Valorização energética de espécies suprimidas na implantação de um empreendimento eólico
Given the growing wind potential, especially in the Northeast region and in state of Rio Grande do Norte (RN), there is a considerable growth of plant suppression, due to the installation of wind complexes. The present work seeks to present alternatives of energy recovery of species suppressed du...
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| Formato: | Dissertação |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/47147 |
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| Resumo: | Given the growing wind potential, especially in the Northeast region and in state of Rio
Grande do Norte (RN), there is a considerable growth of plant suppression, due to the
installation of wind complexes. The present work seeks to present alternatives of energy
recovery of species suppressed during the installation of a wind farm in the region of Mato
Grande (RN), through energy characterization and rapid analytical pyrolysis. The
quantitative biomass data that underpinned the work were provided by an environmental
consulting company and for the energy characterization of the residues produced during
the suppression of the native species of the Caatinga were performed the proximate
analysis, calorific value, apparent density, thermogravimetric analysis and composition of
cellulose, hemicellulose and lignin. Fast analytical pyrolysis was developed at 500 °C in an
HP-R 5200 pyrolysis from CDS Analytical coupled to a gas chromatograph to identify
pyrolysis products. The calorific power results of pereiro, imburana and catingueira were
18.39 MJ/kg-1, 17.99 MJ/kg-1 and 17.47 MJ/kg-1, respectively, indicating its energy
potential. The pyrolysis results prove the presence of several oxygenated compounds
characteristic of the decomposition of lignocellulosic materials, such as phenols, ketone
and light oxygenated compounds, containing between 1-4 carbon atoms, which comprise
carboxylic acids. The materials have a high calorific value and can be applied for direct
combustion, such as in the manufacture of briquettes and pellets. Pyrolysis results also
reveal the potential to obtain renewable chemicals as an attractive product for several areas
of industry, such as the production of paints, phenolic resins and pesticides. Futhermore by
presenting in its composition a considerable amount of oxygenated compounds, such as
ketones and phenols, it reveals its potential for the use of pyrolysis products in the chemical
industry, as well as direct application of these biomasses in thermochemical processes of
energy conversion. |
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