Abstract: The invention relates to a device for separating a flowing medium mixture into at least two fractions with differing mass density. The device comprises an inlet for the medium mixture to be separated, which connects to first separating means for separating the flowing mixture in at least a first and a second fraction, and that connect to first and second outlet means for discharging the first and second fractions. The device further comprises a feedback loop comprising second separating means between the second outlet means and the inlet means of the first separating means. The invention also relates to a method for separating a flowing medium mixture into at least two fractions with differing mass density, using the claimed device. The device and method allow to obtain a more selective separation, particularly in purifying natural gas.

Abstract: A device for separating a flowing medium mixture into at least two fractions, comprising rotating means (7) in the form of a rotating assembly of feed channels (6) for rotating the flowing mixture for separating, a feed for the medium mixture (5) for separating connecting to the rotating means, and an outlet connecting to the rotating means for discharging one of the fractions of the separated medium mixture, wherein the medium mixture can display a substantially turbulent flow during separation. Also disclosed is a method for separating a flowing medium mixture.

Abstract: A device for separating a flowing medium mixture into at least two fractions, comprising rotating means (7) in the form of a rotating assembly of feed channels (6) for rotating the flowing mixture for separating, a feed for the medium mixture (5) for separating connecting to the rotating means, and an outlet connecting to the rotating means for discharging one of the fractions of the separated medium mixture, wherein the medium mixture can display a substantially turbulent flow during separation. Also disclosed is a method for separating a flowing medium mixture.