Phase Equilibria Properties and Correlation of Fluid Mixtures

流体混合物的相平衡性质和相关性

• 批准号: 8408540
• 负责人: Kenneth Hall
• 金额: $ 12.57万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1984
• 资助国家: 美国
• 起止时间: 1984-12-01 至 1987-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8408540&HistoricalAwards=false
• 关键词: Phase; Equilibria; Properties; Correlation; Fluid

In this project, various apparatus are developed to make fast, state-of-the-art phase equilibrium measurements of CO2 + N2 and CO2 + C2 H6 systems. The goal is to collect thermodynamic data at a rate of one datum for every 30 minutes. Apparatus under development are: fast Burnett, hybrid Burnett-Isochoric, and direct weighing pycnometer. Pressure measurements range from 0-2,000 BAR with precision of 10-3%; temperatures range from 100-500 degrees K with precisions of 2x10-3 degrees K; densities are at the 3x10-2% level. Mixtures are constructed gravimetrically to point 0.001 mole fractions. The correlation development revolves around an equation of state which separates attractive and repulsive terms. Proper application of temperature dependence in the repulsive term provides significant advantages over perturbed hard body expressions.

在这个项目中，开发了各种设备来快速， CO2 + N2和CO2 +的最新相平衡测量 C2 H6系统。 目标是以 每30分钟一个数据。 正在开发的仪器有：快速 Burnett、混合Burnett-Isochoric和直接称重比重瓶。 压力测量范围为0- 2，000 BAR，精度为10-3%; 温度范围为100-500 K，精度为2x 10 -3 K度;密度为3x 10 -2%水平。 混合物 通过重量分析构建至点0.001摩尔分数。 的 相关性的发展围绕着一个状态方程， 区分吸引力和排斥力。 正确应用 排斥项中的温度依赖性提供了显著的 比扰动刚体表达式更好。