基于甘油萃取剂的正丙醇-水萃取精馏工艺的模拟实验  

Design of an extractive distillation simulated process for dehydration of1-propanol by using glycerol as entrainer

作　　者：孙加伟[1] 许松林[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《现代化工》2014年第9期161-164,共4页Modern Chemical Industry

摘　　要：以Wilson方程为模型,应用ProⅡ软件对正丙醇脱水的萃取精馏工艺流程进行了模拟分析。重点对一些关键参数,如萃取剂进料比、理论塔板数、进料位置、萃取剂进料位置以及回流比等对精馏效果的影响进行了讨论分析。模拟结果表明,当萃取剂进料量为170 kmol/h,精馏塔的塔板数为58块板,进料位置为51块板,萃取剂进料位置为3块板,回流比为1.7时,产物正丙醇的质量分数为99.5%。The 1-propanol-water extractive distillation process is simulated by Pro Ⅱ software and Wilson model. The effect of some key parameters including molar ratio of solvent to feed, reflux ratio, theoretical stage number, feed stage and solvent feed stage is studied. The simulation results show that the purity of 1 -propanol can reach 99.5% under the following conditions ：170 kmol/h of entrainer,58 of number of theoretical plates, 1.7 of reflux ratio and feeding at 51 th plate.

关 键 词：正丙醇 甘油 萃取精馏 模拟 

分 类 号：TQ214[化学工程—有机化工]