醋酸/水萃取精馏的模拟(英文)  

Simulation of extractive distillation of acetic acid-water

作　　者：胡兴兰[1] 苗文俊[1] 周荣琪[2] 

机构地区：[1]承德石油高等专科学校化工系,河北承德067000 [2]清华大学化工系,北京100084

出　　处：《计算机与应用化学》2004年第6期828-830,共3页Computers and Applied Chemistry

摘　　要：利用PRO/II软件对醋酸/水的萃取精馏进行了模拟。采用Hayden-O′Connell 方程计算逸度系数,NRTL 方程计算活度系数。模拟结果显示,与普通精馏相比,萃取精馏工艺的再沸器热负荷降低了51.8%,生产每吨醋酸耗费蒸汽量由8.9t 降至4.6t,说明在同样的分离指标下,萃取精馏法分离醋酸/水要优于普通精馏法。Extractive distillation of acetic acid and water was simulated with the software PRO/Ⅱ.To provide data for the simulation,the fugacity coefficients were calculated by Hayden-O'Connell equation,and the activity coefficients by NRTL equation.Simulation re-sults showed that extractive distillation was superior to conventional distillation in separation of acetic acid and water,which heat dutiesof the reboilers was reduced by 51.8%,and the corresponding heating steam was reduced from 8.9 tons to 4.6 tons per ton acetic acidproduced.

关 键 词：模拟 萃取精馏 醋酸/水 PRO/Ⅱ 

分 类 号：TQ028.13[化学工程]