| 醋酸-对二甲苯-水体系共沸精馏的模拟分析 |
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| 引用本文： | 周永兵,刘建新,陈韶辉. 醋酸-对二甲苯-水体系共沸精馏的模拟分析[J]. 现代化工, 2011, 31(8): 83-85,87 |
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| 作者姓名： | 周永兵 刘建新 陈韶辉 |
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| 作者单位： | 中国石化扬子石油化工有限公司研究院,江苏南京,210048 |
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| 摘 要： | 采用Aspen Plus11.1化工流程模拟软件,对扬子石油化工有限公司化工厂精对苯二甲酸(PTA)装置的溶剂脱水塔生产过程进行了模拟计算,采用NRTL-HOC热力学计算模型,并进行热力学参数修正,通过调整塔板数、热负荷、进料位置、操作压力、对二甲苯(PX)采出位置等操作参数,得出各塔的最佳工艺条件。在最佳工艺条件下,分析了此分离过程的能耗问题。模拟结果表明,溶剂脱水塔分离得到的醋酸、水、PX均能达到产品质量要求,工艺流程合理、可靠。
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| 关 键 词： | Aspen Plus11.1 精对苯二甲酸 共沸精馏 模拟优化 |
Simulation analysis on azeotropic distillation of acetic acid-p-xylene-water system |
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| ZHOU Yong-bing,LIU Jian-xin,CHEN Shao-hui. Simulation analysis on azeotropic distillation of acetic acid-p-xylene-water system[J]. Modern Chemical Industry, 2011, 31(8): 83-85,87 |
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| Authors: | ZHOU Yong-bing LIU Jian-xin CHEN Shao-hui |
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| Affiliation: | ZHOU Yong-bing,LIU Jian-xin,CHEN Shao-hui(Institute of SINOPEC Yangzi Petrochemical Company Ltd.,Nanjing 210048,China) |
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| Abstract: | The design and optimization are carried out for the separation process of solvent dehydration column in PTA plant by the chemical simulation software of Aspen 11.1 model.Non-random two liquids hayden-O'connell(NRTL-HOC) thermodynamic calculation model is used and some what thermodynamics parameters are modified.However,theoretical plate number,heat duty,feed location,operation pressure and discharging plate of p-xylene are adjusted in order to obtain optimal results for azeotropic distillation.Under the opt... |
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| Keywords: | ASPEN 11.1 purified terephthalic acid azeotropic distillation simulation optimization |
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