强酸性大孔树脂催化过氧化氢异丙苯(CHP)分解反应制苯酚是一个快速反应,需要用丙酮对进料CHP进行稀释,且反应过程要注意及时移出热量。依据该反应特点,设计催化精馏分解CHP制苯酚,应用Aspen Plus过程模拟软件进行了模拟计算。操作压力增大转化率下降而热负荷增大;回流比增大转化率开始增大,但一定程度后处于恒定;CHP进料位置越低转化率越低;而丙酮进料位置对转化率影响很小;停留时间增加,转化率开始增加而后维持一恒定值,但再沸器热负荷降低。计算结果对催化精馏分解CHP制苯酚工艺设计具有参考价值。The synthesis of phenol by the decomposition of cumene hydroperoxide(CHP) over a solid acid catalyst was studied.The rate of the reaction is very fast,so the CHP feed must be diluted with acetone to retard the reaction.A decomposition process of CHP by catalytic distillation was proposed based on the characteristics of the reaction,and Aspen Plus was used to simulate the process.It shows that phenol yield decreases and heat duty increases with the increase of operating pressure.The yield increases and reaches a constant value with the increase of reflux ratio.The lower the CHP feed stage is,the lower the yield will be;however,the acetone feed location plays a slight effect on the yield.The yield increases and then keeps constant with the increase of the resident time.The simulation results can be used as practical guidelines.厦门市科技计划资助项目(3502Z20055012
