低温低压下多孔物质吸附性能的理论预测  

THE THEORETICAL PREDICTION OF ADSORPTION CHARACTERISTICS OF POROUS MATERIAL AT LOW TEMPERATURE AND LOW PRESSURE

作　　者：杨挺[1] 高香院[2] 李中胜[3] 

机构地区：[1]中国运载火箭技术研究院15所,北京100076 [2]西安交通大学 [3]西安电炉研究所

出　　处：《低温工程》1999年第1期44-49,共6页Cryogenics

摘　　要：根据ＰＯＬＡＮＹＩ位势理论，对运用某温度下的实验吸附等温线数据来推算其它温度下的吸附等温线的算法进行了探讨。分别利用ＰＲ，ＣＣＯＲ，ＭＣＳＰＴ等方程根据７８．８Ｋ温度下的吸附等温线来预测８９．９６Ｋ和７２．５Ｋ下的吸附等温线，并和实验数据相对比。结果证明ＭＣＳＰＴ、ＣＣＯＲ方程比ＰＲ方程更适于低温低压下吸附过程计算，理论计算结果与实验数据吻合较好，以ＭＣＳＰＴ方程最佳。In this paper adsorption potential curve for air was calculated by using adsorption isotherm data at 78. 8 K based on Polanyi potential theory. so the adsorptionisotherms at 89' 96 K and 72' 5 K were developed. The data developed by using MCSPT,CCOR equation of state have better agreement with the experimental data than those by using other equation of state, such as PR.

关 键 词：多孔物质 吸附性能 理论预测 低温 低压 

分 类 号：O513[理学—低温物理]