[1]王晓佳,金保昇,张勇,等.基于铁基载氧体的甲烷化学链燃烧数值模拟[J].东南大学学报(自然科学版),2011,41(3):584-590.[doi:10.3969/j.issn.1001-0505.2011.03.030]
　Wang Xiaojia,Jin Baosheng,Zhang Yong,et al.Numerical simulation of methane chemical looping combustion with Fe-based oxygen carrier[J].Journal of Southeast University (Natural Science Edition),2011,41(3):584-590.[doi:10.3969/j.issn.1001-0505.2011.03.030]
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基于铁基载氧体的甲烷化学链燃烧数值模拟()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
41
期数:
2011年第3期
页码:
584-590
栏目:
化学化工
出版日期:
2011-05-20

文章信息/Info

Title:
Numerical simulation of methane chemical looping combustion with Fe-based oxygen carrier
作者:
王晓佳; 金保昇; 张勇; 殷上轶; 钟文琪; 宋敏
(东南大学能源与环境学院,南京 210096)
Author(s):
Wang Xiaojia; Jin Baosheng; Zhang Yong; Yin Shangyi; Zhong Wenqi; Song Min
(School of Energy and Environment, Southeast University, Nanjing 210096, China)
关键词:
化学链燃烧; 铁基载氧体; 数值模拟; Gibbs自由能最小化
Keywords:
chemical-looping combustion;  iron-based oxygen carrier;  numerical simulation;  Gibbs free energy minimization
分类号:
T301
DOI:
10.3969/j.issn.1001-0505.2011.03.030
摘要:
基于Gibbs自由能最小化原理,建立了以Fe2O3为载氧体的甲烷化学链燃烧模型,研究了流化床燃料反应器内反应物摩尔比、温度以及操作压力对反应产物分布和载氧体反应活性的影响,并揭示了其反应机理.结果表明:当Fe2O3与CH4反应物摩尔比保持在12左右,反应器温度控制在850~900℃范围时,出口处CO2的摩尔分数达到最大值; 提高反应器温度降低了载氧体的反应活性; 增加反应器操作压力有助于提高载氧体的反应活性,但同时由于促进了CH4的重整反应而导致CO2摩尔分数的降低.
Abstract:
A model of chemical-looping combustion of methane with Fe2O3 as oxygen carrier has been established based on the principle of Gibbs free energy minimization. Effects of the mole ratio of reactants, temperature and operation pressure on the distribution of reaction products have been studied, and the reaction mechanism is revealed. Results show that the mole fraction of CO2 reaches the maximum when the mole ratio of reactants remains 12 or so and the temperature of reduction reaction ranges between 850~900℃. As the temperature increases, the reactivity of Fe-based oxygen carrier declines. By increasing the operating pressure, the reactivity of Fe2O3 rises, but the reforming of CH4is also promoted, which results in the decrease of mole fraction of CO2.

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[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.[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.[doi:10.3969/j.issn.1001-0505.2013.03.016]
[2]周玉飞,沈来宏,顾海明,等.生物质灰对铁矿石载氧体性能的影响[J].东南大学学报(自然科学版),2015,45(3):503.[doi:10.3969/j.issn.1001-0505.2015.03.016]
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备注/Memo

备注/Memo:
作者简介:王晓佳(1987—),男,博士生;金保昇(联系人),男,教授,博士生导师,bsjin@seu.edu.cn.
基金项目:国家自然科学基金资助项目(51076029)、国际科技合作资助项目(2010DFA61960).
引文格式: 王晓佳,金保昇,张勇,等.基于铁基载氧体的甲烷化学链燃烧数值模拟[J].东南大学学报:自然科学版,2011,41(3):584-590.[doi:10.3969/j.issn.1001-0505.2011.03.030]
更新日期/Last Update: 2011-05-20