Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/76766
Title: New granular material for hot gas filtration: Use of the "Lapilli"
Authors: Macias-Machin, A.
Socorro, M. Pilar 
Monzón, J. M. 
Macias, M.
UNESCO Clasification: 2391 Química ambiental
Keywords: Gas Filtration
Granular Filter
Modelling
Issue Date: 2006
Journal: Chemical Engineering and Processing: Process Intensification 
Abstract: A study was conducted on a new granular material (Lapilli) for hot gas filtration. We have characterized this material by means of set of instrumental methods involving: surface area (S-BET), scanning electron microscopy (SEM), X-ray diffractometry (XRD), thermogravimetry (TG), differential thermal analysis (DTA) and X-ray fluorescence (XRF). Also, we have used a fixed bed heat exchanger-filter (FHEF) for removing fine dust particles from gases. The influence of a number of variables was examined, including gas velocities, filter height and gas temperatures and the collection efficiency was found to decrease with increasing temperature. Also, a model was proposed to describe the granular filtration of the FHEF using Lapilli as a granular medium. A numerical solution of the filtration equations based on the finite element method was presented.
URI: http://hdl.handle.net/10553/76766
ISSN: 0255-2701
DOI: 10.1016/j.cep.2006.02.009
Source: Chemical Engineering And Processing-Process Intensification [ISSN 0255-2701], v. 45 (9), p. 719-727, (Septiembre 2006)
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