本文提供了一种二元均相共沸混合物的预测方法.本方法通过UNIFAC基团贡献方法获得WS混合规则所需的二元相互作用系数,然后通过PR状态方程进行相平衡计算以求得平衡压力,再用牛顿迭代法求得使压力对浓度的一阶导数为零的根,从而获得共沸组分,并判断共沸混合物的类型.实例计算显示,预测结果与实验数据具有良好的一致性.
参考文献
| [1] | Aslam N;Sunol AK .Computing all the azeotropes in refrigerant mixtures through equations of state[J].Fluid Phase Equilibria,2004(1):97-109. |
| [2] | Sergey Artemenko;Victor Mazur .Azeotropy in the natural and synthetic refrigerant mixtures[J].International Journal of Refrigeration,2007(5):831-839. |
| [3] | Dong, XQ;Gong, MQ;Zhang, Y;Wu, JF .Prediction of homogeneous azeotropes by Wilson equation for binary HFCs and HCs refrigerant mixtures[J].Fluid Phase Equilibria,2008(1/2):6-11. |
| [4] | 董学强,公茂琼,张宇,吴剑峰.二元HFCs和HCs均相共沸物的预测方法研究[J].工程热物理学报,2009(04):562-564. |
| [5] | Xueqiang Dong;Maoqiong Gong;Yu Zhang .Prediction of Homogeneous Azeotropes by the UNIFAC Method for Binary Refrigerant Mixtures[J].Journal of Chemical and Engineering Data: the ACS Journal for Data,2010(1):52-57. |
| [6] | Coutsikos P.;Tassios DP.;Kalospiros NS. .CAPABILITIES AND LIMITATIONS OF THE WONG-SANDLER MIXING RULES[J].Fluid Phase Equilibria,1995(1/2):59-78. |
| [7] | Fedele L;Bobbo S;Camporese R;Scattolini M .Isothermal vapour plus liquid equilibrium measurements and correlation for the pentafluoroethane plus cyclopropane and the cyclopropane plus 1,1,1,2-tetrafluoroethane binary systems[J].Fluid Phase Equilibria,2007(1):41-46. |
| [8] | Park YM.;Jung MY. .Vapor-liquid equilibria for the pentafluoroethane (HFC-125) plus propane (R-290) system[J].Journal of Chemical and Engineering Data: the ACS Journal for Data,2002(4):818-822. |
| [9] | Bobbo S;Fedele L;Scattolini M;Camporese R;Stryjek R .Isothermal vapour plus liquid equilibrium measurements and correlation for the dimethyl ether+1,1,1,2,3,3,3-heptafluoropropane and the propane+1,1,1,2,3,3,3-heptafluoropropane systems[J].Fluid Phase Equilibria,2004(1):119-123. |
| [10] | Im J;Lee G;Lee YJ;Kim H .Vapor-liquid equilibria of the 1,1,1-trifluoroethane plus n-butane system[J].Journal of Chemical and Engineering Data: the ACS Journal for Data,2007(2):391-394. |
| [11] | Jian-Xin Chen;Ze-Shao Chen;Peng Hu .Vapor-Liquid Equilibria for the Binary System Pentafluoroethane(HFC-125)+Isobutane(HC-600a)at Temperatures from(243.15 to 333.15)K[J].Journal of Chemical and Engineering Data: the ACS Journal for Data,2007(6):2159-2162. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%