溶媒废酸水的精馏工艺改造及应用  

Retrofit and implementation of distillation process for recycling solvent of acid wastewater

作　　者：张小双 李肇宇 李春利[2] 

机构地区：[1]华北制药集团石家庄总厂,河北石家庄050015 [2]河北工业大学化工学院,天津300130

出　　处：《现代化工》2015年第11期152-155,共4页Modern Chemical Industry

基　　金：国家自然科学基金项目(21306036)

摘　　要：经过对溶媒回收工艺模拟分析,发现实际生产中存在回收能耗高等问题。针对溶媒废酸水回收工艺进行改造,提出减压工艺方案。通过降低回收塔的操作压力,增强换热等于手段现实能量回收。改造后,保证工艺中乙酸丁酯充分回收,废酸水回收工艺蒸汽用量由改造前3 000 kg/h降至1 800 kg/h,节约低压蒸汽40%。Through the simulations and analysis on the solvent recovery of penicillin, the vast amounts of energy consumption in recovery process is revealed. In this study, a decompression process is put forward to improve the solvent recovery process. It involves in reducing operation pressure and enhancing the heat recovery in the scheme. The modification maintains the extraction of butyl acetate and brought in an obvious energy-saving effect. The consumption of steam falls from 3 000 kg/h to 1 800 kg/h,saving low pressure steam by 40%.

关 键 词：溶媒回收 醋酸丁酯 减压蒸馏 Aspen模拟 

分 类 号：TQ028.4[化学工程]