Adapting the MgO-CO2 Working Pair for Thermochemical Energy Storage by Doping with Salts
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Energy Conversion and Management
ISSN: 0196-8904
|
| Вых. Данные |
Год: 2019,
Том: 185,
Страницы: 473-481
Страниц
: 9
DOI:
10.1016/j.enconman.2019.01.056
|
| Ключевые слова |
Thermochemical energy storage; Magnesium oxide; Magnesium carbonate; Salt modification; Doping |
| Авторы |
Shkatulov A.I.
1
,
Kim S.T.
2
,
Miura H.
2
,
Kato Y.
2
,
Aristov Yu.I.
1,2
|
| Организации |
| 1 |
Boreskov Institute of Catalysis, Ac. Lavrentiev av. 5, Novosibirsk 630090, Russia
|
| 2 |
Tokyo Institute of Technology, 2-12-1-N1-22, Ōokayama, Meguro-ku, Tokyo 152-8550, Japan
|
|
Информация о финансировании (1)
|
1
|
Tokyo Institute of Technology
|
Tokyo Tech World Research Hub Initiative (WRHI) Program
|
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.