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논문 기본 정보

자료유형
학술저널
저자정보
정현태 (포스코건설) 백승기 (연세대학교) 이민호 (포스코건설) 구병권 (포스코건설) 서용칠 (연세대학교)
저널정보
한국폐기물자원순환학회 한국폐기물자원순환학회지 한국폐기물자원순환학회지 제34권 제3호
발행연도
2017.1
수록면
282 - 291 (10page)

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This study has focused on identifying the cause of agglomeration that occurred in a domestic commercial-scalecirculating fluidized bed boiler. Solid refuse fuel (SRF) was fed into the target facility to produce electricity. Agglomerationoccurred in the combustor and cyclone during commercial operation. The bed material, clinkers produced in the combustorand cyclone, and boiler ash were collected, and components that are known to cause agglomeration were analyzed. Additionally, the possibility of slagging and fouling formation was predicted using components obtained by XRF analysis. The melting temperature of the bed material was decreased by complex reactions of low-boiling-point metal, alkaline metaland sulfur, and chlorine components. Then, agglomeration was generated because the bed material and ash were meltedand combined. Basicity (B/A), which can lead to slagging, was estimated to be above 1.0 (reference 0.5 < B/A < 1.0). The boiler ash had a basicity of 1.83. The slag viscosity index (SVI) was estimated to be between 18.83 and 49.78(reference 65 < SVI < 72). The boiler ash and combustor clinker had 3.30 and 4.40 total alkali (TA) values, respectively(reference 0.3 < TA < 0.4). This condition determined that slagging and fouling formation easily progressed. This resultis expected to be utilized as data for preventing agglomeration formation and clinker generation.

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