Application of the Calcium Looping Process for Thermochemical Storage of Variable Energy

Kelly Atkinson (), Robin Hughes and Arturo Macchi ()
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Kelly Atkinson: Natural Resources Canada, Ottawa, ON K1A 1M1, Canada
Robin Hughes: Natural Resources Canada, Ottawa, ON K1A 1M1, Canada
Arturo Macchi: Department of Chemical and Biological Engineering, University of Ottawa, Ottwa, ON K1N 6N5, Canada

Energies, 2023, vol. 16, issue 7, 1-19

Abstract: The calcium looping (CaL) process, which exploits the reversible calcination of calcium carbonate, has been proposed as a solution to the challenges facing deployment of concentrated solar power (CSP). As an extension of the work undertaken to date, this project proposes a novel configuration of the CSP-CaL process which may offer advantages over other proposed configurations, including a reduction in process equipment requirements, elimination of pressure differentials between vessels, and a reduction in compression duty during the energy discharge period. The results obtained through process simulation indicate that the proposed process can achieve round-trip efficiencies in the range of 32–46% and energy storage densities in the range of 0.3–1.0 GJ/m 3 . These parameters are strongly dependent on the residual conversion of the CaO sorbent as well as the efficiency of the power cycles used to remove heat on the carbonator side of the process.

Keywords: energy storage; CO 2 storage; calcium looping; supercritical CO 2 (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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