Chemical looping combustion of coal in a two-stage fuel reactor

SHEN Tianxu; WU Jian; YAN Jingchun; SHEN Laihong

doi:10.11949/j.issn.0438-1157.20180249

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Chemical looping combustion of coal in a two-stage fuel reactor

更新时间：2025-12-10

- Chemical looping combustion of coal in a two-stage fuel reactor
- CIESC Journal Issue 9, Pages: 3965-3974(2018)
- 作者机构：
  
  东南大学能源热转换及其过程测控教育部重点实验室,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180249
  CLC： Q534.9
- Online First：05 September 2018，
  
  Published：05 September 2018
- 稿件说明：
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SHEN Tianxu, WU Jian, YAN Jingchun, et al. Chemical looping combustion of coal in a two-stage fuel reactor[J]. CIESC Journal, 2018, (9): 3965-3974.
DOI：

SHEN Tianxu, WU Jian, YAN Jingchun, et al. Chemical looping combustion of coal in a two-stage fuel reactor[J]. CIESC Journal, 2018, (9): 3965-3974. DOI： 10.11949/j.issn.0438-1157.20180249.

摘要

在5 kWth双级燃料反应器的化学链燃烧装置上，开展煤化学链燃烧特性研究，重点考察反应温度和气化介质对燃烧补偿率、碳增补率、出口气体组分浓度、额外耗氧率以及碳捕集效率的影响规律。实验结果表明，较高的反应温度能显著提高燃烧效率，900℃时出口烟气中CO2浓度可达92.1%；随着反应温度升高，碳捕集率和燃烧补偿率分别上升至99.6%和83.4%，额外耗氧率和碳增补率下降至12.1%和4.8%。以CO2为气化介质时，整体反应效率有大幅下降，额外耗氧率提高至23%。此外，在Ⅰ级FR反应器内发现有少量的团聚颗粒，但并未对流化产生影响。

Abstract

A 5 kWth two-stage fuel reactor of chemical looping combustion facility was successfully built to carry out the characteristic research of coal chemical looping combustion. The experiment focused on the influence of temperature and gasifying agent on the combustion compensation efficiency

carbon supplementation

outlet gas component

oxygen demand and carbon capture efficiency. The results showed that high temperature can significantly improve the combustion efficiency in which the CO2 concentration was up to 92.1% at 900℃. With the increase of temperature

CO2 capture efficiency and combustion compensation efficiency increased to 99.6% and 83.4% respectively

while the oxygen demand and carbon supplementation decreased to 12.1% and 4.8%. The CO2 serving as gasifying agent had an adverse effect on reaction efficiency that the oxygen demand was increased to 23%. In addition

there was a small amount of particles agglomeration in FR-Ⅰ

but had a limited influence on fluidization.

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