Article: Removal of sulphur dioxide from exhaust gases using hazardous and structured packing Journal: International Journal of Environment and Pollution (IJEP) 2005 Vol.23 No.1 pp.81 - 91 Abstract: The expulsion of sulphur dioxide from hydrocarbon combustion can reach levels higher than accepted by the normative. In order to evaluate the efficiency of separation of SO<SUB align="right"><SMALL>2</SMALL></SUB> by different packing systems constructed with materials such as metals or ceramics, the mass transfer and hydrodynamic parameters were evaluated. With the use of mass transfer model, the ININ packing showed higher separation efficiency with respect to Sulzer BX, Mellapak, and Raschig packing: 33.74%, 45.43% and 61.32%, respectively. These results were because the ININ packing has lower corrugation angles and narrower corrugated side than the others. The present work quantifies the improvements in mass transfer, like mass transfer volumetric coefficient and the height of the transfer global units in gas and liquid phase per each packing, using absorption columns with different gas flow managed: 5,000, 4,000 and 3,000 Nm³/h. The hydrodynamic model was used to design the column, as well as to determine the diameter or the cross area of the column per each packing. It is discussed that the ININ packing was one of the best of those tested because it has the highest separation efficiency with the least height of the transfer global units. Inderscience Publishers - linking academia, business and industry through research

Title: Removal of sulphur dioxide from exhaust gases using hazardous and structured packing

Authors: Rosa H. Chavez, Javier de J. Guadarrama, Nuria Segovia

Addresses: Gerencia de Ciencias Ambientales Instituto Nacional de Investigaciones Nucleares, Km. 36.5 Carretera Mexico Toluca Municipio de Ocoyoacac, Salazar, 52045 Estado de Mexico, Mexico. ' Instituto Tecnologico de Toluca, Metepec 52140, Estado de Mexico, Mexico. ' Instituto de Geofisica, UNAM, Ciudad Universitaria, Mexico D.F. 04510, Mexico

Abstract: The expulsion of sulphur dioxide from hydrocarbon combustion can reach levels higher than accepted by the normative. In order to evaluate the efficiency of separation of SO₂ by different packing systems constructed with materials such as metals or ceramics, the mass transfer and hydrodynamic parameters were evaluated. With the use of mass transfer model, the ININ packing showed higher separation efficiency with respect to Sulzer BX, Mellapak, and Raschig packing: 33.74%, 45.43% and 61.32%, respectively. These results were because the ININ packing has lower corrugation angles and narrower corrugated side than the others. The present work quantifies the improvements in mass transfer, like mass transfer volumetric coefficient and the height of the transfer global units in gas and liquid phase per each packing, using absorption columns with different gas flow managed: 5,000, 4,000 and 3,000 Nm³/h. The hydrodynamic model was used to design the column, as well as to determine the diameter or the cross area of the column per each packing. It is discussed that the ININ packing was one of the best of those tested because it has the highest separation efficiency with the least height of the transfer global units.

Keywords: mass transfer; structured packing; absorption; sulphur dioxide removal; exhaust gases; hydrocarbon combustion; hydrodynamics; hydrodynamic modelling.

DOI: 10.1504/IJEP.2005.006397

International Journal of Environment and Pollution, 2005 Vol.23 No.1, pp.81 - 91

Published online: 03 Mar 2005 *

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Title: Removal of sulphur dioxide from exhaust gases using hazardous and structured packing

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