Biomass gasification under external heating and using steam as a gasifying agent: Numerical analysis
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| Format: | Artículo científico |
| Sprache: | en |
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Universidad de Antioquia
2021
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| _version_ | 1876488201673113600 |
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| author | Yuhan Arley Lenis-Rodas |
| author_facet | Yuhan Arley Lenis-Rodas |
| contents | Biomass gasification under external heating and using steam as a gasifying agent: Numerical analysis Yuhan Arley Lenis-Rodas Gilles Maag Celso Eduardo Lins de Oliveira Lesme Antonio Corredor Marco Enrique Sanjuán Ingeniería syngas hydrogen biomass energy Renewable resources Gasification using an external heat source is considered as a high potential alternative to take high moisture content biomass into a fuel gas. This gas could reach energy densities close to 12 MJ/Nm3, which allows its use as a fuel in conventional thermal machines or as a precursor for higher fuel gases. Given this, in the present work allothermal gasification for a 50 %w.t. moisture content biomass was analyzed computationally aiming to yield a high hydrogen content syngas. Using a power supply of 8 kW, the dry tar-free gas yield was around 51.9 mol/kg of biomass with an average concentration of 45.7% CO, 44.8% H2, 4.8% CH4 and 4.6% CO2. A peak temperature of 1,070 K and 33% for chemical efficiency were achieved. In spite of using homogeneous heating along the reactor wall, the process temperature decreases near the gas outlet. This is due to solid material depletion decreasing the process thermal inertia. During the final stages, H2 and CO concentration also record an increase due to the endothermic carbon gasification as well as water-gas shift and methanation reactions. 2021 artículo científico 0120-6230 https://www.redalyc.org/articulo.oa?id=43067842007 https://www.redalyc.org/journal/430/43067842007/ https://www.redalyc.org/journal/430/43067842007/html/ https://www.redalyc.org/journal/430/43067842007/43067842007.epub https://www.redalyc.org/journal/430/43067842007/movil 10.17533/udea.redin.20200475 en http://www.redalyc.org/revista.oa?id=430 Revista Facultad de Ingeniería Universidad de Antioquia application/pdf Universidad de Antioquia Revista Facultad de Ingeniería Universidad de Antioquia (Colombia) Num.98 |
| format | Artículo científico |
| id | redalyc_43067842007 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Universidad de Antioquia |
| spellingShingle | Biomass gasification under external heating and using steam as a gasifying agent: Numerical analysis Yuhan Arley Lenis-Rodas Ingeniería syngas hydrogen biomass energy Renewable resources Biomass gasification under external heating and using steam as a gasifying agent: Numerical analysis Yuhan Arley Lenis-Rodas Gilles Maag Celso Eduardo Lins de Oliveira Lesme Antonio Corredor Marco Enrique Sanjuán Ingeniería syngas hydrogen biomass energy Renewable resources Gasification using an external heat source is considered as a high potential alternative to take high moisture content biomass into a fuel gas. This gas could reach energy densities close to 12 MJ/Nm3, which allows its use as a fuel in conventional thermal machines or as a precursor for higher fuel gases. Given this, in the present work allothermal gasification for a 50 %w.t. moisture content biomass was analyzed computationally aiming to yield a high hydrogen content syngas. Using a power supply of 8 kW, the dry tar-free gas yield was around 51.9 mol/kg of biomass with an average concentration of 45.7% CO, 44.8% H2, 4.8% CH4 and 4.6% CO2. A peak temperature of 1,070 K and 33% for chemical efficiency were achieved. In spite of using homogeneous heating along the reactor wall, the process temperature decreases near the gas outlet. This is due to solid material depletion decreasing the process thermal inertia. During the final stages, H2 and CO concentration also record an increase due to the endothermic carbon gasification as well as water-gas shift and methanation reactions. 2021 artículo científico 0120-6230 https://www.redalyc.org/articulo.oa?id=43067842007 https://www.redalyc.org/journal/430/43067842007/ https://www.redalyc.org/journal/430/43067842007/html/ https://www.redalyc.org/journal/430/43067842007/43067842007.epub https://www.redalyc.org/journal/430/43067842007/movil 10.17533/udea.redin.20200475 en http://www.redalyc.org/revista.oa?id=430 Revista Facultad de Ingeniería Universidad de Antioquia application/pdf Universidad de Antioquia Revista Facultad de Ingeniería Universidad de Antioquia (Colombia) Num.98 |
| title | Biomass gasification under external heating and using steam as a gasifying agent: Numerical analysis |
| topic | Ingeniería syngas hydrogen biomass energy Renewable resources |
| url | https://www.redalyc.org/articulo.oa?id=43067842007 https://www.redalyc.org/journal/430/43067842007/ https://www.redalyc.org/journal/430/43067842007/html/ https://www.redalyc.org/journal/430/43067842007/43067842007.epub https://www.redalyc.org/journal/430/43067842007/movil |