Fernández, J;
Sotenko, M;
Derevschikov, V;
Lysikov, A;
Rebrov, EV;
(2016)
A radiofrequency heated reactor system for post-combustion carbon capture.
Chemical Engineering and Processing: Process Intensification
, 108
pp. 17-26.
10.1016/j.cep.2016.07.004.
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Abstract
Several problems with stabilization of electricity grid system are related to the time lag between the electricity supply and demand of the end users. Many power plants run for a limited period of time to compensate for increased electricity demand during peak hours. The amount of CO_{2} generated by these power installations can be substantially reduced via the development of new demand side management strategies utilizing CO_{2} absorption units with a short start-up time. The sorbent can be discharged using radiofrequency (RF) heating to fill the night-time valley in electricity demand helping in the stabilization of electricity grid. Herein a concept of RF heated fixed bed reactor has been demonstrated to remove CO_{2} from a flue gas using a CaCO_{3} sorbent. A very stable and reproducible operation has been observed over twenty absorption-desorption cycles. The application of RF heating significantly reduced the transition time required for temperature excursions between the absorption and desorption cycles. The effect of flow reversal during desorption on desorption time has been investigated. The desorption time was reduced by 1.5 times in the revered flow mode and the total duration of a single absorption-desorption cycle was reduced by 20%. A reactor model describing the reduced desorption time has been developed.
| Type: | Article |
|---|---|
| Title: | A radiofrequency heated reactor system for post-combustion carbon capture |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.cep.2016.07.004 |
| Publisher version: | https://doi.org/10.1016/j.cep.2016.07.004 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | RF heating, Carbon capture, Flow reversal mode, CaCO_{3} |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10113188 |
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