Adsorption of SO2 on alumina
-
P. Fellner
,
J. Jurišová
Abstract
The adsorption of SO2 on alumina used in the aluminium industry, the so-called smelter-grade alumina, was studied in the temperature range 15–120°C. It was found that at temperatures lower than 40°C, sulphur dioxide was bonded to alumina reversibly by physical forces, and the adsorption could be described satisfactorily by the Langmuir adsorption isotherm. The heat of adsorption was estimated to be −33 kJ mol−1. At temperatures ranging from 80°C to 120°C, which prevail in dry scrubbers in the aluminium industry, the heat of adsorption was determined to be −56 kJ mol−1. When SO2 was adsorbed at temperatures higher than 80°C, about 30 % of the SO2 could not be desorbed even if the samples were heated up to 250°C. In the presence of SO2 and oxygen, the formation of sulphate was observed at temperatures above 90°C.
[1] Thonstad, J., Utne, I., Paulsen, K. A., and Svendsen, G., Sulphurous Gases in Aluminium Electrolysis, Proc. 6th Australasian Aluminium Smelting Workshop, Queenstown, New Zealand, 1998. P. 369–380. Suche in Google Scholar
[2] Thonstad, J., Fellner, P., Haarberg, G. M., Híveš, J., Kvande, H., and Sterten, Å., Aluminium Electrolysis, p. 315–327. Aluminium-Verlag, Düsseldorf, 2001. Suche in Google Scholar
[3] Cochran, C. N., Sleppy, W. C., and Frank, W. B., J. Metals 22, 54 (1970). 10.1007/BF03355663Suche in Google Scholar
[4] Gillespie, A. R., Hyland, M. M., and Metson, J. B., J. Metals 51, 30 (1999). 10.1007/s11837-999-0037-3Suche in Google Scholar
[5] Hyland, M. M., Metson, J. B., Haverkamp, R. G., and Welch, B. J., Light Metals 1992, 1323 (1992). Suche in Google Scholar
[6] Datta, A., Cavell, R. G., Tower, R. W., and George, Z. M., J. Phys. Chem. 89, 443 (1985). http://dx.doi.org/10.1021/j100249a01410.1021/j100249a014Suche in Google Scholar
[7] Datta, A. and Cavell, R. G., J. Phys. Chem. 89, 454 (1985). http://dx.doi.org/10.1021/j100249a01610.1021/j100249a016Suche in Google Scholar
[8] Chang, C. C., J. Catal. 53, 374 (1978). http://dx.doi.org/10.1016/0021-9517(78)90109-410.1016/0021-9517(78)90109-4Suche in Google Scholar
[9] Lamb, W. D., J. Metals 31, 32 (1979). 10.1007/BF03354509Suche in Google Scholar
[10] Defay, R., Prigogine, I., Bellemans, A., and Everett, D. H., Surface Tension and Adsorption, p. 50. Longmans, London, 1966. Suche in Google Scholar
[11] Glass, R. W. and Ross, R. A., Can. J. Chem. 50, 2537 (1972). http://dx.doi.org/10.1139/v72-40810.1139/v72-408Suche in Google Scholar
© 2006 Institute of Chemistry, Slovak Academy of Sciences
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Artikel in diesem Heft
- Influence of medium on the kinetics of oxidation of iron(II) ion with t-butyl hydroperoxide
- Synthesis of new thiazolo[2,3-b]pyrimidine derivatives of pharmaceutical interest
- Enthalpic analysis of the CaTiSiO5 system
- Kinetic, spectrophotometric determination of nanogram levels of manganese(II) using catalytic azo dye—potassium periodate—1,10-phenanthroline system
- Application of a ternary complex of tungsten(VI) with 4-nitrocatechol and thiazolyl blue for extraction-spectrophotometric determination of tungsten
- Determination of risperidone at picogram level in human urine by luminol—H2O2 chemiluminescence
- Electrochemical dissolution of chalcopyrite studied by voltammetry of immobilized microparticles
- Colon tissue concentrations of copper, iron, selenium, and zinc in colorectal carcinoma patients
- Structure of tetrakis(pyridinioacetate) neodymium(III) tetrahydrate perchlorate
- Thermally stable oligomer—Metal complexes based on oligo-ortho-aminophenol and oligophenylazomethinephenol
- Adsorption of SO2 on alumina
- One-pot, three-component synthesis of secondary amines and trisubstituted hydrazines from ketones
- Synthesis of α,α′-bis(R-benzylidene)cycloalkanones catalyzed by potassium hydrogen sulfate under solvent-free conditions
- Electrical conductivity of the molten KF—K2TaF7 system
- New substituted mono-and bis(imidazolyl)pyridines and their application in nitroaldolisation reaction
