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Effect of Recirculation of Rotary Kiln Exhaust Gas for the Carbonation of Lime on the Combustion Conditions and the Amounts of NOx  

Lee Man-Seung (목포대학교 신소재공학과)
Lee Si-Hyunh (포스코 기술연구소)
Publication Information
Resources Recycling / v.12, no.1, 2003 , pp. 41-47 More about this Journal
Abstract
In order to improve the hydration resistance of lime in the air at room temperature, carbonation and hydration experiments have been conducted. Carbonation of the surface of lime by about 6 wt％ was needed to suppress the hydration of lime used in steel-making. The effect of recirculation of rotary kiln exhaust gas for the carbonation of lime on the combustion temperature and NOx concentration was analyzed by thermodynamics. From the thermodynamic calculation results, it was frond that the equi-librium combustion temperature and NOx concentration decreased with increasing volume percentage of exhaust gas.
Keywords
Lime; Carbonation; Hydration; Exhaust gas recirculation; Combustion temperature; NOx;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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