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Title: H2Oによるコークスガス化反応における反応の種類
Other Titles: The Kinds of Reactions in Coke Gasification by H2O
Authors: 柏谷, 悦章1 Browse this author →KAKEN DB
石井, 邦宜2 Browse this author
Authors(alt): Kashiwaya, Yoshiaki1
Ishii, Kuniyoshi2
Keywords: metallurgical coke
gasification by H2O
gas analysis
water gas reaction
water gas shift reaction
Boudouard reaction
Issue Date: 1-Dec-1993
Publisher: 日本鉄鋼協会
Journal Title: 鉄と鋼
Volume: 79
Issue: 12
Start Page: 1305
End Page: 1310
Publisher DOI: 10.2355/tetsutohagane1955.79.12_1305
Abstract: 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.
Rights: 著作権は日本鉄鋼協会にある
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 柏谷 悦章

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