萃取精馏法分离醋酸/水的工艺模拟  

Simulation of Extractive Distillation of Acetic Acid and 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：《天然气化工—C1化学与化工》2004年第1期37-39,共3页Natural Gas Chemical Industry

摘　　要：利用PRO/II软件,选择Hayden O Connell热力学模型,对萃取精馏法分离醋酸/水的工艺进行了模拟。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 results showed that extractive distillation was prior to conventional distillation in separation of acetic acid and water.

关 键 词：萃取精馏 醋酸/水 工艺模拟 PRO/Ⅱ 

分 类 号：TQ225[化学工程—有机化工]