《化工原理》创新实验教学设计--双极膜电渗析产酸产碱过程解析  

Chemical Engineering Experiment Design:Electrodialysis with Bipolar Membranes for Acid and Alkali Production

作　　者：王秋月 刘泽贤 Wang Qiuyue;Low Zexian(Nanjing Tech University,Nanjing 211816,China)

机构地区：[1]南京工业大学,江苏南京211816

出　　处：《广东化工》2024年第23期147-149,161,共4页Guangdong Chemical Industry

摘　　要：本文设计了一个搭建双极膜电渗析装置并分析其产酸产碱过程的化工原理教学实验。首先,将双极膜、阴离子交换膜和阳离子交换膜交替排列于具有相同有效面积的电极之间,搭建双极膜电渗析装置。其次,向电渗析装置中通入料液并利用蠕动泵循环,在电场作用下进行酸和碱的生产。最后,对所采集的数据进行分析,计算双极膜电渗析过程产酸产碱的能耗和电流效率。本实验中,搭建双极膜电渗析装置的部分可锻炼学生的动手能力,实验操作部分有助于学生熟悉实验仪器,数据分析部分可强化学生对电膜分离过程的理解。In this article,a chemical engineering experiment designed to explore the electrodialysis process with bipolar membranes(EDBM)for acid and alkali production has been presented.The experiment begins with the assembly of an integrated EDBM stack,featuring alternately arranged commercial bipolar membranes,anion exchange membranes,and cation exchange membranes positioned between electrodes.Feed solutions are then introduced into the electrodialysis device and circulated using peristaltic pumps.Under the influence of an electric field,sulfuric acid and lithium hydroxide are produced.Subsequently,the collected data are analyzed to calculate the energy consumption and current efficiency of the EDBM process for acid and alkali production.This experiment enhances students'practical skills through the assembly of the EDBM stack,while the data analysis component deepens their understanding of electro-driven membrane processes.

关 键 词：电渗析 双极膜 酸碱生产 能耗 电流效率 

分 类 号：TQ[化学工程]