화학공학소재연구정보센터
학회 한국화학공학회
학술대회 1996년 가을 (10/18 ~ 10/19, 경북대학교)
권호 2권 2호, p.1593
발표분야 분리기술
제목 염기자리를 첨가한 카본 흡착제의 이산화탄소 흡착 특성
초록 Carbon adsorbents were chemically modified to have base sites on their surfaces and theadsorption characteristics of carbon dioxide on them were investigated. Three kinds of carbonmaterials were used as support materials : two activated carbons and a carbon black. Basesites were introduced by impregnating the support materials with calcium acetate solution,followed by calcination at 700℃ for 2 hours in the inert gas flow. Chemical modificationreduced surface areas of adsorbents due to the blocking of micropores. Irreversible adsorptionof carbon dioxide occurs up to 300℃ due to chemisorption. Reversible adsorption was possibleby pretreating adsorbents with carbon dioxide. Strong interaction between carbon dioxide andcalcium oxide made adsorption of carbon dioxide possible up to 250℃.
저자 송현곤, 이건홍
소속 포항공과대
키워드 Activated carbon; Impregnation; Adsorption; Surface Properties
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