化工学报2016，Vol.67Issue(7)：2685-2691,7.DOI:10.11949/j.issn.0438-1157.20151985
常压下甲醇-聚甲氧基二甲醚二元体系汽液平衡
Vapor-liquid equilibrium for methanol + polyoxymethylene dimethyl ethers binary system under normal atmospheric pressure
摘要
Abstract
At 101.3 kPa constant pressure, the VLE data of methanol-DMM3 (polyoxymethylene dimethyl ethers with degree of polymerization of n, i.e., DMMn) system were determined by using an improved Rose still. Thermodynamic consistency of the obtained vapor liquid equilibrium data were examined. The results were satisfied with Gibbs-Duhenm’s thermodynamic consistency. The VLE data were correlated by Wilson, NRTL and UNIQUAC activity coefficient model by Aspen Plus v7.1. The objective function was optimized by the maximum likelihood method and the corresponding model parameters were returned. Compared with the experimental results, the average absolute deviations for temperature and the composition in the vapor phase were less than 0.65 K and 0.0065, respectively. This work provides the important engineering data for an engineering design and further study in the multicomponent system containing methanol and DMM3.关键词
汽液平衡/甲醇/DMM3/热力学模型Key words
vapor-liquid equilibrium/methanol/DMM3/thermodynamic model分类
化学引用本文复制引用
王丰阳,梁欢欢,周彩荣..常压下甲醇-聚甲氧基二甲醚二元体系汽液平衡[J].化工学报,2016,67(7):2685-2691,7.基金项目
河南省教育厅重点科技攻关项目（13A530712）。@@@@supported by the Key Scientific Research Foundation of Zhengzhou Education Bureau, Henan Province (13A530712) （13A530712）
