Most commercial helium is recovered from natural gas through a cryogenicseparation process.
大多数商用氦是通过一种低温分离过程从天然气中回收的。
2
A new separation and liquefaction of hydrogen at the same time by means of a new cryogenicseparation method was presented.
提出采用新的低温分离法将焦炉气中的氢分离并同时液化，及分区液化和分段加压模型。
3
This paper discussed the economy of increasing LPG recovery rate with two different schemes of increasing processes in de-ethane tower and cryogenicseparation processes.