Removing solids from a fluid
 A method and apparatus are provided for removing solid particles from a particle containing stream of fluid, the method including the steps of: inducing the stream to flow at supersonic velocity through a conduit; inducing a swirling motion to the supersonic stream of fluid thereby causing the particles to flow to a radially outer section of a collecting zone in the stream; and extracting the solid particles into an outlet stream from the radially outer section of the collecting zone. The apparatus is an apparatus effective for performance of this method. 
Shell Oil Company
B B B B B
B01D B01D B04C B01D B01D
inventional inventional inventional inventional inventional
J. W. H. M. Marco
van Veen Betting