Journal
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
Volume 60, Issue -, Pages 509-519Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jtice.2015.11.020
Keywords
Hydrodynamics; Spouted bed; Conical spouted bed; Waste biomass
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Funding
- Ministry of Economy and Competitiveness of the Spanish Government [CTQ2013-45105-R]
- European ERDF Funds
- Basque Government [IT748-13]
- University of the Basque Country [UFI 11/39 UPV/EHU]
- Administrative Department of Science, Technology and Innovation, COLCIENCIAS (Colombia)
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Spouted beds are an interesting alternative for the treatment of biomass for energy purposes, given that the insertion of a draft-tube allows large-scale handling of solids with a wide range of sizes and diverse properties. The hydrodynamic correlations proposed in the literature have not been validated with particles of low density and shape factor. Therefore, a detailed experimental study has been conducted using five types of biomasses and different combinations of the contactor geometric factors. The correlations in the literature for plain conical spouted beds and for those provided with nonporous and open-sided draft-tubes have been taken as a starting point and, based on the experimental results, they have been modified in order to account for the properties of the solids. Two strategies have been considered in the methodology for modifying the coefficients in the literature correlations. Both are based on the introduction of coefficients one by one based on a hypothesis test. Accordingly, new correlations based on existing ones have been proposed, with the number of coefficients modified being minimum. (C) 2015 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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