대체 연료 사용량 증대를 위한 시멘트 소성로 염소 거동 파악 및 염소 바이패스 설비 적용 효과 연구
Study on the Behavior of Chlorine in Cement Kilns for Increasing Alternative Fuel Usage and the Effect of Applying Chlorine Bypass Facilities
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초록
시멘트 소성로에서 폐합성수지와 같은 대체 연료 사용량 증대와 시멘트 소성로 내부 염소 성분의 안정적인 제어를 위하여 chlorine bypass (이하 CB라 칭함) 설비 적용 효과를 예측함으로써 향후 대체 연료 사용량 증가에 따른 적정 CB 설비 용량을 파악하고자 하였다. 염소 성분 거동 예측을 위하여 현재 시멘트 소성로 운전조건에서 염소 성분 거동 현황 및 mass-balance를 측정 후 폐합성수지 사용량 및CB 비율 변화에 따른 시멘트 소성로에서 염소 성분 거동을 예측하였다. 염소 성분 거동 계산 결과, 시멘트 연료 대체 사용량 22.8%(폐합성수지 투입량 252 ton/day)를 향후 81.3%(폐합성수지 투입량 900 ton/day) 수준으로 증가한다고 가정할 때 소성로 inlet에서 현재 수준의 염소 농도를 유지하기 위한 CB 비율은 10% 수준인 것으로 예측되었다.
Abstract
To enhance the use of alternative fuels such as waste synthetic resin and stabilize chlorine control in cement kilns, this study investigates the effects of implementing a chlorine bypass (CB) system and determines the required CB capacity for future increases in alternative fuel usage. By analyzing the behavior and mass balance of chlorine components under current cement kiln operating conditions, the chlorine behavior was predicted under varying waste synthetic resin inputs and CB ratios. The results indicate that increasing alternative fuel usage from 22.8% (252 ton/day of waste synthetic resin input) to 81.3% (900 ton/day) necessitates a CB ratio of approximately 10% to maintain the current chlorine concentration at the kiln inlet. This study provides valuable insights for optimizing alternative fuel utilization in cement kilns while ensuring effective chlorine management.
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