Patent ID: 6776825
Filing Date: 2004-08-17
Classification: B01D,B04C

Abstract:
A device for removing a selected gaseous component from a stream of fluid containing a plurality of gaseous components, comprising:means for providing a non-isenthalpic expansion of said fluid stream so as to decrease the temperature of the fluid to below a selected temperature at which one of condensation and solidification of the selected component occurs thereby forming particles of the selected component; an axial velocity reducing section downstream of the means for providing a non-isenthalpic expansion; swirl imparting means to impart a swirling motion to the stream of fluid thereby inducing the particles to flow to a radially outer section of a collecting zone in the stream; means for enforcing a swirling motion in said fluid stream; and means for extracting the particles into an outlet stream from said radially outer section of the collecting zone, wherein the means for enforcing the swirling motion is downstream the swirl imparting means and upstream the collecting zone and wherein the collecting zone is downstream of the axial velocity reducing section.