화학공학소재연구정보센터
HWAHAK KONGHAK, Vol.37, No.2, 141-145, April, 1999
활성탄소섬유에 의한 SO2와 NO 제거특성
The Removal of SO2 and NO by Activated Carbon Fibers
초록
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.
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