铁浴煤氧喷射造气机理及动力学研究  

MECHANISM AND KINETICS OF COAL GASIFICATION IN LIQUID IRON BATH WITH COAL-OXYGEN INJECTOIN

作　　者：郭占成[1] 王大光[1] 许志宏[1] 宣德茂[1] 

机构地区：[1]中国科学院化工冶金研究所,北京100080

出　　处：《化工冶金》1993年第4期283-290,共8页

基　　金：中国科学院和国家自然科学基金会联合资助

摘　　要：本文对铁浴煤氧喷射造气反应机理进行了分析和考察,在此基础上建立了动力学模型.结果表明,射流氧使铁氧化成 FeO 并弥散分布于熔铁中,[C]与中间产物 FeO 的反应是气化过程的主要反应.The mechanism of coal gasification in liquid iron bath with coal-oxygen injec- tion was investigated in this paper.Based on the experimental results,a kinetic model of this process was established.At the interface between oxygen jet and liquid iron,Fe was oxidized into intermedium FeO,then FeO was separated into molten iron in droplet form.The FeO droplets was further reduced by dissolved carbon in liquid iron,CO and H_2.The simulated results showed that the reduction of droplet FeO by dissolved carbon in liquid iron was the rate-limit step of gasification.The content of FeO in liquid iron was about 0.13% under the conditions of present experiment.

关 键 词：造气 机理 动力学 铁浴 煤氧喷射 

分 类 号：TF701.1[冶金工程—钢铁冶金]