Process for making metallurgical coke using fluidizer char

Details Process for making metallurgical coke using fluidizer char Process for making metallurgical coke using fluidizer char

1978-08-21

1981-02-03

Garris, Bradley R.

Distillation: processes, thermolytic

And shaping to desired form or configuration

Prior to charging to carbonizing zone

44 1F, 44 15A, 44 23, 201 22, 201 23, 208 8LE, C10B 4502, C10B 5308, C10B 5502, C10B 5704

Patent

active

042486696

ABSTRACT:
The present invention is an improvement in the known process of making a coking feedstock from non-caking or weakly caking coals for slot-type coke ovens wherein the coal is subjected to solvent extraction; and at least the non-distillable extract in the effluent slurry product, after removal of part or all of the solvent, is mixed with carbonaceous solids to serve as a binder therefor. The improvement resides in the use of fluidizer char (which is produced by the low temperature carbonization of coal in a fluidized bed) as the carbonaceous solids. The fluidizer char is preferably mixed with the coal extract slurry (after removal of solvent) in a liquid state at elevated temperatures under pelletizing and non-carbonizing conditions. The pelletized product, after cooling and crushing, is suitable as part or all of the coking feedstock for coke ovens.

REFERENCES:
patent: 2686152 (1954-08-01), Franke
patent: 2776935 (1957-01-01), Jahnig et al.
patent: 3117918 (1964-01-01), Batchelor et al.
patent: 3562783 (1971-02-01), Gorin
patent: 3748254 (1973-07-01), Gorin
patent: 3920418 (1975-11-01), Rice
patent: 4201655 (1980-05-01), Theodore et al.

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