Physicochemical characteristics of waste sea shells for acid gas cleaning absorbent |
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| Authors: | Jong Hyeon Jung Byung Hyun Shon Kyung Sun Yoo Kwang Joong Oh |
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| Affiliation: | (1) Dept. of Environmental Engineering, Sorabol College, 165 Chung-hyo dong, Kyong-ju, 780-711 Kyungbuk, Korea;(2) Dept. of Environmental Engineering, Hanseo University, Hae-mi myun, Seosan, 356-820 Chung-nam, Korea;(3) Dept. of Environmental Engineering, Kawngwoon University, Wolke-Dong, Noweon Gu, 139-701 Seoul, Korea;(4) Dept. of Environmental Engineering, Pusan National University, San 30, Changjeon-Dong, Kumjeong-Gu, 609-735 Pusan, Korea |
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| Abstract: | The properties of waste shells, which cause pollution problems, are investigated in Southern beach, Korea. The absorbent surface area was affected by the contaminant gas removal efficiency of the waste shell absorbents, pore structures, absorbent deliquescence and hygroscopicity during the contaminant gas reaction. The BET surface area of calcination/hydration waste shell and limestone samples was increased by hydration in isothermal conditions. The absorption rate with acid gas is predicted by apparatus for measuring the hydration rate. The BET surface area of waste shell samples hydrated at 90 ‡C isothermal condition was greatly increased. And pore size distribution and diameter were increased after calcination/hydration reaction. Waste seashells can be regarded as a good absorbent for removing acid gases. Therefore, the recycling of waste seashells as a substitute for limestone would be profitable. Key words:Waste Shell, Absorbent, Hydration Rate, Flue Gas Desulfurization This paper was presented at The 5th International Symposium on Separation Technology-Korea and Japan held at Seoul between August 19 and 21, 1999. |
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| Keywords: | waste shell absorbent rate hydration flue gas |
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