连续精馏过程动态累积操作方式的研究

摘要

针对含低浓度杂质物系的分离进行了连续精馏动态累积操作(DACD)的研究,提出了DACD的操作方案.建立了数学模型,通过MATLAB编程对过程进行了模拟求解,研究了不同操作参数对操作影响,并用乙醇-正丙醇物系进行了实验验证.模拟和实验结果表明,DACD能够解决连续精馏处理含低浓度杂质溶液时塔顶或塔底产品流量太小控制不方便的问题,也降低了间歇精馏对塔釜大小的要求.

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	李帅荣
	白鹏

关键词：动态累积；连续精馏； MATLAB；模拟；操作方式

Abstract：

For the separation of solution with low concentration of impurities, a study on dynamic accumulation operation mode of continuous distillation (DACD) was composed, the operation scheme and the mathematical model was put forward and established. The process was simulated by MATLAB, the influence of different parameters on the operation was discussed. And an experimental verification using mixture of ethanol and 1-propanol was conducted. The results of simulation and experiment indicated that DACD could solve the shortage of flowrate control difficulty in continuous distillation, and the demand of still size could be also reduced than that in batch distillation.

Keywords： dynamic accumulation； continuous distillation； MATLAB； simulation； operation policy

Received 2013-05-15;

Corresponding Authors: 白鹏,E-mail: bp2008@eyou.com. Email: bp2008@eyou.com

About author: 李帅荣(1987-),男,硕士研究生,现从事化工分离方向的研究.

引用本文:

李帅荣, 白鹏.连续精馏过程动态累积操作方式的研究[J]. 化学工业与工程, 2015,32(6): 64-68

Li Shuairong, Bai Peng.Dynamic Accumulation Operation Mode of Continuous Distillation[J]. Chemcial Industry and Engineering, 2015,32(6): 64-68

[1] Ashraf-Khorassani M, Taylor L T, Waterman K C, et al. Purification of pharmaceutical excipients with supercritical fluid extraction[J]. Pharmaceutical Development Technology, 2005, 10(4): 507-516
[2] Bettini P R. Are pharmaceutics really going supercritical? [J]. International Journal of Pharmaceutics, 2008, 364(2): 176-187
[3] 沈妮. 离子交换树脂脱除高浓度磷酸钠溶液中钒(V)铬(VI)的研究[D]. 北京: 北京化工大学, 2009
[4] 黄良才,李春海,文百开. 一种回收处理APT结晶母液等含钨稀溶液的离子交换工艺[J]. 中国钼业,2005, 29(6): 22-24 Huang Liangcai, Li Chunhai, Wen Baikai. Novel ion exchange process for recovery-treating weak tungsten solution such as APT crystalline mother liquor[J]. China Molybdenum Industry, 2005, 29(6): 22-24(in Chinese)
[5] 靳海波, 徐新. 化工分离过程[M]. 北京: 中国石化出版社, 2008
[6] 齐荣, 余兆祥, 李佟茗. 泡沫分离技术及其发展现状[J]. 化工文摘, 2004, 5: 46-49 Qi Rong, Yu Zhaoxiang, Li Tongming. Foam separation technology and its development[J]. China Chemicals, 2004, 5: 46-49(in Chinese)
[7] Luo Y, Yuan X, Yang Z, et al. A novel operation policy for dilute component separation-quasi-batch distillation[J]. Chinese J Chem Eng, 2005, 13(3): 338-342
[8] Block B. Control of batch distillatio[J]. Chem Eng, 1967, (1): 147-150
[9] Treybal R E. A simple method for batch distillation[J]. Chemical Engineering, 1970, 77: 95-101
[10] 白鹏, 张卫江, 余国琮. 动态累积分批精馏过程研究(I):操作方法及实验[J]. 化学工程, 1994, 22(6): 15-18 Bai Peng, Zhang Weijiang, Yu Guocong. Study on dynamic accumulative batch distillation(I)—Operation and experiment[J]. Chemical Engineering(China), 1994, 22(6): 15-18(in Chinese)
[11] 张卫江, 白鹏, 余国琮. 动态累积分批精馏过程研究(II): 过程模拟计算[J]. 化学工程, 1994, 22(6): 19-23 Zhang Weijiang, Bai Peng, Yu Guocong. Study on dynamic accumulative batch distillation(II): Process simulation[J]. Chemical Engineering(China), 1994, 22(6): 19-23(in Chinese)
[12] Bai P, Hua C, Li X, et al. Cyclic total reflux batch distillation with two reflux drums[J]. Chemical Engineering Science, 2005, 60(21): 5 845-5 851