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Study on Kinetics and Syngas Production of Sewage Sludge Gasification
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 Title & Authors
Study on Kinetics and Syngas Production of Sewage Sludge Gasification
Roh, Seon Ah;
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 Abstract
Gasification characteristics and gas produced from a sewage sludge char were analyzed by using a thermobalance reactor, which is used for a reaction kinetic analysis by measuring weight change of materials at a desired temperature. Gasification reaction rate increased with increasing temperature and steam partial pressure due to the promotion of gasification reaction. Three models of gas-solid reaction were applied to the reaction kinetics analysis and modified volumetric reaction model was an appropriated model for the steam gasification of the sewage sludge char. Apparent activation energy and pre-exponential factors were evaluated as 155.5 kJ/mol and , respectively. The order of reaction on steam partial pressure was 0.68. Gas analysis was performed at and hydrogen concentration was highest in the gas concentrations, which increased with increasing the steam partial pressure. Hydrogen concentration increased the most and hydrogen concentration in the produced gas was 2-4 times higher than that of carbon monoxide due to the gasification and water gas shift reaction.
 Keywords
Gasification;Sewage sludge;Syngas;Kinetics;Thermobalance;
 Language
Korean
 Cited by
 References
1.
Lee, H. Y., 2008: A Study on the Preparation of Lightweight Materials with Sewage Sludge Ash, Journal of the Korean Institute of Resources Recycling, 17, pp. 30-36.

2.
Ham S, A,, You, M. Y., Kim, D. K., Wang, J. P., 2011: A Study on the RDF fuel mixing with household and organic wastes, Journal of the Korean Institute of Resources Recycling, 20, pp. 52-57.

3.
Roh, S. A., Kim W. H., Yun, J. H., Min, T. J., Kwack, Y. H., Seo, Y. C., 2013: Pyrolysis and gasification-melting of automobile shredder residue, Journal of the Air & Waste Management Association, 63, pp. 1137-1147 crossref(new window)

4.
Yun, J. H., Kim, W. H., Keel S. I., Min, T. J., Roh, S. A., 2007: Coal Gasification with High Temperature Steam, Journal of the Korean Institute of Resources Recycling, 16, pp. 28-33.

5.
Namkung, W., Roh S. A., Guy, C., Kim, S. D., 2004: Kinetics and Combustion Characteristics of Deinking Sludge in a Thermobalance and an Internally Circulating Fluidized Bed, The Canadian Journal of Chemical Engineering, 82, pp. 939-947.

6.
Lee, J. M., Kim, Y. J., Kim, S. D., 1998: Coal-gasification Kinetics Derived from Pyrolysis in a Fluidized-bed Reactor, Energy, 23, pp. 475-488. crossref(new window)

7.
Fermoso, J., Rubiera, F., Chen, D., 2012: Sorption Enhanced Catalytic Steam Gasification Process: a Direct Route from Lignocellulosic Biomass to High Purity Hydrogen, Environmental Science, 5, 6358-6367.