以α-甲基苯乙烯、氢气为原料在滴流床反应器中催化加氢合成异丙苯。本文主要考察反应温度、压力、循环量及进料α-MS的浓度、氢油比、催化剂、床层设计等因素对加氢反应的影响。结果表明,反应温度提高只在60～120℃范围内能够加快反应速率;压力在0.7～0.8 MPa时加氢反应速率最快,处理能力最大;氢油比的提高在保证原料与催化剂接触时间的前提下对反应有利;循环量及进料α-MS的浓度可以改变反应速率但是不能改变实际处理能力;催化剂的活性稳定是保证加氢效果的前提;床层设计的处理能力限制是造成目前加氢效果下降生产能力受限的主要原因。%With α-MS, hydrogen as raw material, cumene was synthesized by catalytic hydrogenation in a trickle-bed. The work mainly investigated the influence of reaction temperature, pressure, circulation, feeding a-MS concentration, hydrogen oil ratio on hydrogenation reaction. The results showed that the reaction temperature can accelerate the reaction rate within the range of 60-- 120 ℃ ; hydrogenation reaction rate is the fastest with the pressure from 0.7 to 0.8MPa, processing capability is the largest; the improvement on hydrogen to oil ratio ensure raw materials and catalyst contact time under the premise of the reaction; the circulation rate and the concentration of the feed a-MS reaction rate can be changed but the actual processing capacity cannot be changed; the stability of catalytic activity is the premise of the hydrogenation. The constrains for bed design processing capacity is the key for the reduction of current hydrogenation effect and the limitation of production capacity.
展开▼
