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Titolo:
Coal gasification with CO2 in molten salt for solar thermal/chemical energy conversion
Autore:
Matsunami, J; Yoshida, S; Oku, Y; Yokota, O; Tamaura, Y; Kitamura, M;
Indirizzi:
Tokyo Inst Technol, Res Ctr Carbon Recycling & Utilizat, Meguro Ku, Tokyo 1528552, Japan Tokyo Inst Technol Tokyo Japan 1528552 , Meguro Ku, Tokyo 1528552, Japan Univ Shiga Prefecture, Sch Engn, Dept Mat Sci, Hikone, Shiga 5228533, Japan Univ Shiga Prefecture Hikone Shiga Japan 5228533 ne, Shiga 5228533, Japan
Titolo Testata:
ENERGY
fascicolo: 1, volume: 25, anno: 2000,
pagine: 71 - 79
SICI:
0360-5442(200001)25:1<71:CGWCIM>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
CATALYTIC GASIFICATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Tamaura, Y Tokyo Inst Technol, Res Ctr Carbon Recycling & Utilizat, MeguroKu, 2-12-1Ookayama, Tokyo 1528552, Japan Tokyo Inst Technol 2-12-1 Ookayama Tokyo Japan 1528552 , Japan
Citazione:
J. Matsunami et al., "Coal gasification with CO2 in molten salt for solar thermal/chemical energy conversion", ENERGY, 25(1), 2000, pp. 71-79

Abstract

Coal gasification with CO2 in Na2CO3-K2CO3 molten salt that was used as thermal storage for gas/solid heterogeneous reaction was studied to apply this system for solar thermal/chemical energy conversion. The reactions were performed at 1173 K under various CO2 flow rates, weights of the molten saltand Na2CO3/K2CO3 ratios. The CO2 gas consumption rate increased with increasing CO2 flow rate, however, the conversion efficiency of CO2 to CO was decreased. As the weight of the molten salt increased, the rate of the gasification reaction was decreased. The maximum conversion efficiency of CO2 to CO under the experimental conditions reached 71% at the CO2 flow rate of 310 mu mol/s. Thus 37 J of the solar thermal energy can be converted into chemical energy per second by the endothermic process of the Boudouard reaction (C+CO2=2CO-169.16 kJ (at 1150 K); coal-10 g), when this gasification reaction would be performed by using concentrated solar heat. (C) 2000 ElsevierScience Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/01/20 alle ore 13:01:13