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활성탄소섬유에 의한 SO2와 NO 제거특성
The Removal of SO2 and NO by Activated Carbon Fibers
HWAHAK KONGHAK, April 1999, 37(2), 141-145(5), NONE
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Abstract
활성탄소섬유를 이용한 모델배기가스로부터의 SO2와 NO 제거 실험을 공정변수에 따라 수행하였다. SO2 제거 특성은 PAN계 활성탄소섬유가 Pitch계 활성탄소섬유에 비해 우수하였으며, 낮은 온도(20 ℃)와 높은 수분함량(20vo1%이하)에서 보다 큰 활성을 보였다. NO 제거 특성은 Pitch계 활성탄소섬유가 PAN계 활성탄소섬유에 비해 우수했으며, NH3의 존재에 따라 4배 큰 활성을 나타냈고 NH3/NO 몰비는 1, 높은 산소농도(15vo1%이하)에서 큰 NO전환율을 보였지만, 반응온도의 상승과 수분의 존재는 전환율의 감소를 가져왔다
The removal characteristics of SOx and NOx Removal, PAN-ACF, Pitch-ACF and NO, contained in simulated flue gas according to process conditions were investigated by Activated Carbon Fibers. For SO2 removal, PAN-ACF exhibited superior activity to pitch-ACF. The catalytic activity increased by H,0 concentration(below 20 vol%) and at the lower temperature near 20 ℃. For NO removal, pitch-ACF exhibited superior activity to PAN-ACF. The ACF exhibited four times higher activity for NO reduction with NH3, than without NH3, at NH3/NO feed ratio(=1) to the reactor and high 02 concentration(below 15 vol%). However, nitric oxide reduction also strongly inhibited by humidity and at the higher reaction temperature.
Keywords
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Kong Y, Cha CY, Carbon, 34, 1027 (1996)
