# 비극성용매 내의 벤젠 물질전달특성

• 최성우 (계명대학교 환경과학과) ;
• 김혜진 (계명대학교 환경과학과) ;
• 박문기 (경산대학교 환경과학과)
• Published : 2002.06.01
• 43 9

#### Abstract

The absorption of benzene in nonpolar solution was studied in a laboratory-scale of bubble column varying of gas flow rates and gas-to-liquid ratios. A bubble column had a 0.8∼l$\times$10$\^$-3/ m$^3$ total volume (height 1500 mm, diameter 50 mm). Solution analysis was performed by GC-FID and GC-MSD. The objectives of this research were to select the best absorption fluid and to evaluate the mass transfer characteristics under specific conditions of each absorption. The results of this research were follow as: First, the heat transfer fluid is more efficient than the other nonpolar solution in removing VOC. Second, The benzene removal efficiency improved according to an increasing rate of gas flow. Also, volumetric mass transfer rate of column can be enhanced by increasing gas flow rate. Finally, the relation of gas flow rates, liquid amount, and volumetric mass transfer coefficient was obtained as follows. K$\_$y/a: 0.5906(V$\_$g//L)$\^$0.7611/ The following correlation of mass transfer coefficient and efficiency was proposed. v= 0.06078 K$\_$y/a$\^$0.2444/.

#### Keywords

VOC;Benzene;Mass transfer coefficient

#### References

1. Gaddis, E.S., 1999, Mass transfer in gasliquid contactors, Chemical Engineering Processing, 38, 503-510. https://doi.org/10.1016/S0255-2701(99)00046-X
2. Clausse, B. et al., 1998, Adsorption of Chlorinated Volatile Organic Compounds on Hydrophobic Faujasite Correlation between the Thermodynamic and Kinetic Properties and the Prediction of Air Cleaning, Microporous and Mesoporous Materials, 25, 169-177. https://doi.org/10.1016/S1387-1811(98)00202-9
3. Higbie, R., 1935, The Rate of Absorption of a Pure Gas into a Still Liquid during Periods of Exposure, Trans. AIChE, 31, 365-389.
4. Wang, J., H. Shejiao, F. W. Z. Yu, and J. Yong, 1997, An Axial Dispersion Model for Gas- Liquid Reactors Based on the Penetration Theory, Chemical Engineering and Processing, 36, 291-299. https://doi.org/10.1016/S0255-2701(97)00005-6
5. Dellinger, B. et al., 1990, Development of Thermal Stability Ranking of Hazardous Organic Compound Incinerability, Environmental Science and Technology, 24.
6. Lordgooei, M., K. R. Carmichael, T. W. Kelly, M. J. Rood, and S. M. Larson, 1996, Activated Carbon Cloth Adsorption-Cryogenic System to Recover Toxic Volatile Organic Compounds, Gas. Sep. Purif., 10(2), 123-130. https://doi.org/10.1016/0950-4214(96)00008-4
7. Guisnet, M. et al., 1999, Catalytic Oxidation of Volatile Organic Compounds 1. Oxidation of Xylene over a 0.2 wt% Pd/HFAU(17) catalyst, Applied Catalysis B: Environmental, 20, 1-13. https://doi.org/10.1016/S0926-3373(98)00087-3
8. Billerbeck, G.M., J.S. Condoret, and C. Fonade, 1999, Study of Mass Transfer in a Novel Gas-Liquid Contractor: the Aero-Ejector, Chemical Engineering Journal, 72, 185-193. https://doi.org/10.1016/S1385-8947(98)00132-6
9. Sohn, W. I., D. H. Ryu, S. J. Oh, and J. K. Koo, 2000, A Study on the Development of Composite Membranes for the Separation of Organic Vapors, Journal of Membrane Science, 175, 163-170. https://doi.org/10.1016/S0376-7388(00)00417-8
10. Mohseni, M. and D. G. Allen, 2000, Biofiltration of Mixtures of Hydrophilic and Hydrophobic Volatile Organic Compounds, Chemical Engineering Science, 55, 1545-1558. https://doi.org/10.1016/S0009-2509(99)00420-0