摘要
在温度为503K～573K、压力为0.1MPa～2.0MPa条件下采用Larsen和Fredenslund两种基团贡献法计算了二甲醚在角鲨烷中的溶解度。采用基团贡献法计算结果优化正规溶解度理论的二元交互作用参数为-0.1438,比较了基团贡献法和正规溶解度理论在预测温度和压力对溶解度的影响时的差别,并指出在溶解度计算过程中二者各自的适用范围。
The solubility of dimethyl ether in squalane is calculated by two group-contribution models proposed respectively by Larsen and Fredenslund under the conditions of T = 503 K-573 K, P = 0.1 MPa-2.0 MPa. Based on the calculated results of group-contribution models, the binary parameter for regular solubility theory is obtained from the optimization of the summation of residuals between the group contributions and regular solubility theory. In addition,the difference among them and their adaption ranges are pointed out in course of the investigation of the influences of temperature and pressure on the dimethyl ether solubility.
出处
《化学工业与工程》
CAS
2005年第5期399-404,共6页
Chemical Industry and Engineering
基金
国家高技术研究与发展计划(863计划)资助项目(2002AA529070)
关键词
二甲醚
角鲨烷
基团贡献法
正规溶解度理论
亨利系数
溶解度
dimethyl ether
squalane
group contribution
regular solubility theory
Henry coefficient
solubility
