Apparatus and method for the separation and stripping of...

B - Operations – Transporting – 01 – J

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B01J 8/26 (2006.01) B01J 8/00 (2006.01) B01J 8/24 (2006.01) B04C 5/107 (2006.01) B04C 5/18 (2006.01) B04C 9/00 (2006.01) C10G 11/18 (2006.01)

Patent

CA 2250197

Integrated disengager and stripper (2) for separating solid particles suspended in vapour and for stripping adsorbed and entrained residue from the solid particles comprising: a disengager vessel (3) having a primary fluidized- bed zone (10), and a primary injector (12) for injecting into the primary luidized-bed zone (10) a gas for fluidizing or stripping solid particles; a vertical primary cyclone (6), which has a cylindrical side wall (15) and is closed at its upper end by means of a cover (17) provided with an outlet opening (19) and open at its lower end, which primary cyclone (6) is further provided with an inlet (24) for receiving a suspension of solid particles and vapour; and a first outlet conduit (30) for providing a flow path from the outlet opening (19) of the primary cyclone (6), wherein the open lower end (32) of the primary cyclone (6) projects downwardly into the primary fluidized- bed zone (10) so as to form a secondary fluidized-bed zone (35) within the open lower end (32) of the primary cyclone (6), and wherein suitably there is provided a secondary injector (41) for injecting into the secondary fluidized- bed zone (35) a gas for fluidizing or stripping solid particles.

La présente invention concerne un appareil intégré de dépouillement et de strippage (2) permettant de séparer les particules solides en suspension dans la vapeur et d'en extraire les résidus adsorbés et entraînés par elles. Ledit appareil comprend un récipient de dépouillement (3) muni d'une zone de lit fluidisé primaire (10) et d'un injecteur primaire (12) qui injecte dans ladite zone de lit fluidisé primaire (10) un gaz destiné à fluidiser ou à rectifier les particules solides; un cyclone primaire vertical (6) fermé en son extrémité supérieure par un couvercle (17) pourvu d'un orifice d'échappement (19) et ouvert en son extrémité inférieure, muni d'une paroi latérale cylindrique (15) et d'un passage (24) pour l'admission d'une suspension de particules solides et de vapeur; et un premier conduit de sortie (30) constituant une voie d'écoulement depuis l'orifice de sortie (19) du cyclone primaire (6). L'extrémité inférieure ouverte (32) du cyclone primaire (6) est projetée vers le bas dans la zone de lit fluidisé primaire (10) de manière à former, à l'intérieur de l'extrémité inférieure ouverte (32) du cyclone primaire (6), une zone de lit fluidisé secondaire (35) dans laquelle est placé un injecteur secondaire (41) permettant d'injecter un gaz dans ladite zone de lit fluidisé secondaire (35) afin de fluidiser ou rectifier les particules solides.

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