구형 실리카겔이 충전된 흡착탑에서의 CFC-113의 물질전달

조성용

Journal of the Korean Industrial and Engineering Chemistry, Vol.6, No.3, 390-396, June, 1995

Export Citation

구형 실리카겔이 충전된 흡착탑에서의 CFC-113의 물질전달

Mass Transfer of CFC-113 in Adsorption Bed with Silica Gel Spheres

조성용

초록

구형 실리카겔에 재한 1,1,2-trichloro-2,2,1-trifluoroethane(CFC-113)의 흡착 실험을 등온 하에서 수행하였으며 Linear Driving Force(LDF)모델을 사용하여 유효 총괄 물질 계수(Effective Overall Mass Transfer Coefficient)를 구하였다. 본 연구는 고정층 흡착탑 설계에서 중요한 인자인 평형 흡착량과 유효 총괄 물질 전달 계수를 고찰하였으며 298K에서 CFC-113의 탑 내주입 농도가 유효 총괄 물질 계수에 미치는 영향을 고찰하였다. 또한 LDF모린에 의한 전산 모사 결과를 사용하여 본 연구에서 얻어진 실험 결과를 잘 설명할 수 있었다.

Adsorption experiments of 1,1,2-trichloro-2,2,1-trifluoroethane(CFC-113) on silica gel were carried out isothermally and effective overall mass transfer coefficients based on linear driving force model were evaluated. This article focuses on the adsorption capacity and the effective overall mass transfer coefficient, in order to assist the design of fixed adsorption bed. The effects of CFC-113 concentration in air on effective overall mass transfer coefficient at 298k were studied. A linear driving force model was found to provide a good fit to the experimental data obtained from the low concentration ranges.

[References]

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[1] Kuo SL, Hines AL, Sci. Technol. J., 23, 293 (1988)

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

[3] Cicerone RJ, Stolarski RS, Walters S, Science, 185(4157), 1165 (1974)

[4] Molina MJ, Rowland FS, Nature, 249(5460), 810 (1974)

[5] Cho SY, "A Study on Adsorption of CFC-113 onto Activated Carbons," Ph.D. Dissertation Korea University (1994)

[6] Anzelius A, Angew Z, Math. Mech., 6, 291 (1926)

[7] Rosen JB, Ind. Eng. Chem., 46, 1590 (1954)

[8] Schork JM, "Thermal Regeneration of Fixed Adsorption Beds," Ph.D. Dissertation, University of Texas at Austin (1986)

[9] Petrovic LJ, Thodos G, Ind. Eng. Chem. Fundam., 7, 274 (1968)

[10] Scatterfield CN, "Mass Transfer in Heterogeneous Catalysis," MIT Press, Cambridge, Mass (1970)

[11] Reid RC, Praunitz JM, Poling BE, "The Properties of Gases and Liquids," McGraw-Hill, New York (1986)

[12] Fair JR, Lerner BJ, AIChE J., 12, 13 (1956)

[13] Liapis AI, Rippen DWT, Chem. Eng., 33, 593 (1978)