|本期目录/Table of Contents|

[1]罗浩东,张淑慧,张立强,等. 烟气调质过程中天然碱的碳酸化特性[J].燃烧科学与技术,2017,(02):147-152.[doi:DOI 10.11715/rskxjs.R201605009]
 Luo Haodong,Zhang Shuhui,Zhang Liqiang,et al. Carbonation Behavior of Trona During Flue Gas Conditioning Process[J].Journal of Combustion Science and Technology,2017,(02):147-152.[doi:DOI 10.11715/rskxjs.R201605009]
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 烟气调质过程中天然碱的碳酸化特性()
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《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

卷:
期数:
2017年02
页码:
147-152
栏目:
出版日期:
2017-04-15

文章信息/Info

Title:
 Carbonation Behavior of Trona During Flue Gas Conditioning Process
作者:
 罗浩东张淑慧张立强王志强崔 琳董 勇
 山东大学燃煤污染物减排国家工程实验室,山东省能源碳减排技术与资源化利用重点实验室,济南250061
Author(s):
 Luo HaodongZhang ShuhuiZhang LiqiangWang ZhiqiangCui LinDong Yong
 National Engineering Laboratory for Coal-Fired Pollutants Emission Reduction,Key Laboratory of Energy
Carbon Reduction and Resource Utilization of Shandong Province,Shandong University,Jinan 250061,China
关键词:
 天然碱烟气CO2碳酸化失活模型
Keywords:
 tronaflue gasCO2carbonationdeactivation model
分类号:
TQ531.9
DOI:
DOI 10.11715/rskxjs.R201605009
文献标志码:
A
摘要:
 在常压固定床反应实验台上,研究了烟气调质天然碱过程中天然碱的碳酸化特性,考察反应前后天然碱
表面形态的变化以及反应温度、CO2 和水分体积分数对天然碱碳酸化反应的影响,并借助失活模型对天然碱的碳
酸化过程进行了反应动力学模拟.结果表明:碳酸化反应后天然碱表面形态发生明显变化,反应后天然碱结构疏
松,内部孔隙增多;反应温度的降低提高了天然碱碳酸化的反应速率常数,使得天然碱的碳酸化反应加快,反应
温度分别为50,℃、60,℃和70,℃时,天然碱的转化率分别为 50%,、31%,和24%,;随着水分体积分数的增加天然
碱的转化率迅速增加,当水分体积分数为4%,时,天然碱的最高转化率仅为10%,,而当水分体积分数为20%,时,
最高转化率可达52%,;CO2体积分数的增加也显著提高了反应速率常数,促进碳酸化反应的进行;失活模型均能
较好地模拟天然碱的碳酸化过程,其相关系数均大于95%,.
Abstract:
 The carbonation behavior of trona during flue gas conditioning process was evaluated in a fixed-bed
reactor.The effect of temperature,CO2 and H2O on the conversion reaction was investigated,and the structural
change of trona particles was also considered.The results show that the structure varies as the carbonation reaction
proceeds.Trona particle is initially nonporous and then begins to crack.The conversion of trona to NaHCO3 increases
with the decrease of reaction temperature.In the case of 50,℃,60,℃ and 70,℃,the carbonation conversion
of trona is 50%,,31%, and 24%,,respectively.The conversion of trona increases with the increase of water
vapor.In the case of 4%, water content,the conversion is 10%,,while in the case of 20%,water content,the reaction
conversion reaches 52%,.The CO2 content has the same effect on carbonation reaction.The deactivation model
was used to explain the kinetics of the carbonation of trona.The model showed good agreement with the experimental
data obtained from the conversion reaction of trona to NaHCO3,with the average correlation coefficient of
0.95.

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备注/Memo

备注/Memo:
 收稿日期:2016-05-09.
基金项目:国家自然科学基金资助项目(51206097).
作者简介:罗浩东(1991— ),男,硕士,286885962@qq.com.
通讯作者:张立强,男,博士,讲师,zhlq@sdu.edu.cn.
更新日期/Last Update: