Figure 9. Efficiency of methane separation vs. total quantity of methane and carbon dioxide introduced to module VPSA

From

Effective Recovery of Methane from Coal Mine Methane Gas by Vacuum Pressure Swing Adsorption: A Pilot Scale Case Study

Andrzej Olajossy

Chemical Engineering and Science. 2013, 1(4), 46-54 doi:10.12691/ces-1-4-1