Abstract
The wine industry, an important economic activity in Portugal, particularly in the Alto-Alentejo region, generates large amounts of residues, specially, the pruning of the vines. Various technologies, including energy and agricultural applications, have been considered for the economical valorization of these residues. In this work the results of a study on the potential use of vines pruning biomasses as a source for syngas (gasification gas) production by thermal gasification are presented. The study was conducted in a pilot thermal gasification plant, installed at Portalegre’s Industrial Park. The unit is based on fluidized bed technology, with a processing capacity of 70 kg/h, and operates at 800 °C. The gasification tests were performed continuously for several days, using pellets of mixtures with different mass ratios of vine pruning and wood, in order to optimize the heat value and the composition of produced gas and condensate obtained. A thermodynamic model were developed to allow simulation of the biomass gasification process in a fluidized bed gasifier and to anticipate the composition of the produced gas from the biomass elemental analysis and the prevailing operational conditions. Experimental results fit quite well to the used model. Results show that vines pruning biomasses have interesting features for use as gasification gas raw-material.
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The Authors thanks to U.E. Commission, POCTEC Program, ALTERCEXA Project, for financial support.
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Brito, P.S.D., Oliveira, A.S. & Rodrigues, L.F. Energy Valorization of Solid Vines Pruning by Thermal Gasification in a Pilot Plant. Waste Biomass Valor 5, 181–187 (2014). https://doi.org/10.1007/s12649-013-9246-7
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DOI: https://doi.org/10.1007/s12649-013-9246-7