鉄と鋼
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
H2Oによるコークスガス化反応における反応の種類
柏谷 悦章石井 邦宜
著者情報
ジャーナル オープンアクセス

1993 年 79 巻 12 号 p. 1305-1310

詳細
抄録
Recently, in order to stabilize the blast furnace conditions, the vapour and/or pulverized coal are injected into blast furnace. The concentration of H2 in blast furnace increases above 8% in such a circumstance. Then it is so important to understand H2 behaviour in blast furnace.
In this study, gasification reaction of metallurgical coke by Ar-H2-H2O mixtures at 1273, 1473 and 1673K has been investigated. The measurement of reaction rate was carried out with gas analysis method using both of Quadrupole Mass Spectrometer (QMS) and Infrared gas analyser. The gas analysis method is so useful for not only the quantifying the reaction rate but also the estimating the kinds of reactions occurring in H2O-coke gasification. The consideration of the kinds of reactions were made by using the thermodynamic characterization of produced gas composition and the variation of the amount of each produced gases (H2, CO, CO2) according to reaction temperature. The kinds of reactions in the region above 1273K were elucidated.
In coke gasification by H2O, main reaction is water gas reaction I. The generation of CO2 is caused by water gas reaction II and the possibility of water gas shift reaction is very low. Further, owing to produced CO2, Boudouard reaction occurs and it becomes prominent in high temperature range.
著者関連情報
© 一般社団法人 日本鉄鋼協会

This article is licensed under a Creative Commons [Attribution-NonCommercial-NoDerivatives 4.0 International] license.
https://creativecommons.org/licenses/by-nc-nd/4.0/
次の記事
feedback
Top