Modification to the burner in a direct coking process

Details Modification to the burner in a direct coking process Modification to the burner in a direct coking process

C - Chemistry, Metallurgy

10

B

196/32

C10B 55/00 (2006.01)

Patent

CA 1071558

MODIFICATION TO THE BURNER IN A DIRECT COKING PROCESS ABSTRACT OF THE DISCLOSURE Coked solids, produced by coking of tar sands, are contacted in a first zone with air and the minimum amount of supplemental fuel needed to burn all the coke. Part of the hot clean mineral solids produced is then discarded; the bal- ance is moved into a second zone. Here supplemental fuel is burned to increase the temperature of the solids. The hot solids from the second zone are recycled to the coking stage. Only part of the solids is heated with sup- plemental fuel, thereby reducing consumption of the latter. In addition, the flue gas from the second zone is relatively clean and can be vented directly to the atmosphere in the flue gas from the first zone.

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