Method and apparatus for loading catalyst

B - Operations – Transporting – 01 – J

Patent

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Details

B01J 8/00 (2006.01) B01J 8/06 (2006.01)

Patent

CA 2534865

Methods and apparatus are disclosed for filling solid particles into a vertical tube by conveying the particles downwardly into the tube along a loading tool that softens the fall of the particles and provides even filling of the tube. The loading tool includes a center member and a plurality of damper members that can be adapted in particular cases to the actual type of particles and the tube diameter. The damper members can be stiff or flexible since they do not occupy a substantial portion of the cross section of the tube at any particular axial location. In operation, the center member can be jerked during the filling operation while simultaneously being lifted up gradually as the tube fills or it can be sequentially lifted. The damper members reduce the falling velocity of the particles and divert the particles from falling in straight downward paths. This avoids bridge formation and breakage of the particles during filling.

La présente invention concerne des procédés et des appareils permettant de verser des particules solides dans un tube vertical en transportant ces particules vers le bas dans le tube le long d'un outil de chargement qui atténue la chute de ces particules et permet un remplissage uniforme du tube. Cet outil de chargement comprend un centre et une pluralité d'amortisseurs qui peuvent être adaptés à des cas particuliers de type de particules et au diamètre du tube. Ces amortisseurs peuvent être rigides ou souples dans la mesure où ils n'occupent pas une partie importante de la section transversale du tube à quelque niveau axial particulier que ce soit. En fonctionnement, le centre peut être rejeté pendant le remplissage tout en étant relevé graduellement à mesure que le tube se rempli ou il peut être séquentiellement relevé. Les amortisseurs réduisent la vitesse de chute des particules et empêchent ces particules de tomber en ligne droite vers le bas. Ceci permet d'éviter la formation de pont et de cassure de particules pendant le remplissage.

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