Stabilization of low rank coals after drying

Details Stabilization of low rank coals after drying Stabilization of low rank coals after drying

C - Chemistry, Metallurgy

10

L

C10L 9/00 (2006.01) C10G 1/00 (2006.01) C10L 9/08 (2006.01)

Patent

CA 2229130

A method of increasing the utility of low rank coal of high moisture content by stabilizing essential physical properties of the coal, following its drying by known methods, which without stabilization render it unsuitable for transportation and storage. The method employs controlled partial pyrolysis in a continuous flow configuration, using electromagnetic energy in novel ways. The stabilization an be carried out by this method at the very high rates required for commercial coal operations.

Procédé augmentant l'utilité du charbon de classe inférieure à forte teneur en humidité par stabilisation de ses propriétés essentielles, après séchage par des procédés connus, pour le rendre propre au transport et au stockage. Dans ce procédé, on recourt à la pyrolyse partielle modulée, dans une configuration à flux continu, en utilisant l'énergie électromagnétique de manière novatrice. Ce procédé permet d'assurer une stabilisation à la cadence très rapide qu'exigent les transactions commerciales concernant le charbon.

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