用灰关联法分析影响煤表面和反应性的因素  

The Effects of Macerals and Rank on Coal Morphology and Reactivit

作　　者：张小可[1] 陈彩霞[1] 孙学信[1] 郑楚光[1] 

机构地区：[1]华中理工大学煤燃烧国家重点实验室

出　　处：《华中理工大学学报》1995年第5期109-112,共4页Journal of Huazhong University of Science and Technology

基　　金："攀登计划"资助项目.

摘　　要：用灰色关联法，对影响煤表面和反应性的因素的关联度进行排序。用液氮等温吸附法测煤及焦的表面形态，用热天平法测煤及焦的反应性，通过对各因素关联度的计算，找出影响煤表面和反应性的主要因素，并探讨各因素在反应中的影响程度。结果表明，镜质组、煤阶对反应性及表面的影响较大。he grey correlation method is used to analyze the effects of macerals and rank on thereactivity and morphology of coal and the corresponding char.The reactivity is studied bythe combustion characteristics measured with a TGA apparatus, The morphology and poredistribution are measured by isothermal gas adsorption, Eight kinds of coal have been select-ed with the vitrinite reflectance R ranging from 0. 46 to 3. 51, some of which are of the samerank but of different constituents in the macerals while some others are just the opposite.From the calculation by grey correlation, the main factors that affect the coal and char mor-phology and reactivity can be found. The results show that vitrinite and coal rank exert agreat influence on the reactivity and morphology. The sequence of the influence of the affect-ing factors on coal reactivity is V>R>K>I>E,that on coal morphology, R>E>V>K>I, that on the char,V>R>I>K>E and that on char morphology,V>I>R>E>K,re-spectively.

关 键 词：灰色关联 显微组分 反应性 表面形态 

分 类 号：TK16[动力工程及工程热物理—热能工程] TQ533.5[化学工程—煤化学工程]