| 立方扰动硬链状态方程GE混合规则及其应用 |
| |
| 引用本文： | 孙长宇,王利生. 立方扰动硬链状态方程GE混合规则及其应用[J]. 高校化学工程学报, 2001, 15(5) |
| |
| 作者姓名： | 孙长宇 王利生 |
| |
| 作者单位： | 1. 石油大学,
2. 北京理工大学, |
| |
| 摘 要： | 扩展了立方扰动硬链(CSPHC)状态方程在天然气工业中通常遇到物质的纯组分参数, 并建立了纯组分参数的普遍化关联式; 将过量Gibbs自由能混合规则引入CSPHC状态方程, 以应用于高度非对称体系与极性体系相平衡性质计算。结合MPHC活度系数模型及Wilson 活度系数模型, 对13组二元体系的汽液平衡性质获得较满意的结果。
|
| 关 键 词： | 状态方程 混合规则 活度系数 汽液平衡 普遍化 |
The Development and Application of GE Mixing Rule for CSPHC Equation of State |
| |
| SUN Chang-yu,WANG Li-sheng. The Development and Application of GE Mixing Rule for CSPHC Equation of State[J]. Journal of Chemical Engineering of Chinese Universities, 2001, 15(5) |
| |
| Authors: | SUN Chang-yu WANG Li-sheng |
| |
| Affiliation: | SUN Chang-yu1,WANG Li-sheng2 |
| |
| Abstract: | The three pure substance parameters of oil and gas compounds used in the Cubic Simplified Perturbed Hard-Chain (CSPHC) equation of state were generalized. Using this developed CSPHC equation, the absolute average deviations of the calculated vapor pressure and saturated liquid density of 36 pure substances were 1.47% and 3.13%, respectively. The excess Gibbs free energy mixing rule was introduced to CSPHC equation of state to describe the vapor-liquid equilibria at high temperature and pressure including supercritical condition. Good results were obtained for high non-symmetrical mixtures when combined with either MPHC activity coefficient model or Wilson activity coefficient model. The comparison of the results indicated that the new mixing rule was superior over the original CSPHC and SRK equations of state. |
| |
| Keywords: | equation of state mixing rule activity coefficient vapor-liquid equilibria generalized correlation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
