활성탄에서 Freon-113의 흡착평형

임진규; 장원철; 이태진; 심재진; 최대기; 이윤용

HWAHAK KONGHAK, Vol.32, No.3, 341-347, June, 1994

Export Citation

활성탄에서 Freon-113의 흡착평형

Adsorption Equilibria of Freon-113 on Activated Carbons

임진규, 장원철, 이태진, 심재진, 최대기, 이윤용

초록

두 가지 활성탄에 대한 프레온-113(trichlorotrifluoroethane, CC1₂FCC1F₂)의 흡착평형을 용량법으로 473 K의 진공에서 밤새 처리한 후에 298-473K에서 축정하였다. 흡착제로는 입상 활성탄(Norit B4, 20-40 mesh로 분쇄)과 섬유상 활성탄(KF-1500)을 사용하였다. 흡착온동의 증가에 따라 전체흡착량에 대한 가역흡착분율이 증가하였으며 473K의 흡착은 전적으로 가역이었다. 모든 등온선들은 I 형이었으며 이력현상은 관찰되지 않았다. Clausius-Clapeyron식으로 구해진 흡착열은 표면점유율에 상관없이 거의 일정하였다. 실험측정치를 BET상관식, Langmuir식, Dubinin-Astakhov식으로 해석하였다.

Adsorption equilibria of Freon-113(trichlorotrifluoroethane, CCl₂FCCIF₂) on two activated carbons were measured at 298-473 K by using a static adsorption apparatus. Granular activated carbon(Norit B4, crushed 20-40 mesh) and activated carbon fiber(KF-1500) were used as adsorbents. They were regenerated overnight at 473 K under vacuum condition before experiments. The portion of the reversible to the total uptake increased with temperature and the adsorption at 473 K was found to be completely reversible. All the isotherms obtained in this study were type I. They showed no apparent hysteresis. The heat of adsorption calculated from Clausius-Clapeyron equation remained nearly constant irrespective of the surface coverage. Experimental data were correlated by BET, Langmuir, and Dubinin-Astakhov equations.

[References]

Molina MJ, Rowland FS, Nature, 249, 811 (1974)
이윤용, 최대기, "CFC 회수장치 개발에 관한 연구," 상공자원부 (1991)
Kobayashi S, Mizuno K, Kushiyama S, Aizawa R, Koinuma Y, Ohuchi H, Ind. Eng. Chem. Res., 30, 2340 (1991)
Machin WD, Stuckless JT, J. Colloid Interface Sci., 108, 46 (1985)
Kodama K, Kaguei S, Wakao N, Can. J. Chem. Eng., 70, 244 (1992)
Kang SH, Lee TJ, Bae KS, Ahn HK, Kim YK, HWAHAK KONGHAK, 27(4), 404 (1989)
강석호, 이태진, 안희관, 김윤갑, 한국대기보전학회지, 9, 101 (1993)
Reid RC, Prausnitz JM, Poling BE, "The Properties of Gases & Liquids," McGraw-Hill, New York (1987)
David RL, "CRC Handbook of Chemistry and Physics," CRC Press Inc., U.S.A. (1991)
Tomizawa T, Nagakawa Y, Arita K, 化學工學, 18, 31 (1992)
Kuo SL, Hines AL, J. Chem. Eng. Data, 37, 1 (1992)
Brunauer S, "The Adsorption of Gases and Vapors," Vol. 1, Princeton University Press, Princeton (1945)
Young DM, Crowell AD, "Physical Adsorption of Gases," Butterworths, Washington (1962)
Anderson RB, "Experimental Methods in Catalytic Research," Vol. 1, Academic Press, New York (1968)
Dubinin MM, Astakhov VA, "Molecular Sieve Zeolites II," Academic Press, New York (1971)
Kawai T, Kag. Kog., 40, 393 (1976)
Kawazoe K, Astakhov VA, Kawai T, Eguchi Y, Kag. Kog., 35, 1006 (1971)
Kawazoe K, Kawai T, Eguchi Y, Itoga K, J. Chem. Eng. Jpn., 7, 158 (1974)

[Referenced By]

[1] Molina MJ, Rowland FS, Nature, 249, 811 (1974)

[2] 이윤용, 최대기, "CFC 회수장치 개발에 관한 연구," 상공자원부 (1991)

[3] Kobayashi S, Mizuno K, Kushiyama S, Aizawa R, Koinuma Y, Ohuchi H, Ind. Eng. Chem. Res., 30, 2340 (1991)

[4] Machin WD, Stuckless JT, J. Colloid Interface Sci., 108, 46 (1985)

[5] Kodama K, Kaguei S, Wakao N, Can. J. Chem. Eng., 70, 244 (1992)

[6] Kang SH, Lee TJ, Bae KS, Ahn HK, Kim YK, HWAHAK KONGHAK, 27(4), 404 (1989)

[7] 강석호, 이태진, 안희관, 김윤갑, 한국대기보전학회지, 9, 101 (1993)

[8] Reid RC, Prausnitz JM, Poling BE, "The Properties of Gases & Liquids," McGraw-Hill, New York (1987)

[9] David RL, "CRC Handbook of Chemistry and Physics," CRC Press Inc., U.S.A. (1991)

[10] Tomizawa T, Nagakawa Y, Arita K, 化學工學, 18, 31 (1992)

[11] Kuo SL, Hines AL, J. Chem. Eng. Data, 37, 1 (1992)

[12] Brunauer S, "The Adsorption of Gases and Vapors," Vol. 1, Princeton University Press, Princeton (1945)

[13] Young DM, Crowell AD, "Physical Adsorption of Gases," Butterworths, Washington (1962)

[14] Anderson RB, "Experimental Methods in Catalytic Research," Vol. 1, Academic Press, New York (1968)

[15] Dubinin MM, Astakhov VA, "Molecular Sieve Zeolites II," Academic Press, New York (1971)

[16] Kawai T, Kag. Kog., 40, 393 (1976)

[17] Kawazoe K, Astakhov VA, Kawai T, Eguchi Y, Kag. Kog., 35, 1006 (1971)

[18] Kawazoe K, Kawai T, Eguchi Y, Itoga K, J. Chem. Eng. Jpn., 7, 158 (1974)