| 间歇精馏分离乙醇-DEM体系的研究 |
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| 引用本文： | 林军,顾正桂,苏复,冯佳佳.间歇精馏分离乙醇-DEM体系的研究[J].计算机与应用化学,2008,25(8). |
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| 作者姓名： | 林军 顾正桂 苏复 冯佳佳 |
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| 作者单位： | 南京师范大学化学与环境科学学院,江苏,南京,210097 |
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| 基金项目： | 江苏省高校自然科学基金 |
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| 摘 要： | 为除去DEM粗产品中的少量乙醇,获得高纯度DEM产品,测定乙醇-DEM体系的汽液平衡数据,采用间歇精馏法将体系分离精制.确定了精馏工艺条件,考查了原料组成、填料高度等因素对分离的影响,采用理论板数n≥28的填料蒸馏塔,当原料中乙醇含量等于2%时,产品DEM纯度町高于99.6%,回收率超过88%.为以后的工业装置设计及工业化生产提供了充足的实验依据.
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| 关 键 词： | 间歇精馏 汽液平衡 |
Study on the separation of ethanol-DEM system by distillation |
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| Lin Jun,Gu Zhenggui,Su Fu,Feng Jiajia.Study on the separation of ethanol-DEM system by distillation[J].Computers and Applied Chemistry,2008,25(8). |
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| Authors: | Lin Jun Gu Zhenggui Su Fu Feng Jiajia |
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| Abstract: | Based on the determined vapor-liquid equilibrium of the ethanol-DEM system,the distillation process was adopted to sepa- rate ethanol from DEM.The experimental works was done to investigate the effects of the ratio of raw materials and height of packed tower,the one-way recovery rate of the final DEM product with the purity higher than 99.6% and recovery rate exceeded 88%,which provided more reliable experimental data for the design and operation of industrial equipments. |
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| Keywords: | DEM |
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