In the first step of the process, the raw gas is pretreated and compressed to operating pressure. After drying, heating and fine purification, the gas is fed into the membrane modules. The carbon dioxide is separated from the methane by selective gas permeation, with the CO2 passing through the surface of the membranes more quickly than the methane, which is retained in the membranes and removed from the modules as product gas.
This is a plug-and-play process technology requiring no additional operating resources such as water or heat.
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