WS1 is modelled as decanter for the mechanical separation of the liquid water rich and gaseous stream. Subsequently, the remaining water in the gaseous stream, stream 4, is separated in WS2, which is modelled as an ideal separator set to fully remove the remaining water. Those water traces can be nearly fully separated by e.g. molecular sieves with neglectable methane losses of 0.78% and an H2O/CH4 selectivity of 500 .