Thermochemical Storage of Medium-Temperature Heat Using MgO Promoted with Eutectic Ternary Mixture LiNO3-NaNO3-KNO3 | Sciact - CRIS-system of Boreskov Institute of Catalysis

Thermochemical Storage of Medium-Temperature Heat Using MgO Promoted with Eutectic Ternary Mixture LiNO3-NaNO3-KNO3 Full article

Journal

Journal of Energy Storage
ISSN: 2352-152X

Output data

Year: 2022, Volume: 51, Article number : 104409, Pages count : 8 DOI: 10.1016/j.est.2022.104409

Tags

Thermochemical energy storage; Magnesium oxide; Magnesium carbonate; Medium-temperature heat; Modification; Eutectic salt mixture

Authors

Shkatulov Alexandr ¹ , Miura Haruka ² , Kim Seon Tae ³ , Zamengo Massimiliano ⁴ , Harada Takuya ² , Takasu Hiroki ³ , Kato Yukitaka ^2,5 , Aristov Yuri ^5,6

Affiliations

1	Department of Applied Physics, Eindhoven University of Technology, De Rondom 70, 5612, AP, Eindhoven, the Netherlands
2	Graduate Major of Nuclear Engineering, Department of Chemical Science and Engineering, School of Materials of Chemical Technology, Tokyo Institute of Technology, 2-12-1-N1-22, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
3	Laboratory for Zero Carbon Energy, Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1-N1-22, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
4	School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-S8-29, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
5	World Research Hub Initiative, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan
6	Boreskov Institute of Catalysis, Lavrentiev av. 5, Novosibirsk 630090, Russia

Funding (1)

Tokyo Institute of Technology

Tokyo Tech World Research Hub Initiative (WRHI) Program

Decarbonation of MgCO3 is promising for thermochemical energy storage (TCES) at medium temperatures as it has appropriate reaction thermodynamics and low material cost. For approaching the problem of kinetic hindrance and severe reaction metastability, MgO was modified with the triple eutectic mixture LiNO3-NaNO3-KNO3 (Li0.30Na0.18K0.52NO3) to investigate the sorption/desorption properties, which were studied in detail for prospective conditions of a TCES system. The composites with various salt contents were comprehensively characterized by X-ray diffraction, N2 sorption, Scanning electron microscopy (SEM). The sorption behavior was tested at various salt contents, temperatures (290–360 °C) and CO2 pressures (50–100 kPa). The conversion of MgO to MgCO3 up to 0.65 and the CO2 uptake up to 16.2 mmol/g were found. The heat storage capacity reached 950 kJ/kg-composite and decreased down to 750 kJ/kg-composite after 20 carbonation/decarbonation cycles. The results obtained suggest an excellent performance of the material under the conditions that allow utilization of heat at T > 400 °C.

Shkatulov A. , Miura H. , Kim S.T. , Zamengo M. , Harada T. , Takasu H. , Kato Y. , Aristov Y.
Thermochemical Storage of Medium-Temperature Heat Using MgO Promoted with Eutectic Ternary Mixture LiNO3-NaNO3-KNO3
Journal of Energy Storage. 2022. V.51. 104409 :1-8. DOI: 10.1016/j.est.2022.104409 WOS Scopus РИНЦ OpenAlex

Submitted:	Sep 28, 2021
Accepted:	Mar 9, 2022
Published online:	Mar 29, 2022
Published print:	Jul 1, 2022

Web of science:	WOS:000790071500008
Scopus:	2-s2.0-85127209215
Elibrary:	48421577
OpenAlex:	W4220790937

DB	Citing
Scopus	11
Elibrary	7
Web of science	10
OpenAlex	12