Adsorption of Sulfur Dioxide on Activated Carbon from Oil-Palm Waste
Publication: Journal of Environmental Engineering
Volume 127, Issue 10
Abstract
Adsorption of sulfur dioxide (SO2) onto activated carbons prepared from oil-palm shells was investigated in this paper. Experimental results showed that the adsorption temperature and SO2 concentration significantly determined the amount of SO2 adsorbed and the equilibrium time. However, sample particle size had minimum effect on the equilibrium time. For a fixed SO2 concentration, the adsorption rate and adsorption kinetic parameters (activation energy and frequency factor) were obtained. A linearly proportional relationship between the Brunauer-Emmett-Teller surface area and the adsorptive capacity of the activated carbon from oil-palm shells was observed. An intraparticle Knudsen diffusion model based on a Freundlich isotherm was developed for predicting the amount of SO2 adsorbed and the SO2 concentration profile within the particle. Based on the estimated isotherm parameters and diffusion coefficients by experimental data fitting, this model could predict the amount adsorbed under different concentrations very well. However, this model was unsuitable for the activated carbon prepared from oil-palm shells by chemical activation because of the occurrence of chemisorption, which was related to the nature of the sample surface functional groups.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Cheng, A., and Harriott, P. ( 1986). “Kinetics of oxidation and chemisorption of oxygen for porous carbons with high surface area.” Carbon, 24(1), 143–150.
2.
Cheremisinoff, N. P., and Cheremisinoff, P. N. ( 1993). Carbon adsorption for pollution control, Prentice-Hall, Englewood Cliffs, N.J., 95–102.
3.
Daley, M. A., et al. ( 1997). “Adsorption of SO2 onto oxidized and heat-treated activated carbon fibers (ACFs).” Carbon, 35(3), 411–417.
4.
Davini, P. ( 1991). “Investigation on the adsorption and desorption of sulphur dioxide on active carbon in the temperature range between 130°C and 170°C.” Carbon, 29(3), 321–327.
5.
Gail, E., and Kast, W. ( 1990). “Kinetics of sulphur dioxide sorption by single pellets of activated carbon.” Chemical Engrg. Sci., 45(2), 403–409.
6.
Gray, P. G. ( 1993). “A fundamental study on the removal of air pollutants (sulfur dioxide, nitrogen dioxide and carbon dioxide) by adsorption on activated carbon.” Gas Separation & Purification, 7, 213–224.
7.
Guo, J., and Lua, A. C. ( 1999). “Characterization of chars pyrolyzed from oil palm stones for the preparation of activated carbons.” J. Anal. Appl. Pyrolysis, 46(2), 113–125.
8.
Guo, J., and Lua, A. C. ( 1999). “Textual and chemical characterisations of activated carbon prepared from oil-palm stone with H2SO4 and KOH impregnation.” Microporous and Mesoporous Mat., 32(1), 111–117.
9.
Hines, A. L., and Maddox, R. N. ( 1985). Mass transfer: Fundamentals and applications, Prentice-Hall, Englewood Cliffs, N.J., 139.
10.
Knoblauch, K., Juntgen, H., and Peters, W. ( 1977). “The Bergbau-Forschung process for the desulfurization of flue gases.” Proc., 4th Int. Clean Air Congr., Tokyo Institute of Technology, Tokyo, 722–726.
11.
Lu, G. Q., and Do, D. D. ( 1993). “Retention of sulfur dioxide as sulfuric acid by activated coal reject char.” Separation Technol., 3, 106–110.
12.
Lydersen, A. L. ( 1983). Mass transfer in engineering practice, Wiley, New York, 8.
13.
Ruthven, D. M. ( 1984). Principles of adsorption and adsorption processes, Wiley, New York, 137.
14.
Satterfield, C. N. ( 1970). Mass transfer on heterogeneous catalyst, MIT Press, Cambridge, 124.
15.
Suzuki, M. ( 1990). Adsorption engineering, Elsevier Science, Amsterdam, 70.
16.
Tien, C. ( 1994). Adsorption calculations and modelling, Butterworth-Heinemann, Boston, 78.
17.
Yang, R. T. ( 1987). Gas separation by adsorption processes, Butterworths, Boston, 26.
18.
Varma, H. B. ( 1981). Air pollution control equipment, Springer, New York, 318.
19.
Villadsen, J., and Michelsen, M. L. ( 1978). Solution of differential equation models by polynomial approximation, Prentice-Hall, Englewood Cliffs, N.J., 325.
Information & Authors
Information
Published In
History
Received: Jul 18, 2000
Published online: Oct 1, 2001
Published in print: Oct 2001
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.