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Título: | Optimised production of tailored syngas from municipal solid waste (MSW) by sorption-enhanced gasification |
Autor: | Martínez Berges, Isabel; Grasa Adiego, Gemma CSIC ORCID ; Callén Romero, M. Soledad ; López Sebastián, José Manuel CSIC ORCID ; Murillo Villuendas, Ramón CSIC ORCID | Palabras clave: | Waste to chemicals/fuel Municipal solid waste Steam gasification In-situ CO2 removal CaO Bubbling fluidized bed |
Fecha de publicación: | 29-jun-2020 | Editor: | Elsevier BV | Citación: | Chemical Engineering Journal 401: 126067 (2020) | Resumen: | Sorption-enhanced gasification (SEG) is a promising indirect gasification route for the production of synthetic fuels since it allows the H2, CO and CO2 content of the resulting syngas to be adjusted. This SEG process has been successfully demonstrated at pilot scale for lignocellulosic biomass and other agricultural and forest waste products, mainly focusing on H2-rich gas production. Within this work, the potential application of the SEG process to a material derived from municipal solid waste (MSW) as feedstock is experimentally demonstrated in a 30 kWth bubbling fluidised-bed (BFB) gasifier. The influence of the sorbent-to-biomass ratio, steam excess and gasification temperature has been carefully analysed in order to understand their effect on SEG performance. Moreover, main conditions able to affect the resulting syngas composition, specifically in terms of H2, CO and CO2 content, have been indicated. Gasification temperature turned out to be the variable that most influenced syngas composition due to the limiting mechanisms associated with the carbonation of the CaO used as bed material. This operating variable also determined biomass conversion, together with solids residence time in the gasifier, resulting in a wide variation of fixed carbon conversion under the studied conditions. Finally, tar yield and composition were evaluated as a function of temperature and the sorbent-to-biomass ratio used, resulting in tar contents as low as 7 g/Nm3 (dry gas), consisting mainly of 1-ring aromatic compounds. | Descripción: | 8 figures, 5 tables | Versión del editor: | http://dx.doi.org/10.1016/j.cej.2020.126067 | URI: | http://hdl.handle.net/10261/217518 | DOI: | 10.1016/j.cej.2020.126067 | ISSN: | 1385-8947 |
Aparece en las colecciones: | (ICB) Artículos |
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