No.1-8 高炉のブローパイプにおけるガス化反応が微粉炭チャーの反応過程に及ぼす影響の数値解析的検討
No.1-8 Numerical Investigation of the Effect of Gasification Reaction on Reaction Process of Pulverized Coal Char in Blowpipe of Blast Furnace

Shota AKAOTSU, Junichi TANIMOTO, Kengo ISHIMODA, Yasuhiro SAITO, Yohsuke MATSUSHITA, Hideyuki AOKI, Sohey NOZAWA, Akinori MURAO
2016 Proceedings of Conference on Coal Science  
The numerical simulation of pulverized coal combustion is performed to investigate the effect of gasification reaction on char reaction process in blowpipe. The results of the simulation without gasification were compared to those with gasification in gas and particle temperatures. Although the difference of gas temperatures between with and without gasification was small, that of particle temperatures was large at the downstream of blowpipe. This is because the gasification reaction occurs at
more » ... he downstream of blowpipe, and the effect of gasification on small particles was larger than that of large particles. In addition, the conversion of fixed carbon with gasification was slightly higher than that without gasification. The results suggest that the inhibition effect due to the endothermic gasification is small and the char consumption in blowpipe increases by the gasification.
doi:10.20550/jiesekitanronbun.53.0_16 fatcat:6uuzwfwqbbauxomqt6wodyuinu