Al and or coal derivatives method for simultaneously calcining and desulfurizing agglomerates co

Abstract

Abstract AGGLOMERATES OF COAL AND/OR COAL DERIVAITIVES ARE SIMULTANIOUSLY CALCINED AND DESULFURIZED BY EXPOSURE TO HEATED PARTICLES OF A DESULFURIZING AGENT IN A ROTARY KILN. THE AGGLOMERATES AND HEATED PARTICLES OF THE DESULFURIZING AGENT FLOW COUNTERCURRENTLY THROUGH THE KILN. THE AGGLOMERATES ARE CHARGED INTO THE KILN WITHIN A TEMPERTURE RANGE OF BETWEEN ABOUT AMBIENT TEMPERATURE TO ABOUT 850*F. THE AGGLOMERATES ARE DISCHARGED AT A TEMPERATURE ABOVE ABOUT 1400*F. IT IS PREFERRED TO DISCHARGE THE AGGLOMERATES AT A TEMPERATURE ABOVE ABOUT 1950*F. THE AGGLOMERATES ARE HEATED BY HEAT EXCHANGE WITH THE PARTICLES OF THE DESULFURIZING AGENT WHICH ARE CHARGED INTO THE KILN AT A TEMPERATURE ABOVE ABOUT 1400*F. IT IS PREFERRED TO CHARGE THE PARTICLES OF THE DESULFURZING AGENT AT A TEMPERATURE ABOVE ABOUT 1950*F. THE PARTILES OF THE DESULFURZING AGENT CAN BE AT ABOUT 600*F. AND PREFERABLY ABOUT 1100*F. WHEN DISCHARGED, DEPENDENT UPON THE TEMPERATURE OF THE AGGLOMERATES WHEN CHARGED. THE AGGLOMERATES SO PRODUCED HAVE A RELATIVELY MEDIUM OR LOW REACTIVITY TO CARBON DIOXIDE AT ELEVATED TEMPERATURES, GOOD RESISTANCE TO ABRASION AND SUFFICIENT STRENGTH TO RESIST DEGRADATION WHEN TRANSPORTED AND CHARGED INTO A FURNACE.

Inventors

• 👤 E Mancke

Bibliographic Details