Production of low sulfur formcoke

Claim 1

THE METHOD FOR PREPARING LOW-SULFUR CALCINED FORMCOKE OF METALLURGICAL GRADE WHICH COMPRISES HEATING COALCHAR AGGLOMERATES, INCLUDING CAKING BITUMINOUS COAL AND LOW-DENSITY CHAR OBTAINED BY A LOW TEMPERATURE CARBONIZATION BELOW 1400*F. OF CAKING BITUMINOUS COAL, THE CHAR CONTENT OF THE COAL-CHAR AGGLOMERATES BEING AT LEAST 40 PERCENT BY WEIGHT THEREOF, AT A CARBONIZATION TEMPERATURE NOT GREATER THAN 1250*F. TO CARBONIZE THE AGGLOMERATES, HEATING THE CARBONIZED AGGLOMERATES FROM A TEMPERATURE BELOW 1300*F. TO A TEMPERATURE ABOVE 1550*F. WHILE FEEDING THEM AT LEAST AT ATMOSPHERIC PRESSURE IN A DESCENDING COLUMN IN COUNTERCURRENT RELATION TO AN UPWARDLY MOVING STREAM OF GAS CONSISTING PRINCIPALLY OF HYDROGEN, WHEREBY DESULFURIZATION AND CALCINING OF THE AGGLOMERATES ARE EFFECTED, AND RECOVERING THE AGGLOMERATES AS LOW-SULFUR CALCINED FORMCOKE OF METALLURGICAL GRADE.

Claim 2

THE METHOD FOR PREPARING LOW-SULFUR CALCINED FORMCOKE OF METALLURGICAL GRADE WHICH COMPRISES HEATING COALCHAR AGGLOMERATES, INCLUDING CAKING BITUMINOUS COAL AND LOW-DENSITY CHAR OBTAINED BY A LOW TEMPERATURE CARBONIZATION BELOW 1400*F. OF CAKING BITUMINOUS COAL, THE CHAR CONTENT OF THE COAL-CHAR AGGLOMERATES BEING AT LEAST 40 PERCENT BY WEIGHT THEREOF, AT A CARBONIZATION TEMPERATURE NOT GREATER THAN 1250*F. TO CARBONIZE THE AGGLOMERATES, HEATING THE CARBONIZED AGGLOMERATES FROM A TEMPERATURE BELOW 1300*F. TO A TEMPERATURE ABOVE 1550*F. WHILE FEEDING THEM AT LEAST AT ATMOSPHERIC PRESSURE IN A DESCENDING COLUMN IN COUNTERCURRENT RELATION TO AN UPWARDLY MOVING STREAM OF GAS CONSISTING PRINCIPALLY OF HYDROGEN, WHEREBY DESULFURIZATION AND CALCINING OF THE AGGLOMERATES ARE EFFECTED, AND RECOVERING THE AGGLOMERATES AS LOW-SULFUR CALCINED FORMCOKE OF METALLURGICAL GRADE.