Twister Supersonic Separator

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Twister Supersonic Separator is a compact tubular device which is used for the removing water and/or hydrocarbon dewpointing of natural gas. The principle of operation is similar to the near isentropic Brayton cycle of a turbo-expander. The gas is accelerated to supersonic velocities within the tube and inlet guide vanes spin the gas around an inner-body which creates the ballerina effect and centrifugally separates the water and liquids in the tube. Hydrates do not form in the Twister tube due to the sheer forces involved. A secondary separator treats the liquids and slip gas and also acts as a hydrate control vessel. Twister is able to dehydrate to typical pipeline dewpoint specifications and relies on a pressure drop from the inlet of about 25%, dependent on the performance required.

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