水-二甲亚砜及醋酸-二甲亚砜体系等压汽液平衡数据测定

论文编号:HG108  论文字数:11268,页数:33

摘 要:汽液平衡数据是重要的化工基础数据，文中用改进的Rose釜测定101.33kPa水-二甲亚砜及醋酸-二甲亚砜体系的汽液平衡数据, 用气相色谱分析平衡组成，并进行了热力学一致性验证。
 另外，汽液平衡活度系数模型多为非线性模型，参数回归难度大。过去用Fortran、C、BASIC语言编写程序，但程序繁琐且易出错。近年，功能强大的MATLAB语言开始在工程计算中应用，MATLAB语言编程容易，代码短小高效，作者首次采用MATLAB语言编写Van Laar、Wilson 、NRTL和6次多项式的模型参数回归程序。其次，蚁群算法是一种新兴的智能算法，文中对该算法拟合活度系数模型参数，也做了一些摸索工作。
 结果表明，气相色谱分析准确,所得数据可为二甲亚砜回收提纯及醋酸萃取精馏工艺开发与设计提供依据；MATLAB程序简单可靠， 还能给出直观的拟合图。
关键词：醋酸；二甲亚砜；蚁群算法；MATLAB；汽液平衡

Isobaric Vapor-Liquid Equilibrium for System of Water+Dimethyl sulfoxide and Acetic acid+Dimethyl sulfoxide

Abstract: Vapor-Liquid Equilibrium（VLE）data is an important foundation for the chemical data, In article, the phase composition of isobaric VLE data for water + dimethyl sulfoxide and  acetic acid + dimethyl sulfoxide system was measured at 101.33kPa by using an improved Rose still, and the thermodynamic consistency of the experimental VLE data was satisfactory.
 Moreover, most of the activity coefficient model of VLE is the misalignment model, and the regression of parameter is very difficult. In the past, with Fortran, C and BASIC language programming, but the procedure is cumbersome and error-prone. Recent years, the powerful capabilities of MATLAB language started to apply in the calculation of engineering, MATLAB programming easy, also the code is short and highly effective. Author used the MATLAB language to compile the model parameter regression procedures of Van Laar, Wilson, NRTL and 6 polynomials for the first time. Secondly, the ant algorithm is a new and intelligent algorithm. In article, fitting parameters model of activity coefficient used by this algorithm, also done some exploration work.
 The results showed that the analysis of gas chromatography was more precise, the data could provide a basal data for the dimethyl sulfoxide’s purification, as well as for the design of the acetic acid’s extraction and rectification.  MATLAB program is simple and reliable, but also can produce the fitting chart directly.
 Key words: acetic acid；dimethyl sulfoxide（DMSO）；ant algorithm；MATLAB;
 VLE

目录
中文摘要．Ⅰ
英文摘要．Ⅱ
目录．Ⅲ
1.绪论．1
 1.1 二甲亚砜和醋酸的性质．1
 1.2 汽液平衡数据计算方法．1
 1.3 蚁群算法的原理．4
 1.4 本课题研究的目的及意义．5
2.实验部分．8
 2.1 实验试剂．8
 2.2 实验器材．8
 2.3 实验装置．9
 2.4 分析方法9
 2.5 校核体系9
 2.6 实验数据采集10
3.实验数据处理及讨论13
 3.1 二甲亚砜-水体系实验数据处理及讨论．13
 3.2 醋酸－二甲亚砜体系实验数据处理及讨论．15
 3.3 水-醋酸体系实验数据处理及讨论．16
4.程序编写17
 4.1 各方程参数回归程序．17
 4.2 蚁群算法程序21
5.总结与展望26
致谢．27
参考文献．28