膜法／深冷法联合空分的理论研究

Theoretical studies on the membrane cryogenic integrated process for air separation

利用硅橡胶膜分离器将空气的氧气、氩气、氪气和氙气等浓度提高，使氮气、氦气和氖气的浓度降低．再借助于深冷法提高空分过程中的氧气、氩气、氪气和氙气等的产量和浓度．此外，还获得了不抽氩馏份工作的空分设备的上塔塔板上的蒸汽和液体的计算浓度及温度分布等，并和法斯托夫斯基（豪森）的数据进行了对比．同时得到了温度与氧、氩和氮的饱和蒸汽压及焓等的关系的回归方程．并用Ｂａｓｉｏ语言编写了求解液空和液氮节流气化率的通用程序，能方便、快速。

A novel membrane cryogenic integrated process has been proposed to separate air mixture. First, oxygen concentration of air can be increased by 33%￣38%,argon 35%￣45%, krpton 80%￣95%,and xenon 120%￣150%, but nitrogen will be reduced by 10%￣12%,helium 7%￣9%,neon 15%￣17%, using a silicone rubber membrane separators. Then both productivity and concentration of oxygen,argon,krypton and xenon of the air separation processes can be increased by cryogenic processes.Moreover,distributions of temperature and concentration of the liquid and the vapor on the upper plates of air separation equipment in taking no away argon fraction have been obtained,and compared with that of Hausen.The regression equations of relationship between temperature and saturated vapor pressure,enthalpy of oxygen,argon and nitrgon are also obtained respectively. A general program to solve throttling vaporization coefficients of liquid air and liquid nitrogen has been compiled in basic language. The throttling vaporization coefficient can be solved with the program conveniently,quickly and accurately.