[1]顾海明,吴家桦,沈来宏,等.基于铁基载氧体串行流化床煤化学链燃烧的滞流化现象[J].东南大学学报(自然科学版),2013,43(3):531-535.[doi:10.3969/j.issn.1001-0505.2013.03.016]
 Gu Haiming,Wu Jiahua,Shen Laihong,et al.Defluidization of iron-based oxygen carrier during chemical looping combustion of coal in continuous reactor[J].Journal of Southeast University (Natural Science Edition),2013,43(3):531-535.[doi:10.3969/j.issn.1001-0505.2013.03.016]
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基于铁基载氧体串行流化床煤化学链燃烧的滞流化现象()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
43
期数:
2013年第3期
页码:
531-535
栏目:
能源与动力工程
出版日期:
2013-05-20

文章信息/Info

Title:
Defluidization of iron-based oxygen carrier during chemical looping combustion of coal in continuous reactor
作者:
顾海明1吴家桦2沈来宏1肖军1
1东南大学能源热转换及其过程测控教育部重点实验室, 南京 210096; 2中国东方电气集团有限公司中央研究院, 成都 611731
Author(s):
Gu Haiming1 Wu Jiahua2 Shen Laihong1 Xiao Jun1
1Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China
2Central Research Institute, Dongfang Electric Corporation, Chengdu 611731, China
关键词:
化学链燃烧 Fe基载氧体 滞流化
Keywords:
chemical looping combustion Fe-based oxygen carrier coal defluidization
分类号:
TK546
DOI:
10.3969/j.issn.1001-0505.2013.03.016
摘要:
以高纯的Fe2O3为载氧体在1 kW串行流化床反应器上进行了煤化学链燃烧连续实验研究.结果表明:实验前期,载氧体展现出了良好的反应性能,煤气化产物转换率较高,额外氧耗率仅为1.0%~2.4%;实验后期,载氧体颗粒表面的严重烧结导致其孔容和比表面积急剧降低,载氧体的活性降低,各项指标衰减;载氧体氧化过程强放热引起颗粒团聚并结块,导致空气反应器出现滞流化现象,实验无法正常继续,因而有必要对该高纯的铁基载氧体加入惰性材料(SiO2,Al2O3等),以提高其抗烧结能力.
Abstract:
Chemical looping combustion of coal was experimentally investigated in a 1 kW interconnected fluidized bed reactor using highly pure Fe2O3 oxygen carrier. Experiment results show that the oxygen carrier exhibits good performance in the early reaction stage. The conversion efficiency of coal gasification products is high and the extra oxygen demand is 1.0% to 2.4%. In the later period of experiment, serious sintering occurs on the particle surface of oxygen carrier. Both the pore and the specific surface sharply decrease and, therefore, the reactivity of oxygen carrier together with various indexes deteriorates. The intensively exothermic oxidation of the oxygen carrier causes the agglomeration and caking of the oxygen carrier particles. As a result, defluidization occurs in the air reactor and the experiment can no longer proceed. The results indicate that it is necessary to add inert materials e.g., SiO2, Al2O3 into the highly pure Fe-based oxygen carrier to enhance its sintering resistance.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 顾海明(1986—),男,博士生; 沈来宏(联系人),男,博士,教授,博士生导师,lhshen@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(51276037, 50976023)、江苏省科技支撑项目(BE2012166)、东南大学优秀博士论文基金资助项目(YBJJ1206).
引文格式: 顾海明,吴家桦,沈来宏,等.基于铁基载氧体串行流化床煤化学链燃烧的滞流化现象[J].东南大学学报:自然科学版,2013,43(3):531-535. [doi:10.3969/j.issn.1001-0505.2013.03.016]
更新日期/Last Update: 2013-05-20