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典型文献
Comparison of semi-coke with traditional pulverized coal injection and iron ore sintering fuels based on chemical structure and combustion behavior
文献摘要:
Substantial semi-coke has been produced through the industrialized low-temperature pyrolysis process,which has great potential as an alternative fuel for pulverized coal injection(PCI)and iron ore sintering.X-ray diffraction,Raman spectroscope,and thermal analysis were used to compare the carbon chemical structure and combustion reactivity of semi-coke,pulverized coal,and coke breeze.The results show that the average volatile matter content in 46 types of semi-cokes is 8.94 wt.%.The fluctuation range of the characteristic parameters of the semi-coke chemical structure is d002=(0.352-0.379)nm and AD1/AG=(2.51-7.92),while the fluctuation range of the characteristic parameters of pul-verized coal is d002=(0.348-0.373)nm and AD1/AG=(1.71-9.03)(where d002 means the interlayer spacing between the aromatic planes,and AD1/AG is an index that characterizes the degree of disorder of the char structure through the area ratio of the defect peak band D1 to the perfect graphite peak band G);the overlap between these ranges is relatively high.Contrarily,the fluctuation range of the characteristic parameters of coke breeze is d002=(0.343-0.350)nm and AD1/AG=(0.75-2.51),which is markedly different from that of semi-coke.Semi-coke combustion reactivity is close to that of pulverized coal,but considerably better than that of coke breeze.In terms of chemical structure and combustion reactivity,semi-coke can be used as an alternative fuel for PCI;however,when used for sintering alternative fuel,matching of the heat supply and demand in the later sintering stage must be scrupulously analyzed.
文献关键词:
作者姓名:
Jiang-yong He;Chong Zou;Jun-xue Zhao;Dong Liang;Jia-le Xi;Cheng Ma
作者机构:
School of Metallurgical Engineering,Xi'an University of Architecture and Technology,Xi'an 710311,Shaanxi,China;Technical Center of Shandong Iron and Steel Co.,Ltd.(Laiwu Branch),Jinan 271104,Shandong,China
引用格式:
[1]Jiang-yong He;Chong Zou;Jun-xue Zhao;Dong Liang;Jia-le Xi;Cheng Ma-.Comparison of semi-coke with traditional pulverized coal injection and iron ore sintering fuels based on chemical structure and combustion behavior)[J].钢铁研究学报(英文版),2022(05):725-740
A类:
cokes,verized,scrupulously
B类:
Comparison,semi,traditional,pulverized,coal,injection,iron,ore,sintering,fuels,chemical,structure,combustion,behavior,Substantial,has,been,produced,through,industrialized,low,temperature,pyrolysis,process,which,great,potential,alternative,PCI,ray,diffraction,Raman,spectroscope,thermal,analysis,were,used,compare,carbon,reactivity,breeze,results,show,that,average,volatile,matter,content,types,wt,fluctuation,characteristic,parameters,d002,AD1,AG,while,where,means,interlayer,spacing,between,aromatic,planes,characterizes,degree,disorder,area,ratio,defect,peak,band,perfect,graphite,overlap,these,ranges,relatively,high,Contrarily,markedly,different,from,Semi,close,but,considerably,better,than,In,terms,can,however,when,matching,heat,supply,demand,later,stage,must,analyzed
AB值:
0.422073
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