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Converting CO2 from biogas and MgCl2 residues into valuable magnesium carbonate: A novel strategy for renewable energy production

Baena-Moreno, Francisco M., Rodríguez-Galán, Mónica, Vega, Fernando, Reina, T. R., Vilches, Luis F. and Navarrete, Benito (2019) Converting CO2 from biogas and MgCl2 residues into valuable magnesium carbonate: A novel strategy for renewable energy production Energy, 180. pp. 457-464.

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In this work a novel strategy for bio-methane production and magnesium chloride waste valorization is addressed. The proposed process is a potential alternative path to the already existing biogas upgrading technologies by carbon dioxide mineralization into valuable magnesium carbonate. The main parameters affecting the precipitation efficiency (reaction time, reaction temperature, and molar ratio reactant/precipitator) are studied, leading to promising results which spark further investigation in this innovative route. Additionally the purity and the morphology of the obtained solid product was accurately analysed through different physicochemical characterization techniques such as Raman, X-Ray diffraction and Scanning electron microscope. The characterisation study reveals a mixture of Nesqueonite and Dypingite carbonate phases obtained in the process being the later the dominant phase in the resulting precipitate. Overall, the results discussed herein confirmed the technical feasibility of this innovative strategy for synergizing carbon dioxide mineralization and renewable energy production.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
Baena-Moreno, Francisco
Rodríguez-Galán, Mónica
Vega, Fernando
Reina, T.
Vilches, Luis F.
Navarrete, Benito
Date : 1 August 2019
Funders : Engineering and Physical Sciences Research Council (EPSRC), Royal Society
DOI : 10.1016/
Copyright Disclaimer : © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Uncontrolled Keywords : Carbon Capture and Utilization; Biogas Upgrading; Magnesium Carbonate Production; Waste Valorization; Bio-methane Production
Depositing User : Clive Harris
Date Deposited : 28 May 2019 12:44
Last Modified : 28 May 2019 12:44

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