Abstract
An activated carbon monolith synthesized from a phenolic resin precursor provides capacity and kinetic properties which compare most favourably with the same mass of its granular counterpart. Experimental data have been obtained using a dynamic, flow apparatus. The comparative performances are readily explained by an analysis of internal and external mass transfer coefficients. The effect of axial dispersion is neglected. Internal mass transfer coefficients are based on the linear driving force assumption, being approximated for the monolith by a geometric transformation from the square channel to a hollow cylinder impervious to mass at its outer radius. The monolith is predicted to have a pressure drop which is less than 6% of that of its equivalent granular system.
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References
Botas Echevarria, J.A., S. Perera, and B.D. Crittenden, “Monolithic Adsorbents:A Comparison with Their Particulate Counterparts” in Proc. 4 th European Congress of Chemical Engineering, Granada, Topic 7 abstracts, 2003.
Crittenden, B.D. and S., Ben-Shebal, “Effect of Thermal Gradients on the Adsorptive Drying of Solvents in Packed Beds of Zeolite” IChemE Symposium Series, 129, 1147–1154 (1992).
Crittenden, B.D., S., Perera, L.Y. Lee, and A Gómez Crespo, “Monolithic Adsorbents in Environmental Protection” in Proc 9th Int. Summer School on Chemical Engineering, Ts. Sapunzhiev (Ed.), pp. 246–267, Bulgarian Academy of Sciences, Sofia,2001.
Ergun, S., “Fluid Flow through Packed Columns” Chem. Eng. Progress, 48(2), 89–94 (1952).
Fuertes, A.B., G., Marbán, and D.M. Nevskaia, “Adsorption of Volatile Organic Compounds by Means of Activated Carbon Fibre Monoliths” Carbon, 41, 87–96 (2003).
Gadkaree, K.P., “Carbon Honeycomb Structures for Adsorption Applications” Carbon, 36, 981–989 (1998).
Glueckauf, E., “Theory of Chromatography, Part 10:Formulae for Diffusion into Spheres and their Application to Chromatography” Trans. Faraday Society, 51, 1540–1551 (1955).
7 Glueckauf, E. and J.I., Coates, “Theory of Chromatography, Part IV:The Influence of Incomplete Equilibrium on the Front Boundary of Chromatograms and on the Effectiveness of Separation” J. Chem. Soc., 1315–1321 (1947).
Golay, M.J.E., “Theory of Chromatography in Open and Coated Tubular Columns with Round and Rectangular Cross-sections” Gas Chromatography, D.H. Desty (Ed.), pp. 36–55, Academic Press, New York,1958.
Golay, M.J.E., “The Height Equivalent to a Theoretical Plate of Retentionless Rectangular Tubes” J. Chromatography A, 216, 1–8 (1981).
Hawthorn, R.D., “Afterburner Catalysts—Effects of Heat and Mass Transfer between Gas and Catalyst Surface” AIChE Symposium Series, 70, 428–438 (1974).
Janssen, L.P.B.M. and M.M.C.G. Warmoeskerken, Transport Phenomena Data Companion, Edward Arnold, London, 1987.
Liaw, C.H., J.S.P., Wang, R.A. Greenkorn, and K.C. Chao, “Kinetics of Fixed Bed Adsorption:A New Solution” AIChEJ, 25, 376–381 (1979).
Patton, A., B.D., Crittenden, and S.P. Perera, “Use of the Linear Driving Force Approximation to Guide the Design of Monolithic Adsorbents” TransIChemE, 82A, in press, 2004.
Ranz, W.E. and W.E., Marshall, “Evaporation from Drops, Part II” Chem. Eng. Progress, 48(4), 173–180 (1952).
Ruthven, D.M., Principles of Adsorption and Adsorption Phenomena, p. 261, John Wiley & Sons, New York,1984.
Ruthven, D. M. and C., Thaeron, “Performance of a Parallel Passage Adsorbent Contactor” Gas Sep. and Purif., 10, 63–73 (1996).
Shah, D.B., S.P., Perera, and B.D. Crittenden, “Adsorption Dynamics in a Monolithic Adsorber” Fundam. of Adsorption, M.D. LeVan (Ed.), pp. 813–820, Kluwer Academic Publishers, Boston,1996.
Spangler, G.E., “Height Equivalent to a Theoretical Plate Theory for Rectangular GC Columns” Anal. Chem., 70, 4805–4816 (1998).
Tennison, S.R., Phenolic Resin-Derived Activated Carbons, Applied Catalysis A, 173, 289–311 (1998).
Tennison, S.R., A. Blackburn, A. Rawlinson, R. Place, B.D. Crittenden, and S. Fair, “Electrically Regenerable Monolithic Adsorption System for the Recovery and Recycle of Solvent Vapours” in Proc. AIChE Spring Meeting, Manuscript 109e (2001).
Valdés-Solís, T., M.J.G. Linders, F. Kapteijn, G. Marbán, and A.B. Fuertes, “Adsorption Performance of Carbon-Ceramic Monoliths at Low Concentration VOC” Proc. of Carbon Conference, Oviedo, p. 102, 2003a.
Valdés-Solís, T., M.J.G. Linders, F. Kapteijn, G. Marbán, and A.B. Fuertes, “Modelling of the Breakthrough Performance of Carbon-Ceramic Monoliths in Gas Adsorption,” Proc. of Carbon Conference, Oviedo, p. 166(2003b).
Yates, M., J., Blanco, P. Avila, and M.P. Martin, “Honeycomb Monoliths of Activated Carbon for Effluent Gas Purification” Microporous and Mesoporous Materials, 37, 201–208 (2000).
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Crittenden, B., Patton, A., Jouin, C. et al. Carbon Monoliths: A Comparison with Granular Materials. Adsorption 11 (Suppl 1), 537–541 (2005). https://doi.org/10.1007/s10450-005-5981-9
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DOI: https://doi.org/10.1007/s10450-005-5981-9