Take the gas to increase pressure and reduce the temperature to change the fluid and liquid gas, combined with the were at first, and then distilled to separate each type of gas.
Gas has led to increasing pressure and decreasing temperature, changing the fluid. Then be integrated with the liquid first. Then the gas refining each.
The gas to increase the pressure and reduce the temperature change of liquid. Then the combined with gas liquid at first. Then the refined gas separator of each species.