| 进料组成对双效精馏节能效果的影响 |
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| 引用本文： | 张鹏,高维平,王琨,栾国颜,陈丽.进料组成对双效精馏节能效果的影响[J].化学工程,2006,34(11):68-70. |
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| 作者姓名： | 张鹏 高维平 王琨 栾国颜 陈丽 |
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| 作者单位： | 吉林化工学院化学工程系,吉林,吉林,132022;吉林化工学院制药与应用化学系,吉林,吉林,132022 |
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| 基金项目： | 吉林省重大科技攻关项目(20040313) |
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| 摘 要： | 以乙醇-水为物系,通过模拟计算,研究了进料组成对平流双效精馏、顺流双效精馏和逆流双效精馏节能效果的影响。结果表明,平流双效精馏和逆流双效精馏的节能率随进料中易挥发组分质量分数的增加而增大,节能率均在40%以上。而顺流双效HGL精馏节能率随进料中易挥发组分质量分数的增加而略有降低,节能率近50%。因此,当进料中轻、重组分质量分数差不多,或轻组分质量分数较多时,选用平流双效精馏和逆流双效精馏节能效果较好,当进料中重组分质量分数较多时,顺流双效精馏节能效果较好。
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| 关 键 词： | 双效精馏 模拟 组成 |
| 文章编号： | 1005-9954（2006）11-0068-03 |
Effect of feed composition on energy-saving of two-effect distillation |
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| ZHANG Peng,GAO Wei-ping,WANG Kun,LUAN Guo-yan,CHEN Li.Effect of feed composition on energy-saving of two-effect distillation[J].Chemical Engineering,2006,34(11):68-70. |
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| Authors: | ZHANG Peng GAO Wei-ping WANG Kun LUAN Guo-yan CHEN Li |
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| Affiliation: | 1. Department of Chemical Engineering; 2. Department of Pharmaceutical and Applied Chemistry, Jilin Institute of Chemical Technology, Jilin 132022, Jilin Province, China |
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| Abstract: | In ethanol-water system the effect of the feed composition on the energy-saving of two-effect distillations was researched by process simulation.The dual-feed flow,forward-feed flow and back-feed flow were mainly(discussed.) The results show that the energy-saving efficiency increases for dual-feed flow and back-feed flow,and lightly decreases for forward-feed flow with the increase of light components in feed;the value of the energy-saving efficiency is all of above 40% for dual-feed flow and back-feed flow,and is nearly 50% for forward-feed flow.Thus,if the feed contains nearly the equal mole fraction of light and heavy components or contains more light(components,) the dual-feed flow and back-feed flow can save more energy and if the feed contains much more heavy components,forward-feed flow is recommended. |
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| Keywords: | two-effect distillation simulation composition |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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