyl isobutyl carbinol （MIBC） is studied with the supported skeletal nickel catalyst in fix-bed reactor.The influences of reaction temperature, pressure, molar ratio between hydrogen and MIBK, and liquid space velocity on the hydrogenation reaction are determined.The experimental results show that the supported skeletal nickel catalyst plays a good catalytic role in the hydrogenation process.The conversion of MIBK reaches 99.1% and the selectivity of MIBC is more than 99. 9% under the foliowing hydrogenation conditions ：4 MPa of reaction pressure, 170℃ of reaction temperature, 1 h^-1 of liquid space velocity and V（ H2 ） ：V（MIBK） = 400：1. In addition, the reaction performance of the catalyst has not changed obviously after 240 h, showing that the supported skeletal nickel catalyst has good stability.
出处
《现代化工》
CAS
CSCD
北大核心
2017年第6期75-78,80,共5页
Modern Chemical Industry
基金
国家自然科学基金项目(21073020)
北京市属高等学校高层次人才引进与培养计划项目(CIT&TCD20130325)
