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A combined two-stage process of pyrolysis and catalytic cracking of municipal solid waste for the production of syngas and solid refuse-derived fuels

AuthorsVeses Roda, Alberto ; Sanahuja-Parejo, Olga; Callén Romero, Mª Soledad ; Murillo Villuendas, Ramón ; García Martínez, Tomás
KeywordsMunicipal solid waste
Refuse-derived fuel
Calcined dolomite
Issue Date12-Oct-2019
CitationWaste Management 101: 171-179 (2020)
AbstractPyrolysis combined to either thermal cracking or catalytic cracking of municipal solid waste was performed in a laboratory-scale facility consisting of a fixed-bed reactor followed by a tubular cracking reactor. The results showed great potential for the production of syngas. The incorporation of inexpensive and widely available dolomite in the cracking reactor (with a constant feedstock to calcined dolomite ratio of 5:1) favoured the catalytic cracking of the primary pyrolysis products towards H2 and CO in a temperature range of 800–900 °C. More particularly, it was possible at 900 °C to achieve a syngas consisting of more than 80 vol% CO and H2 with a heating value of 16 MJ/Nm3. Additionally, a homogeneous solid fuel was obtained as a solid residue, which can be used to provide additional energy to support the process or as a refuse-derived fuel. Thus, the great potential of this process was demonstrated for turning municipal solid waste into a valuable gas fraction that can be used directly as a fuel or as a source of different value-added products.
Description5 Figuras, 4 Tablas.-- Información suplementaria disponible en línea en la página web del editor.-- © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Publisher version (URL)http://dx.doi.org/10.1016/j.wasman.2019.10.009
Appears in Collections:(ICB) Artículos
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