Patent ID: 6042717
Filing Date: 2000-03-28
Classification: B01J,C10G

Abstract:
A method of mixing fluidized particles with an at least partially liquid feed stream comprising hydrocarbons, said method comprising:a) introducing fluidized particles into an upstream section of a particle transport conduit;b) passing the particles downstream through the transport conduit into a feed contact zone having a reduced cross sectional area formed by parallel solid chords extending transversely and inwardly from the sidewalls of the transport conduit;c) injecting feed into the particle stream at or immediately upstream or downstream of the chords and along a transverse distance substantially equal to the length of the chords;d) accelerating a mixture of feed and particles in a downstream direction in the transport conduit through an expansion zone; said expansion zone having a continuously increasing cross sectional area; and,e) passing the mixture of feed and particles from said expansion zone into a section of the transport conduit having a uniform cross sectional area for further contacting of the feed in the presence of the particles or separation of the feed from the particles.