Steam gasification of poultry litter biochar for bio-syngas production
| Autor: | Christian Manera, Janaína Junges, Patrícia Poletto, Danielle Restelatto, Aline Dettmer, Daniele Perondi, Jayna Pessuto Silva, Marcelo Godinho, Gabriela Carvalho Collazzo, Antônio C. F. Vilela |
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| Rok vydání: | 2017 |
| Předmět: |
Environmental Engineering
Waste management 020209 energy General Chemical Engineering 02 engineering and technology Direct reduced iron engineering.material Pulp and paper industry Methane Reaction rate chemistry.chemical_compound chemistry Biochar 0202 electrical engineering electronic engineering information engineering engineering Environmental Chemistry Environmental science Fertilizer Safety Risk Reliability and Quality Pyrolysis Poultry litter Syngas |
| Zdroj: | Process Safety and Environmental Protection. 109:478-488 |
| ISSN: | 0957-5820 |
| DOI: | 10.1016/j.psep.2017.04.029 |
| Popis: | Poultry litter, the major waste generated by poultry farming, has its main use in soil as a fertilizer. However, the uncontrolled use of poultry litter for this purpose can result in environmental impacts such as the emission of methane, a greenhouse gas. Therefore, the thermochemical conversion of this waste can be a solution to this problem, since its products can be converted into useful energy. In this work, pyrolysis experiments were conducted in a tubular reactor, using N 2 atmosphere and a final temperature of 800 °C. Furthermore, the steam gasification of poultry litter biochar obtained in the pyrolysis experiments was investigated in a fixed-bed tubular reactor at different temperatures (800, 850 and 900 °C). The maximum hydrogen (H 2 ) reaction rates were observed in the first 15 min of the reaction, and there was a change in the maximum reaction rate towards lower reaction times with increased temperature. The elevated H 2 yield may be associated with metals present in the biochar, especially potassium (K). Bio-syngas (H 2 + CO) obtained from steam gasification of poultry litter biochar presented high potential to reduce iron ore by indirect reduction (IR) in blast furnaces (BF), or in direct reduced iron (DRI) processes. |
| Databáze: | OpenAIRE |
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