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Lookup NU author(s): Dr Jonathan McDonough, Dr Richard Law, Emeritus Dr David Reay, Dr Vladimir Zivkovic
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
Up to 25% of the total European Union (EU) CO2 emissions that contribute to global warming are from industry, and while improved energy efficiency and process integration continues to play a role in minimizing these, it is carbon capture (CC) that in future will contribute most to mitigation, until nuclear energy and renewable technologies take over from fossil fuels. One of several CC methods is to use gas-solid adsorption, where the CO2is adsorbed onto a solid. As with the more common absorption process, regeneration is required, and typically a single bed is employed to adsorb CO2 while regeneration and removal of the CO2 takes place in the second bed – carried out by pressure swing adsorption (PSA) or temperature swing adsorption (TSA). Collaborating in an EPSRC-funded project with Heriot-Watt University, where hydrotalcite-based adsorbents are being synthesised, and Sheffield University, where modelling is being undertaken, Newcastle University is examining the intensification of CC using a TSA-based process involving swirling or toroidal fluidized beds. As well as improving adsorption, it is believed that recovered waste heat could be used for desorption using a similar intensified technology. This paper discusses the potential sources of CO2 that are being addressed, and how they will be integrated with the capture and desorption processes where fluidization will be used for the adsorption process. It also describes preliminary work on fluidization of the particles using additive-manufactured miniaturized fluid beds.
Author(s): McDonough JR, Law R, Reay DA, Zivkovic V
Publication type: Article
Publication status: Published
Journal: Thermal Science and Engineering Progress
Year: 2018
Volume: 8
Pages: 17-30
Print publication date: 01/12/2018
Online publication date: 29/07/2018
Acceptance date: 24/07/2018
Date deposited: 29/07/2018
ISSN (print): 2451-9049
Publisher: Elsevier BV
URL: https://doi.org/10.1016/j.tsep.2018.07.012
DOI: 10.1016/j.tsep.2018.07.012
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