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EUBCE 2024 - Catarina NOBRE - RDF Co-processing through CO2 Gasification using Waste-based Catalysts

RDF Co-processing through CO2 Gasification using Waste-based Catalysts

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Recovery of energy and nutrients from urban and industrial residues

RDF Co-processing through CO2 Gasification using Waste-based Catalysts

Short Introductive summary

Refuse derived fuel (RDF) produced from the processing of municipal solid waste is a promising raw material for waste-to-energy processes such as gasification. Several catalysts were used to improve the performance of RDF in this process. The study aims at understanding the thermal decomposition of pellets made from a mixture of RDF and biomass in the presence of waste-based catalysts by simulating a CO2 gasification process in a thermogravimetric analyzer (TGA) instrument. Marble and eggshells, which are low-cost bio-based sources of calcium carbonate, were investigated as catalysts. Dolomite was used as a reference for comparison.It was concluded that dolomite may degrade more during the pyrolysis compared to the marble and eggshells, as it was not calcined, hindering the gasification reaction, and subsequently resulting in a lower char conversion. The catalysts based on marble and eggshells favored the reactivity of the RDF:B pellets during gasification, resulting in faster decomposition of the char. In general, the waste-based catalysts performed well, suggesting they have potential for application in waste gasification.

Presenter

Moderator portrait

Catarina NOBRE

Portalegre Polytechnic University, PORTUGAL

Presenter's biography

Catarina Nobre, assistant researcher at VALORIZA@IPPortalegre, holds a PhD in Energy and Bioenergy (NOVA.-SST). Her work centers on biomass and waste conversion, biofuel, and renewable gas production. She's contributed to over 70 publications. Details: http://orcid.org/0000-0001-5733-902X.

Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited


Co-authors:

M. Santos, VALORIZA - Research Center for Endogenous Resource Valorization, Portalegre Polytechnic Institute, Portalegre, PORTUGAL
P. Souza, Department of Chemical Engineering, KTH Royal Institute of Technology, Stockholm, SWEDEN
C. Nobre, VALORIZA - Research Center for Endogenous Resource Valorization, Portalegre Polytechnic Institute, Portalegre, PORTUGAL
B. Rijo, VALORIZA - Research Center for Endogenous Resource Valorization, Portalegre Polytechnic Institute, Portalegre, PORTUGAL
M. Gonçalves, MEtRICs - Mechanical Engineering and Resource Sustainability Center, Department of Science and Techn, Lisboa, PORTUGAL
K. Engvall, Department of Chemical Engineering, KTH Royal Institute of Technology, Stockolm, SWEDEN
P. Brito, VALORIZA - Research Center for Endogenous Resource Valorization, Portalegre Polytechnic Institute, Portalegre, PORTUGAL

Session reference: 1DV.1.12