C - Chemistry – Metallurgy – 10 – J
Patent
C - Chemistry, Metallurgy
10
J
48/36
C10J 3/54 (2006.01) C10B 49/22 (2006.01) C10G 1/02 (2006.01) C10J 3/12 (2006.01)
Patent
CA 1081466
ABSTRACT OF THE DISCLOSURE COUNTERCURRENT PLUG-LIKE FLOW OF TWO SOLIDS Disclosed is a process for contacting at least two solids and a fluid. More particularly, disclosed is a process for retorting and/or gasification of solid carbonaceous materials such as coal, coke, shale or tar sands in which a solid heat-transfer material is introduced into an upper portion of a vessel and a solid carbonaceous material is introduced into a lower portion of the vessel. The solid heat carrier is fluidized by an upflowing gas while the solid carbonaceous materials are entrained. The solid heat-transfer material substantially flows downward through the vessel while the solid carbonaceous material flows upward. If the fluidiz- ing gas is inert, then as the solid carbonaceous material flows upward, it is heated by the downflowing heat transfer material and the volatile or liquefiable hydrocarbons in the solid become part of or are entrained in the fluidizing gas. If the fluidizing gas is reactive, then the solid is gasified and the solid heat-transfer material is either heated or cooled depending on whether the gasification reaction is endothermic or exothermic. Substantially countercurrent plug flow of the two solids in the vessel is maintained by including a packing material in the vessel.
265967
Mitchell David S.
Sageman David R.
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