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化学学报
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化学学报 ›› 2004, Vol. 62 ›› Issue (11): 1034-1040. 上一篇    下一篇

研究论文

用Yukawa状态方程和重整化群理论计算链状流体的汽液相平衡

付东1, 李以圭2, 陆九芳2   

  1. 1. 华北电力大学环境工程系, 保定, 071003;
    2. 清华大学化学工程系, 北京, 100084
  • 投稿日期:2003-10-09 修回日期:2004-02-10 发布日期:2014-02-17
  • 通讯作者: 付东,E-mail:fudong@tsinghua,org.cn E-mail:fudong@tsinghua,org.cn
  • 基金资助:
    华北电力大学人才引进基金(No.93505009)资助项目.

Investigation of the Phase Equilibria for Chain Like Fluids by Yukawa EOS and Renormalization-Group Theory

FU Dong1, LI Yi-Gui2, LU Jiu-Fang2   

  1. 1. Department of Environment Engineering, North China Electric Power University, Baoding 071003;
    2. Department of Chemical Engineering, Tsinghua University, Beijing 100084
  • Received:2003-10-09 Revised:2004-02-10 Published:2014-02-17

PDF

302

被引次数

7

结合重整化群(Renormalization Group,RG)理论和适用于链状流体的Yukawa状态方程,研究了10个非极性链状流体和6个缔合流体的汽液相平衡和临界性质.16个体系的临界温度Tc,临界压力Pc和临界密度ρc.的计算值和实验值之间的平均相对偏差(ARD%)分别为0.44%,1.31%和1.01%.所得结果与实验数据基本吻合.

关键词: Yukawa状态方程, 链状流体, 相平衡, 重整化群理论

The vapor-liquid equilibria and critical properties for 10 non-polar chain like fluids and 6 associating fluids are investigated by combining the renormalization group (RG) theory and the Yukawa EOS extended for chain like fluids. The average relative deviations (ARD%) of critical temperature Tcc, critical pressure p c and critical density ρc between the calculated results and the experimental data for 16 systems are 0.44%, 1.31% and 1.01%, respectively. The obtained results agree well with the experimental data.

Key words: Yukawa EOS, chain like fluid, phase equilibrium, RG theory