Heating and treatment of particulate material

B - Operations – Transporting – 01 – J

Patent

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Details

B01J 6/00 (2006.01) B01J 8/18 (2006.01) C04B 2/10 (2006.01) C04B 5/06 (2006.01) C04B 7/43 (2006.01) C04B 7/44 (2006.01) C04B 7/47 (2006.01) F27B 15/08 (2006.01)

Patent

CA 2059538

The specification discloses a process for heating solid particulate materials. The process comprises entraining the solid particulate materials in a gas to form a stream of gas containing entrained particles and contacting this stream with a stream of hot gases. The contact between the two streams is performed in such a manner that at least a portion of the solid particulate material is heated rapidly and the heated and unheated particles enter flow patterns in which contact between the particles and with interior surfaces of a contact chamber is minimized. A heating end treatment chamber for applying the process to the treatment of solid particulate materials is disclosed. The specification also discloses a molten bath reactor combined with the chamber for heating and treating solid particulate materials. Hot off gases from the molten bath reactor can be passed through the chamber and treated particulate material from the chamber can be inserted in the molten bath reactor or partially recycled through the chamber.

Selon un procédé de chauffage de matériaux particulaires solides, les matériaux particulaires solides sont entraînés dans un gaz, formant un courant de gaz qui contient des particules entraînées, puis ce courant est mis en contact avec un courant de gaz chauds. Le contact entre les deux courants se fait de sorte qu'au moins une partie des matériaux particulaires solides soit rapidement chauffée, les particules chauffées et non chauffées adoptant des configurations d'écoulement qui minimisent le contact entre les particules et les surfaces internes d'une chambre de contact. Une chambre de chauffage et de traitement permettent de mettre en oeuvre ce procédé afin de traiter des matériaux particulaires solides. Un réacteur à bain de fusion est associé à la chambre afin de chauffer et de traiter des matériaux particulaires solides. Les gaz chauds dégagés par le réacteur à bain de fusion peuvent traverser la chambre et des matériaux particulaires traités dans la chambre peuvent être introduits dans le réacteur à bain de fusion ou être partiellement remis en circulation dans la chambre.

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