高炉块状带喷吹页岩气化学反应热力学研究  

Thermodynamic Study on Chemical Reaction of Shale Gas Injected Into Blast Furnace Block Zone

作　　者：李鑫 秦跃林[1] 高绪东[1] 胡景兰 LI Xin;QIN Yuelin;GAO Xudong;HU Jinglan(School of Metallurgy and Materials Engineering,Chongqing University of Science and Technology,Chongqing 401331,China)

机构地区：[1]重庆科技学院冶金与材料工程学院,重庆401331

出　　处：《重庆科技学院学报（自然科学版）》2022年第3期109-116,共8页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家自然科学基金项目“炉渣热解可燃固体废弃物过程中高炉熔渣释能及矿相重构的协同机制”(51974054);重庆科技学院研究生创新计划项目“富氢条件下高反应性焦炭气化与烧结矿还原反应协同行为研究”(YKJCX2020214)。

摘　　要：根据自由能最小原理,分析了高炉炉身段喷吹页岩气化学反应热力学行为。根据还原产物的变化,将整个还原过程划分为α、β和γ等3个阶段。当H_(2)和CO混合时,混合气体在α阶段的利用率不随其配比的变化而变化。当反应温度为900℃时,还原过程加入CH_(4),可以提高气体利用率,减少还原气体的使用量。通过研究确定了符合条件的配气方案。According to the principle of minimum free energy,the thermodynamic behavior of chemical reaction after injecting shale gas into the body of blast furnace is analyzed.According to the change of reduction products,the whole reduction process is divided into α,β and γ three stages.In α stage,the utilization of H_(2) and CO does not change with the change of ratio.When the reaction temperature is 900℃,the addition of CH_(4) in the reduction process can improve the gas utilization rate and reduce the use of reducing gas.Through the research,the qualified gas distribution scheme is determined.

关 键 词：高炉 页岩气 最小原理 还原 热力学 煤气利用率 

分 类 号：O642[理学—物理化学]