Distribution of sulfur in chemical looping combustion of anthracite based on Fe-based oxygen carrier

ZHANG Zhifeng; WANG Yifei; ZHU Longchu; LI Jilin; WANG Fuchen; YU Guangsuo

doi:10.11949/j.issn.0438-1157.20170838

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Distribution of sulfur in chemical looping combustion of anthracite based on Fe-based oxygen carrier

更新时间：2025-12-10

- Distribution of sulfur in chemical looping combustion of anthracite based on Fe-based oxygen carrier
- CIESC Journal Issue 4, Pages: 1578-1585(2018)
- 作者机构：
  
  华东理工大学煤气化及能源化工教育部重点实验室, 上海市煤气化工程技术研究中心,上海,200237
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170838
  CLC： K16
- Online First：05 April 2018，
  
  Published：05 April 2018
- 稿件说明：
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ZHANG Zhifeng, WANG Yifei, ZHU Longchu, et al. Distribution of sulfur in chemical looping combustion of anthracite based on Fe-based oxygen carrier[J]. CIESC Journal, 2018, (4): 1578-1585.
DOI：

ZHANG Zhifeng, WANG Yifei, ZHU Longchu, et al. Distribution of sulfur in chemical looping combustion of anthracite based on Fe-based oxygen carrier[J]. CIESC Journal, 2018, (4): 1578-1585. DOI： 10.11949/j.issn.0438-1157.20170838.

摘要

在间歇式固定床反应器上，基于Fe2O3/Al2O3载氧体，研究了还原阶段反应温度和Fe2O3负载量对无烟煤化学链燃烧产物及S元素分布的影响。研究结果表明，含碳气体释放量随反应温度升高而增加，随Fe2O3负载量先增加后减少。产物中CO2比例随反应温度升高先增加后减少，在850℃时达到最高（37.6%）。在实验条件下，未检测到SO2生成。反应2 h时，载氧体中S元素的富集程度随温度和Fe2O3负载量升高而增加；5.5 h时，载氧体中S元素分布比例随温度升高而显著降低。利用SEM分析了载氧体表面微观形态结构。分析表明，Fe2O3负载量大于40%会导致载氧体轻微烧结。

Abstract

In a batch fixed bed reactor

distribution of sulfur was studied during chemical looping combustion of anthracite based Fe2O3/Al2O3 oxygen carrier(OC). Reduction temperature and content of Fe2O3 were tested as variables. The work showed that the carbonaceous gas quantity increased with increasing temperature

while it increased first and then decreased with content of Fe2O3 improved. The proportion of CO2 reached the highest value 37.6% at 850℃ and there were no SO2 detected at experiments. At 2 h

the occupation of sulfur in OC increased with improvement of both temperature and the content of Fe2O3. At 5.5 h

the occupation of sulfur in OC decreased obviously with improvement of temperature. Surface microstructure of reacted OC was also evaluated using a scanning electron microscope. The results showed that OC sintered gradually with increase of content of Fe2O3.

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