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http://hdl.handle.net/10773/24305
Title: | Particulate emissions from the co-combustion of forest biomass and sewage sludge in a bubbling fluidised bed reactor |
Author: | Calvo, A. I. Tarelho, L. A. C. Teixeira, E. R. Alves, C. Nunes, T. Duarte, M. Coz, E. Custodio, D. Castro, A. Artiñano, B. Fraile, R. |
Keywords: | Aerosol Biomass Co-combustion Fluidised bed Sewage sludge |
Issue Date: | 2013 |
Publisher: | Elsevier |
Abstract: | In the present study, particulate emissions from the co-combustion of forest biomass residues with sewage sludge in a pilot-scale bubbling fluidised bed combustor were characterised. The combustion flue gas was exhausted to the atmosphere after passing through a cyclone separator. Physical-chemical characteristics of the particles were studied: i) morphology and aerosol size, surface and volume distributions before the cyclone and ii) chemical composition (carbonates, water soluble-inorganic ions, organic and elemental carbon) before and after the cyclone. Chemical composition data were used to calculate aerosol density and refractive index. Aerosols showed a unimodal size distribution with a geometric mean diameter of 2.25 ± 0.02 μm and a geometric standard deviation of 1.27 ± 0.01. The surface and volume mean diameters were 2.64 ± 0.02 μm and 2.91 ± 0.05 μm, respectively. Water-soluble inorganic ions were predominant in the fine particle fraction (PM2.5). The filters were loaded of crystallised mineral particles. The analysis revealed a dominance of calcium carbonate/oxide and halide (NaCl or KCl), sulphate and aluminosilicate nanocrystals forming larger mixed aggregates. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/24305 |
DOI: | 10.1016/j.fuproc.2013.03.021 |
ISSN: | 0378-3820 |
Appears in Collections: | CESAM - Artigos DAO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Calvo et al. - 2013 - Particulate emissions from the co-combustion of fo.pdf | 1.18 MB | Adobe PDF |
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