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实际流体的微扰理论状态方程研究
Study on Perturbation Theory Based Equation of State for Real Fluids
【摘要】 在微扰理论和硬球链状态方程基础上,对链状分子间中的氢键作用采用了一种新的处理方法,提出一个新的三参数的实际流体状态方程。将此方程用于关联33个纯液体的饱和蒸汽压和液体密度,并由所得到的参数预测了汽相的密度。此状态方程比APACT和SAFT状态方程简单,而计算的精确度则相当
【Abstract】 A new 3parameter equation of state (EOS) for real fluids is developed based on perturbation theory,hardsphere chain EOS and a new treatment of interactions of hydrogen bonding for chainlike molecules.This EOS has been used to correlate the saturated vapor pressure and liquid density for 33 pure liquids over a wide range of temperature ,and the model parameters thus obtained have been used to predict the density for vapor phase.This new EOS is much simpler than APACT and SAFTEOS, while the calculation accuracy is comparable with these two EOS.
【基金】 国家自然科学基金
- 【文献出处】 化学工程 ,CHEMICAL ENGINEERING(CHINA) , 编辑部邮箱 ,1998年02期
- 【分类号】TQ013.1
- 【被引频次】1
- 【下载频次】188