Kinetic study on co-combustion of pulverized anthracite and bituminite for blast furnace injection
合作燃烧上的运动学习白煤研磨了并且为强风炉子注射的 bituminite作者机构：School of Materials and MetallurgyUniversity of Science and Technology LiaoningAnshan 114051LiaoningChina
出 版 物：《Journal of Iron and Steel Research International》 (Journal of Iron and Steel Research, International)
年 卷 期：2021年第28卷第8期
页 面：949-964页
核心收录：
学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程]
基 金：supported by the National Natural Science Foundation of China(51874171,51604148,51974154 and 52074150) Liaoning Provincial Natural Science Foundation Guiding Program of China(2019-ZD-0273)
主 题：Blast furnace Pulverized coal Coal blend Non-isothermal combustion Kinetic analysis
摘 要：Combustion behavior of single pulverized coals(PCs)and co-combustion characteristics of anthracite(AT)and bituminite(BT)blends with 20 wt.%volatile were studied by thermogravimetric *** results indicated that reaction characteristics of PCs were closely related to their functional group structure and consequently,the pyrolysis of PCs with highly active functional groups initiated at lower *** was also noticed that the discrepancy of functional group structures between AT and BT might impair their interaction during *** early exhaust of BT at low temperatures would possibly lead to an independent combustion of volatile and residual carbon and eventually the inefficient combustion of their ***,the mixing of AT and BT with similar functional group structures was more likely to achieve blends with superior combustion ***,non-isothermal kinetic analysis mani-fested that the combustion of blends followed random pore model(RPM),and therefore,the parameters calculated by RPM were more accurate to describe their combustion *** kinetic calculation results showed that the activation energy required for decomposition of blends in early combustion stage was much lower owing to the excellent activity of volatile,while residual carbon with stable aromatic hydrocarbon demanded more energy to initiate its combustion.
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