含氢混合气体的压缩因子

CIESC Journal

含氢混合气体的压缩因子

徐忠

西安交通大学动力系

出版日期:1981-09-25 发布日期:1981-09-25

Compressibility Factors of Gas Mixtures Containing Hydrogen

Xu Zhong Department of Power Engineering, Xian Jiaotong University

Online:1981-09-25 Published:1981-09-25

摘要/Abstract

摘要： 在高压低温下,含氢混合气体已极大地偏离理想气体,因而必须要求正确地确定这种混合气体的P-V-T关系。本文对混合气体假临界常数的Kay方法进行修正,用此计算对比参数,就可把LK方程延伸使用于含氢混合气体。文中分别用修正Kay方法和GCP方法所得的假临界常数和LK方程对H_2-CH_4-N_2、N_2-H_2、H_2-N_2-CO_2-CO-CH_4等系统的压缩因子进行了计算,并和文献中的实验值作了比较。结果表明,用本文修正Kay方法所得计算值与实验值有更好程度的吻合。

Abstract: The Lee-Kesler equation has been extended to gas mixtures containing hydrogen when the modified Kays rule proposed in this paper is used to determine pseudocritical constants of the mixtures. The modified Kays, rule is with A =1.15, where y find 6 are the shape factors. By using, the modified Kays rule, the Lee-Kesler equation is applied to calculate the compressibility factors of three systems, which are nitrogen-hydrogen, hydrogen-methane-nitrogen, hydrogen-nitrogen-carbon dioxide - carbon monoxide-methane, all containing hydrogen, over a wide range of pressure and temperature. Computation of the compressibility factors are carried out in the following procedure; 1. for hydrogen, 0o = 1.45, (t>o = 2. calculation of and (from equations 6 and 7 , 3 . Calculation of QT and

徐忠. 含氢混合气体的压缩因子 [J]. CIESC Journal.

Xu Zhong Department of Power Engineering, Xian Jiaotong University. Compressibility Factors of Gas Mixtures Containing Hydrogen[J]. .