| 内部热耦合精馏塔基于非理想物系的最优评价 |
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| 引用本文： | 刘兴高,徐用懋,钱积新.内部热耦合精馏塔基于非理想物系的最优评价[J].中国化学工程学报,2001,9(4):388-394. |
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| 作者姓名： | 刘兴高 徐用懋 钱积新 |
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| 作者单位： | [1]InstituteofProcessControlEngineering,AutomationDepartment,TsinghuaUniversity,Beijing100084,China [2]InstituteofIndustrialProcessControl,ZhejiangUniversity,Hangzhou31002？,China |
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| 基金项目： | Supported by National Natural Science Foundation of China (No. 20106008), China Postdoctoral Science Foundation, Tsinghua University-Zhongda Group Postdoctoral Science Foundation, and the National Environmental Protect Bureau of China (Huan-Ke-Ke, 1997, |
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| 摘 要： | Internal thermally coupled distillation column(ITCDIC) is a frontier in energy saving distillation research. In this paper, the optimal assessment on the energy saving and the operating cost for ITCDIC of nonideal mixture is explored. An evaluating method is proposed, and the pertinent optimization model is then derived. The ethanol-water system is studied as an illustrative example. The optimization results show that the maximum energy saving in ITCDIC process is about 35% and the maximum operating cost saving in ITCDIC process is about 30%,as compared with a conventional distillation column(CDIC) under the minimum reflux ratio operating; the optimal operating pressure of the rectifying section is found to be around 0.25 MPa; the effects of the feed composition,operating pressure and the heat transfer rate on operation are also found and analyzed. It is revealed that ITCDIC process possesses high energy saving potential and promising economical prospect.
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| 关 键 词： | 内部热耦合精馏塔 非理想物系 最优评价 ITCDIC 节能 传热 回流比 |
| 修稿时间： | |
Optimization of Internal Thermally Coupled Distillation Columns of Nonideal Mixture |
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| LIU Xinggao,XU Yongmao,QIAN Jixin.Optimization of Internal Thermally Coupled Distillation Columns of Nonideal Mixture[J].Chinese Journal of Chemical Engineering,2001,9(4):388-394. |
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| Authors: | LIU Xinggao XU Yongmao QIAN Jixin |
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| Affiliation: | Institute of Process Control Engineering, Automation Department, Tsinghua University, Beijing 100084, China Institute of Industrial ProcessControl, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Internal thermally coupled distillation column(ITCDIC) is a frontier in energy saving distillation research. In this paper, the optimal assessment on the energy saving and the operating cost for ITCDIC of nonideal mixture is explored. An evaluating method is proposed, and the pertinent optimization model is then derived. The ethanol-water system is studied as an illustrative example. The optimization results show that the maximum energy saving in ITCDIC process is about 35% and the maximum operating cost saving in ITCDIC process is about 30%, as compared with a conventional distillation column(CDIC) under the minimum reflux ratio operating; the optimal operating pressure of the rectifying section is found to be around 0.25 MPa; the effects of the feed composition, operating pressure and the heat transfer rate on operation are also found and analyzed. It is revealed that ITCDIC process possesses high energy saving potential and promising economical prospect. |
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| Keywords: | ITCDIC optimal assessment energy saving operating cost saving |
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