Adapting the MgO-CO2 Working Pair for Thermochemical Energy Storage by Doping with Salts Full article
| Journal |
Energy Conversion and Management
ISSN: 0196-8904 |
||||
|---|---|---|---|---|---|
| Output data | Year: 2019, Volume: 185, Pages: 473-481 Pages count : 9 DOI: 10.1016/j.enconman.2019.01.056 | ||||
| Tags | Thermochemical energy storage; Magnesium oxide; Magnesium carbonate; Salt modification; Doping | ||||
| Authors |
|
||||
| Affiliations |
|
Funding (1)
| 1 | Tokyo Institute of Technology | Tokyo Tech World Research Hub Initiative (WRHI) Program |
Abstract:
In this work, the MgO-CO2 working pair has been adapted for thermochemical energy storage (TCES) at medium temperatures by the MgO modification with inorganic salts to promote the TCES dynamics. Brief screening of modifying salts showed that lithium acetate (LiOAc) and mixed lithium-potassium nitrate (Li0.42K0.58NO3) additives could considerably promote the MgO carbonation at P(CO2) ≤10 bar and T ≥300 °C. The de- and re-carbonation kinetics, as well as cycling stability of the doped MgO/MgCO3, was reported to outline possible TCES operating conditions (T = 280 °C–380 °C, P(CO2) = 0–1 bar). The heat storage capacity of the salt-promoted MgO was estimated to be 1.6 GJ/m3. A concept of chemical heat pump utilizing the MgO-CO2 working pair was discussed. The salt-promoted MgO-CO2 working pair was concluded to be promising for TCES.
Cite:
Shkatulov A.I.
, Kim S.T.
, Miura H.
, Kato Y.
, Aristov Y.I.
Adapting the MgO-CO2 Working Pair for Thermochemical Energy Storage by Doping with Salts
Energy Conversion and Management. 2019. V.185. P.473-481. DOI: 10.1016/j.enconman.2019.01.056 WOS Scopus РИНЦ AN OpenAlex
Adapting the MgO-CO2 Working Pair for Thermochemical Energy Storage by Doping with Salts
Energy Conversion and Management. 2019. V.185. P.473-481. DOI: 10.1016/j.enconman.2019.01.056 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Oct 16, 2018 |
| Accepted: | Jan 9, 2019 |
| Published online: | Feb 20, 2019 |
| Published print: | Apr 1, 2019 |
Identifiers:
| Web of science: | WOS:000464086800037 |
| Scopus: | 2-s2.0-85061793467 |
| Elibrary: | 38641283 |
| Chemical Abstracts: | 2019:362006 |
| OpenAlex: | W2916687855 |