Fluidized carbonization process for agglomerative coals

Claim 1

THE METHOD OF CARBONIZING A FINELY DIVIDED AGGLOMERATIVE COAL HAVING PLASTIC PROPERTIES IN THE TEMPERATURE RANGE FROM ABOUT 725* TO ABOUT 825*F., WHICH COMPRISES MAINTAINING SAID COAL IN A FLUIDIZED STATE IN ADMIXTURE WITH FINELY DIVIDED NON-AGGLOMERATIVE SOLIDS AT A DISTILLATION TEMPERATURE IN THE PLASTIC RANGE OF SAID COAL BETWEEN ABOUT 725 AND ABOUT 835*F. FOR AT LEAST FIVE MINUTES, THE QUANTITY OF SAID NON-AGGLOMERATIVE SOLIDS BEING SUFFICIENT TO PREVENT AGGLOMERATION OF SAID COAL, THE RATIO OF SAID SOLIDS TO SAID COAL BEING LESS THAN WOULD BE REQUIRED TO RENDER INEFFECTIVE THE AGGLOMERATING TENDENCY OF THE COAL UNDER SIMILAR FLUIDIZED CONDITIONS AT A CARBONIZING TEMPERATURE ABOVE THE PLASTIC RANGE OF THE COAL LAND ABOVE ABOUT 825*F., THEREAFTER RAISING THE TEMPERATURE OF THE THUS TREATED PARTIALLY DEVOLATILIZED COAL IN ADMIXTURE WITH SAID SOLIDS WHILE IN A FLUIDIZED STATE TO A CARBONIZATION TEMPERATURE ABOVE 825*F. UNTIL SUBSTANTIALLY COMPLETE CARBONIZATION HAS BEEN EFFECTED, AND SEPARATELY RECOVERING FINELY DIVIDED DEVOLATILIZED COAL AND EVOLVED COAL VAPORS.

Claim 2

THE METHOD OF CARBONIZING A FINELY DIVIDED AGGLOMERATIVE COAL HAVING PLASTIC PROPERTIES IN THE TEMPERATURE RANGE FROM ABOUT 725* TO ABOUT 825*F., WHICH COMPRISES MAINTAINING SAID COAL IN A FLUIDIZED STATE IN ADMIXTURE WITH FINELY DIVIDED NON-AGGLOMERATIVE SOLIDS AT A DISTILLATION TEMPERATURE IN THE PLASTIC RANGE OF SAID COAL BETWEEN ABOUT 725 AND ABOUT 835*F. FOR AT LEAST FIVE MINUTES, THE QUANTITY OF SAID NON-AGGLOMERATIVE SOLIDS BEING SUFFICIENT TO PREVENT AGGLOMERATION OF SAID COAL, THE RATIO OF SAID SOLIDS TO SAID COAL BEING LESS THAN WOULD BE REQUIRED TO RENDER INEFFECTIVE THE AGGLOMERATING TENDENCY OF THE COAL UNDER SIMILAR FLUIDIZED CONDITIONS AT A CARBONIZING TEMPERATURE ABOVE THE PLASTIC RANGE OF THE COAL LAND ABOVE ABOUT 825*F., THEREAFTER RAISING THE TEMPERATURE OF THE THUS TREATED PARTIALLY DEVOLATILIZED COAL IN ADMIXTURE WITH SAID SOLIDS WHILE IN A FLUIDIZED STATE TO A CARBONIZATION TEMPERATURE ABOVE 825*F. UNTIL SUBSTANTIALLY COMPLETE CARBONIZATION HAS BEEN EFFECTED, AND SEPARATELY RECOVERING FINELY DIVIDED DEVOLATILIZED COAL AND EVOLVED COAL VAPORS.