Gasification of waste from coffee and eucalyptus production as an alternative source of bioenergy in Brazil
| Autor: | Emanuele Graciosa Pereira, Jadir Nogueira da Silva, Jofran Luiz de Oliveira, Maria da Conceição Trindade Bezerra e Oliveira, Marcio Arêdes Martins |
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| Rok vydání: | 2018 |
| Předmět: |
Wood gas generator
Renewable Energy Sustainability and the Environment 020209 energy Energy Engineering and Power Technology 02 engineering and technology 010501 environmental sciences Pulp and paper industry 01 natural sciences Husk Methane chemistry.chemical_compound chemistry Fuel gas Bioenergy Carbon dioxide 0202 electrical engineering electronic engineering information engineering Environmental science Heat of combustion 0105 earth and related environmental sciences Carbon monoxide |
| Zdroj: | Sustainable Energy Technologies and Assessments. 27:159-166 |
| ISSN: | 2213-1388 |
| Popis: | This paper presents results of a study about the gasification process of waste from eucalyptus production, as wood chips, and wastes from coffee production, as coffee husks and coffee wood. These wastes were subjected to gasification in an open-source commercial small-scale downdraft gasifier, using air as the gasifying agent. The fuel gas composition was monitored in a fuel gas analyzer to determine the volume concentration of CO, CO2, H2 and CH4, and higher heating value (HHV). The coffee husk fuel gas presented the average HHV of 7.76 ± 1.27 MJ Nm−3 containing predominantly methane, carbon monoxide and carbon dioxide. The fuel gas from coffee wood gasification reached the lowest HHV (5.45 ± 0.42 MJ Nm−3), containing predominantly carbon monoxide (14.03 ± 0.72%). The gasification of eucalyptus chips presented average HHV of 6.81 ± 0.34 MJ Nm−3, with predominance of carbon monoxide (20.24 ± 0.93%), showing a regular composition during the experimental trials, and superior operational performance among the three biomasses investigated. This study demonstrates that gasification is an attractive alternative for waste-to-energy conversion and the energy upgrade can be used for on farm sustainable activities. |
| Databáze: | OpenAIRE |
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