Attrition of limestone during fluidized bed calcination and sulfation

CAI Runxia; HUANG Yiqun; CHENG Lu; LI Dongfang; JEON Chung-hwan; YANG Hairui; LYU Junfu; ZHANG Man

doi:10.11949/0438-1157.20190335

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Attrition of limestone during fluidized bed calcination and sulfation

更新时间：2026-07-24

- Attrition of limestone during fluidized bed calcination and sulfation
- CIESC Journal Vol. 70, Issue 8, Pages: 3086-3093(2019)
- 作者机构：
  
  1.清华大学能源与动力工程系，电力系统及发电设备控制和仿真国家重点实验室，北京 100084
  2.釜山国立大学机械工学部，釜山清洁煤中心，韩国釜山
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190335
  CLC： X 701.3
- Received：02 April 2019，
  
  Revised：2019-06-17，
  
  Online First：24 July 2026，
  
  Published：05 August 2019
- 稿件说明：
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蔡润夏, 黄逸群, 程璐, 李东方, JEON Chung-hwan, 杨海瑞, 吕俊复, 张缦. 石灰石煅烧与硫化条件下磨耗特性[J]. 化工学报, 2019, 70(8): 3086-3093

CAI Runxia, HUANG Yiqun, CHENG Lu, LI Dongfang, JEON Chung-hwan, YANG Hairui, LYU Junfu, ZHANG Man. Attrition of limestone during fluidized bed calcination and sulfation[J]. CIESC Journal, 2019, 70(8): 3086-3093
蔡润夏, 黄逸群, 程璐, 李东方, JEON Chung-hwan, 杨海瑞, 吕俊复, 张缦. 石灰石煅烧与硫化条件下磨耗特性[J]. 化工学报, 2019, 70(8): 3086-3093 DOI： 10.11949/0438-1157.20190335.

CAI Runxia, HUANG Yiqun, CHENG Lu, LI Dongfang, JEON Chung-hwan, YANG Hairui, LYU Junfu, ZHANG Man. Attrition of limestone during fluidized bed calcination and sulfation[J]. CIESC Journal, 2019, 70(8): 3086-3093 DOI： 10.11949/0438-1157.20190335.

摘要

石灰石磨耗特性对于循环流化床物料平衡和脱硫效率有重要影响。利用鼓泡床磨耗实验台，系统地研究了不同煅烧与硫化条件下，粒径、温度和SO

浓度对石灰石及其脱硫产物的磨耗速率的影响。实验结果表明，硫化反应会显著降低石灰石的磨耗

速率，延迟到达稳定磨耗的时间；当硫化反应达到慢反应区时，脱硫产物磨耗速率趋于稳定。磨耗可以剥离颗粒表层CaSO

，从而提高脱硫剂转化率。相同反应条件下，脱硫产物钙转化率越高，石灰石磨耗速率越低。最后利用现有文献数据分析并验证了石灰石磨耗模型，能够较好地反映不同粒径石灰石的磨耗速率的差异。

Abstract

Attrition characteristics of limestone has a significant effect on material balance and SO

capture efficiency in circulating fluidized beds. A bubbling reactor system

equipped with a particle separation apparatus and mass spectrum analyzer

was used to investigate the mutual influence between the calcination and sulfation reactions and the limestone attrition under different conditions. The results showed that sulfation reaction would be significantly reduced the attrition rate

delaying the time for reaching to the stable attrition rate. As the sulfation reaction progressed

the outer surface layer of a CaO particle was gradually covered by CaSO

. After the initial fast reaction finished

the attrition rates of limestone tended to be stable. Attrition would remove the impervious sulfate layers and enhance the sulfation conversion. Besides

the attrition rate decreased with the increasing sulfation conversion at the same reaction condition. Finally

using the existing literature data to analyze and verify the limestone attrition model

it can better reflect the difference in attrition rate of limestone with different particle sizes.

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references

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