Separating methane and CO
(WorldNews Belgium)

When it comes to extracting natural gas or producing biogas, it`s all about the methane. But methane is never found in its pure form. Natural gas, for instance, always contains quite a bit of carbon dioxide (the greenhouse gas CO), sometimes up to 50 percent. To purify the methane - or, in other words, remove the CO- the industry often uses membranes. These membranes function as molecular sieves that separate the methane and the CO. The methane can then be used as a...