Abstract:
Changes in the apparent surface area that are produced by carbonisation of a subbituminous coal at different temperatures are followed by adsorption of CO2 at 273 K and 298 K, the Dubinin—Radushkevich equation being used. Activated diffusion effects are found for the char samples prepared at 973 and 1173 K. A maximum in the apparent surface area is found at 1073 K. Copyright © 1988 Society of Chemical Industry
Registro:
Documento: |
Artículo
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Título: | Study of subbituminous coal chars: Effect of heat treatment temperature on their structural characteristics |
Autor: | Gutierrez, M.D.C.; Cukierman, A.L.; Lemcoff, N.O. |
Filiación: | PINMATE, CONICET‐UBA, Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Buenos Aires, 1428, Argentina
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Palabras clave: | adsorption; carbon dioxide; char; Coal; surface area; CARBON DIOXIDE - Adsorption; CHARCOAL; COAL - Heat Treatment; ACTIVATED DIFFUSION EFFECTS; DUBININ-RADUSHKEVICH EQUATION; SUBBITUMINOUS COAL; SURFACE AREA; COAL CARBONIZATION |
Año: | 1988
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Volumen: | 41
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Número: | 2
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Página de inicio: | 85
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Página de fin: | 93
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DOI: |
http://dx.doi.org/10.1002/jctb.280410202 |
Título revista: | Journal of Chemical Technology & Biotechnology
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Título revista abreviado: | J. Chem. Technol. Biotechnol.
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ISSN: | 02682575
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02682575_v41_n2_p85_Gutierrez |
Referencias:
- Wen, C.Y., Dutta, S., (1979) Coal Conversion Technology, pp. 57-63. , Wen, C. Y., Stanley Lee, E., Addison–Wesley Publishing Company, Massachusetts, USA, 2nd edn
- Walker, P.L., Geller, J., Change in surface area of anthracite on heat treatment (1956) Nature, 178, p. 1001
- Marsh, H., The determination of surface areas of coals—Some physicochemical considerations (1965) Fuel, 44, pp. 253-268
- Gan, H., Nandi, S.P., Walker, P.L., Jr., Nature of the porosity in American coals (1972) Fuel, 51, pp. 272-277
- Nandi, S.P., Walker, P.L., Jr., The diffusion of nitrogen and carbon dioxide from coals of various rank (1964) Fuel, 43, pp. 385-393
- Walker, P.L., Jr., Microporosity in coal: its characterization and its implications for coal utilization (1981) Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, pp. 65-81. , A 300
- Toda, Y., Hatami, M., Toyoda, S., Yoshida, Y., Honda, H., Micropore structure of coal (1971) Fuel, 50, pp. 187-200
- Gregg, S.J., Sing, K.S.W., (1982) Adsorption, Surface area and Porosity, pp. 195-247. , Academic Press Inc., London, 2nd edn
- (1928) International Critical Tables, 3, pp. 235-236. , McGraw–Hill, New York
- Marsh, H., Siemieniewska, T., Adsorption of carbon dioxide on carbonized anthracite. Interpretation by Dubinin theory (1967) Fuel, 46, pp. 441-457
- López Peinado, A., Rivera‐Utrilla, J., López González, J.D., Mata Arjona, A., Porous texture characterization of coals and chars (1985) Adsorption Science & Technology, 2, pp. 31-38
- Essenghigh, R.H., Howard, J.B., Toward a unified combustion theory. The pyrolysis and combustion mechanism of carbonaceous solids (1966) Industrial & Engineering Chemistry, 58, pp. 14-23
- Chiche, P., Durif, S., Pregérmain, S., Development of the internal surface area of coals during carbonization (1965) Fuel, 44, pp. 5-28
Citas:
---------- APA ----------
Gutierrez, M.D.C., Cukierman, A.L. & Lemcoff, N.O.
(1988)
. Study of subbituminous coal chars: Effect of heat treatment temperature on their structural characteristics. Journal of Chemical Technology & Biotechnology, 41(2), 85-93.
http://dx.doi.org/10.1002/jctb.280410202---------- CHICAGO ----------
Gutierrez, M.D.C., Cukierman, A.L., Lemcoff, N.O.
"Study of subbituminous coal chars: Effect of heat treatment temperature on their structural characteristics"
. Journal of Chemical Technology & Biotechnology 41, no. 2
(1988) : 85-93.
http://dx.doi.org/10.1002/jctb.280410202---------- MLA ----------
Gutierrez, M.D.C., Cukierman, A.L., Lemcoff, N.O.
"Study of subbituminous coal chars: Effect of heat treatment temperature on their structural characteristics"
. Journal of Chemical Technology & Biotechnology, vol. 41, no. 2, 1988, pp. 85-93.
http://dx.doi.org/10.1002/jctb.280410202---------- VANCOUVER ----------
Gutierrez, M.D.C., Cukierman, A.L., Lemcoff, N.O. Study of subbituminous coal chars: Effect of heat treatment temperature on their structural characteristics. J. Chem. Technol. Biotechnol. 1988;41(2):85-93.
http://dx.doi.org/10.1002/jctb.280410202