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HWAHAK KONGHAK,
Vol.32, No.2, 195-205, 1994
Vol.32, No.2, 195-205, 1994
염화제1구리를 함침시킨 활성탄 고정 흡착증의 CO 및 CO2 흡착특성
Adsorption of CO and CO2 on Fixed Bed of Activated Carbon Impregnated with Cuprous Chloride
활성탄에 염화제1구리를 함침시킨(37wt%) 흡착 고정 흡착층에 대하여 일산화탄소 및 이산화탄소의 흡착 거동특성을 실험하였다. 그 결과, 흡착평형량이 작은 이산화탄소의 파괴점이 일산화탄소에 비하여 조기에 형성되므로 혼합가스로부터 일산화탄소의 선택적 분리가능성을 확인하였다. 각 성분의 파과거동은 흡착가스의 농도보다는 고정 흡착층의 온도와 흡착기체의 유속에 크게 영향을 받는 것으로 나타났다. FH-VSM 흡착평형 모델식을 근거로 고정 흡착층내 흡착거동 및 파과특성을 계산할 수 있는 방법을 제안하였다. 고정 흡착층 모델의 모사결과 실험으로부터 얻어낸 흡착특성을 비교적 정확히 해석할 수 있다.
Adsorption characteristics of CO and CO2 gases for a fixed-bed adsorber filled with 37wt% CuCl-impregnated activated carbon were measured. We found that the amount of equilibrium adsorption of CO2 is less than that of CO on the adsorbent. Accordingly, the breakthrough point of CO2 was reached earlier than the case of CO. As a result, we concluded that the adsorbent prepared in this work can possibly be used to selectively separate CO from the mixture of CO and CO2 gases. Also, the experiment showed that the behavior of breakthroughs mainly depend on bed temperature and gas flowrate rater than the concentration of component to be adsorbed. Finally, a method that can calculate adsorption characteristics of the bed was proposed based on the theory of FH-VSM equilibrium isotherm. The calculated adsorption behaviors agree well with the experiment.
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