摘要
以氧化铁作为熔融盐循环热载体无烟燃烧技术中的氧载体,在CH4气氛下进行了热重实验,并根据TG曲线进行了动力学分析,最后判断反应过程在550～670℃温度段为扩散控制的G-B模型,而在810～970℃温度段则为收缩球体模型,并依据模型分别计算出了活化能和频率因子。
Ferric oxide as an oxygen carrier is used in NFCT （nonflame combustion technology using thermal cyclic carrier of molten salt）, and thermal gravity analysis of Fe2O3 is carded out in methane atmosphere, Fe2O3 as a provider of oxygen, and kinetic analysis is finished in the basis of TG curve. Finally, the G-B model in 550 - 670 ℃ and the contractive sphere model in 810 - 970 ℃ are though that they are suitable for the reactions, and the values of activation energy E and frequency factor A are calculated according to the models respectively.
出处
《工业加热》
CAS
2007年第2期16-18,共3页
Industrial Heating
基金
国家自然科学基金
宝钢科学基金联合资助项目(50574046
50164002)
云南省自然科学基金资助项目(2004E0058Q)
教育部高校博士学科点专项科研基金资助项目(20040674005)
关键词
氧化铁
无烟燃烧技术
甲烷
热重分析
活化能
ferric oxide
nonflame combustion
methane
thermal gravity analysis
activation energy
