It has certain sense for further study and application to the simulation of airdistillation tower.
对进一步研究并应用于空分塔模拟计算具有一定的指导意义。
2
K. Neon, argon, and krypton are obtained from fractional distillation of liquid air.
氖、氩、氪都能够通过分馏液态空气获得。
3
Nitrogen is produced at air separation plants by liquefaction of atmospheric air and separation of the nitrogen by distillation. The nitrogen is then recovered as a cryogenic liquid.