Patent ID: 6835361
Filing Date: 2004-12-28
Classification: B01J,C01G

Abstract:
An improved apparatus for introducing a high flow rate of a gaseous reactant which contains or picks up solid particles into a tubular reactor comprising:a cylindrical gaseous reactant injection chamber having a closed forward end and a rearward end adapted to be sealingly connected to the upstream end of said tubular reactor and having an annular opening around the periphery thereof; a first annular plenum chamber having an outside wall and at least one side sealingly attached to the exterior of said gaseous reactant injection chamber, said first plenum chamber having an annular side outlet and having a tangential inlet for receiving a high flow rate stream of said gaseous reactant containing solid particles and for causing said stream to swirl therein; a second annular plenum chamber having an outside wall and sides and having a larger diameter than said first plenum chamber sealingly attached to the exterior of said gaseous reactant injection chamber, said second plenum chamber having an annular side inlet sealingly attached to said annular side outlet of said first plenum chamber; an annular slot formed within said second plenum chamber adjacent to the side thereof opposite from said annular side inlet thereof, said annular slot being sealingly attached over said annular opening in said gaseous reactant injection chamber and extending to near the outside wall of said second plenum chamber; and a plurality of spaced vanes attached within said annular slot to thereby form two or more radial slots therein.