| 醋酸-水体系复杂精馏过程模拟与优化 |
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| 引用本文： | 万辉,管国锋,柏正奉,叶国祥,姚虎卿. 醋酸-水体系复杂精馏过程模拟与优化[J]. 化学工程, 2004, 32(5): 5-9 |
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| 作者姓名： | 万辉 管国锋 柏正奉 叶国祥 姚虎卿 |
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| 作者单位： | 南京工业大学,化学化工学院,江苏,南京,210009;扬子石油化工股份有限公司化工厂,江苏,南京,210048 |
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| 摘 要： | 醋酸的缔合效应使得醋酸 水体系的非理想性非常严重,文中考虑汽相的二聚缔合,液相用NRTL方程修正其非理想性,计算出的常压下汽液平衡数据与文献值比较吻合,并把所推导的热力学模型用于多股进料精馏模拟计算,确定了精馏过程的最佳回流比以及精馏塔内温度、质量分数分布,并讨论进料温度、质量分数等因素变化对精馏过程的影响,获得了对醋酸 水体系精馏过程实际生产具有指导意义的优化操作参数。
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| 关 键 词： | 醋酸 汽液平衡 精馏 模拟与优化 |
| 文章编号： | 1005-9954(2004)05-0005-05 |
Simulation and optimization of acetic acid-water system complicated distillation process |
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| WAN Hui,GUAN Guo-feng,BAI Zheng-feng,YE Guo-xiang,YAO Hu-qing. Simulation and optimization of acetic acid-water system complicated distillation process[J]. Chemical Engineering, 2004, 32(5): 5-9 |
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| Authors: | WAN Hui GUAN Guo-feng BAI Zheng-feng YE Guo-xiang YAO Hu-qing |
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| Affiliation: | WAN Hui~1,GUAN Guo-feng~1,BAI Zheng-feng~2,YE Guo-xiang~1,YAO Hu-qing~1 |
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| Abstract: | Because of the association effect of the acetic acid, the non-ideal behavior of acetic acid-water system is very serious. The association of two acetic acid molecules in the vapor phase and NRTL equation in the liquid phase weve used to correct the non-ideal behavior. The vapor-liquid equilibrium data of calculation under 101.325 kPa were close to the data of document. Thermodynamics model of derivation was applied to the simulation and (calculation) of acetic acid-water system several-feeds distillation process, and the optimum reflux ratio of the (distillation) process and the distribution of temperature and mass fraction in the distillation tower were gained. The influence of changes of feeding temperature and mass fraction on the distillation process was discussed. |
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| Keywords: | acetic acid vapor-liquid equilibrium distillation simulation and optimization |
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