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Novel Process for Carbon Capture and Utilization and Saline Wastes Valorization

Baena-Moreno, Francisco M., Vega, Fernando, Pastor-Pérez, Laura, Reina, T.R., Navarrete, Benito and Zhang, Zhien (2019) Novel Process for Carbon Capture and Utilization and Saline Wastes Valorization Journal of Natural Gas Science and Engineering, 103071.

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Novel Process for Carbon Capture and Utilization and Saline Wastes Valorization - AAM.docx - Accepted version Manuscript
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Herein a novel process for CO₂ capture and utilization suitable for small-medium scale applications is presented. The use of potassium and calcium wastes is proposed as an alternative low-energy path to CO₂ capture and waste valorization. In our work, CaCO₃ precipitation studies were performed to corroborate the feasibility of the novel process described. Reaction time, reaction temperature, molar ratio, and K₂CO₃ initial concentration were varied to analyse their effects on the precipitation efficiency. The purity and main characteristics of the obtained product were physicochemically characterized to evaluate the potential cost of the final solid product by means of Raman spectroscopy, X-ray diffraction, FTIR, and scanning electron microscopy. Results show that promising precipitation efficiencies are obtained in comparison with other waste-valorization and CO₂ capture process, even at room temperatures. High quality calcite was obtained as solid product. Overall our work confirms the technical viability of the proposed route to synergize CO₂ capture and saline waste utilization.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
Baena-Moreno, Francisco M.
Vega, Fernando
Pastor-Pérez, Laura
Navarrete, Benito
Zhang, Zhien
Date : 18 November 2019
Funders : Engineering and Physical Sciences Research Council (EPSRC), Royal Society
DOI : 10.1016/j.jngse.2019.103071
Copyright Disclaimer : © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Uncontrolled Keywords : CO₂ capture and utilization; Calcium carbonate production; Waste valorization; Clean energy; Low-carbon strategy
Depositing User : Clive Harris
Date Deposited : 27 Nov 2019 14:07
Last Modified : 27 Nov 2019 14:08

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