염화아연(ZnCl 2 ) 부활법에 의해 제조한 목재 활성탄의 특성

The effect of ratio between chemical activating agent and raw material in the preparation of activated carbons from wood has been studied. Pinus koraiensis wood and zinc chloride ($ZnCl_2$) were used for materials in this study. Mixtures of wood and zinc chloride were heated under nitrogen flow in t...

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Veröffentlicht in:Journal of forest science 2007, Vol.23 (1), p.51-55
Hauptverfasser: 권구중, 권성민, 김남훈, Kwon, Gu-Joong, Kwon, Sung-Min, Kim, Nam-Hun
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Sprache:kor
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Zusammenfassung:The effect of ratio between chemical activating agent and raw material in the preparation of activated carbons from wood has been studied. Pinus koraiensis wood and zinc chloride ($ZnCl_2$) were used for materials in this study. Mixtures of wood and zinc chloride were heated under nitrogen flow in the temperature ranging from room-temperature to $600^{\circ}C$ for 1 hr using thermogravimetric technique. During heat treatment, activated carbons with various pore size and specific surface properties were obtained. The maximum BET surface area and total pore volume were $1468m^2/g$ and 1.74 cc/g, respectively, at the mixture ratio of 1 (wood powder) to 5 ($ZnCl_2$). It can be concluded that the differences in the properties of the activated carbons were related significantly with the ratio of chemical activating regent. 본 연구는 염화아연을 이용한 화학약품 부활법으로 잣나무재 활성탄을 제조하기 위해 원료에 대한 화학약품부활제 비율의 영향을 검토하였다. 염화아연과 혼합한 목분은 질소분위기에서 상온에서 $600^{\circ}C$까지 1시간 열처리하여 중량변화를 측정하였다. 이 처리과정에 있어 활성탄 내부에 다양한 공극크기 분포와 표면특성이 확인되었다. 즉, 최대 BET 표면적과 총 공극체적은 목분에 대하여 염화아연의 비율이 5배인 경우였으며, 각각 그 값은 $1468m^2/g$와 1.74 cc/g이었다. 결론적으로 활성탄 제조시 화학약품부활제의 비율에 의해 활성탄의 특성이 뚜렷하게 차이가 나타나는 것이 확인되었다.
ISSN:2287-2396
2287-240X