|本期目录/Table of Contents|

[1]李泽华,等. 水蒸气对钙基CO2吸收剂煅烧-碳酸化反应的影响[J].燃烧科学与技术,2016,(04):311-316.[doi:DOI 10.11715/rskxjs.R201603031]
 Li Zehua,Yang Jingze,et al. Effect of Steam on Calcination-Carbonation Reactionsof Calcium-Based CO2 Sorbent[J].Journal of Combustion Science and Technology,2016,(04):311-316.[doi:DOI 10.11715/rskxjs.R201603031]
点击复制

 水蒸气对钙基CO2吸收剂煅烧-碳酸化反应的影响()
分享到:

《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

卷:
期数:
2016年04
页码:
311-316
栏目:
出版日期:
2016-08-15

文章信息/Info

Title:
 Effect of Steam on Calcination-Carbonation Reactions
of Calcium-Based CO2 Sorbent
作者:
 李泽华1 2杨竞择1牛少博1汪 印2姚 洪1
 1. 华中科技大学煤燃烧国家重点实验室,武汉 430074;
2. 中国科学院城市环境研究所,中国科学院城市污染物转化重点实验室,厦门 361021
Author(s):
 Li Zehua1 2Yang Jingze1Niu Shaobo1Wang Yin2Yao Hong1
 1.State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,
Wuhan 430074,China;2.Key Laboratory of Urban Pollutant Conversion,Institute of Urban Environment,
Chinese Academy of Sciences,Xiamen 361021,China
关键词:
 水蒸气CaCO3分解率换热量CaO活性
Keywords:
 steamCaCO3decomposition rateamount of heat-transferCaOreactivity
分类号:
TK16
DOI:
DOI 10.11715/rskxjs.R201603031
摘要:
 利用热重分析仪和固定床反应器分别研究了水蒸气对CaCO3 煅烧和CaO 碳酸化反应的影响,以及吸收剂
活性提升机理.结果表明:煅烧气氛中添加水蒸气或氮气可促进CaCO3的分解,且水蒸气促进程度更高,主要是因
为水蒸气导热系数高,气固换热量更大,传热效率更高.煅烧气氛中添加水蒸气或氮气都能提升煅烧产物CaO 的活
性,且氮气提升的程度更高,主要是因为氮气气氛下CaCO3颗粒烧结程度稍低.相比于纯CO2碳酸化气氛,碳酸化
气氛中添加水蒸气后,CaO 活性提升了近一倍.
Abstract:
 In this study,the effects of steam on CaCO3 decomposition and CaO carbonation reactions were investigated
by using a thermogravimetric apparatus and a fixed bed reactor.The mechanism of sorbent reactivity enhancement
was discussed.Introducing steam or N2 into calcination atmosphere promoted the decomposition rate of
CaCO3.The promotion extent by introducing steam is higher than by introducing N2.It was mainly due to the higher
thermal conductivity of steam.The amount of heat-transfer and the heat-transfer efficiency between steam and CaCO3
particle were higher than those of N2.Both introducing steam and N2 into calcination atmosphere enhanced the reactivity
of CaO product.The reactivity of CaO generated from N2 calcination atmosphere was higher than that from
steam atmosphere,which was due to the lower sintering of CaCO3 particle in N2 calcination atmosphere. Compared
with carbonation in pure CO2 atmosphere,the reactivity of CaO was nearly doubled after adding steam into CO2 carbonation
atmosphere.

相似文献/References:

[1]周俊虎,周 楷,杨卫娟,等. 镁在水蒸气中高温氧化的动力学特性[J].燃烧科学与技术,2010,(05):383.
 ZHOU Jun-hu,ZHOU Kai,YANG Wei-juan,et al. Kinetics of High Temperature Oxidation of Magnesium in Steam[J].Journal of Combustion Science and Technology,2010,(04):383.
[2]张 洪,施海艳,姬 莉,等. 煤粉中内在矿物对煤焦燃烧反应活性的影响[J].燃烧科学与技术,2010,(05):416.
 ZHANG Hong,SHI Hai-yan,JI Li,et al. Influence of Included Minerals on Combustion Reactivity of Chars[J].Journal of Combustion Science and Technology,2010,(04):416.
[3]吴 新,卓文钦,赵长遂. 燃煤飞灰中铁磁性物质及其形成机制[J].燃烧科学与技术,2010,(05):422.
 WU Xin,ZHUO Wen-qin,ZHAO Chang-sui. Ferromagnetic Substance in Coal-Fired Fly Ash and Its Formation Mechanism[J].Journal of Combustion Science and Technology,2010,(04):422.
[4]苟小龙,陈 正,孙文廷,等. 正庚烷/空气着火过程的多时间尺度模拟[J].燃烧科学与技术,2010,(05):452.
 GOU Xiao-long,CHEN Zheng,SUN Wen-ting,et al. Multi-Time Scale Simulation of Homogeneous Ignition of n-Heptane/Air[J].Journal of Combustion Science and Technology,2010,(04):452.
[5]王春华,仲兆平,鄂加强. 基于LS-SVM的燃烧状况智能诊断[J].燃烧科学与技术,2010,(05):462.
 WANG Chun-hua,ZHONG Zhao-ping,E Jia-qiang. Intelligent Diagnosis of Combustion Based on LS-SVM[J].Journal of Combustion Science and Technology,2010,(04):462.
[6]涂 然,雷 佼,王 彦,等. 利用压力相似预测高原低压环境小尺寸 池火燃烧速率的变化特性[J].燃烧科学与技术,2010,(05):467.
 TU Ran,LEI Jiao,WANG Yan,et al. Small Scale Pool Fire Burning Rate Under Reduced Atmospheric Pressure Using Pressure Modeling[J].Journal of Combustion Science and Technology,2010,(04):467.
[7]郭 鹏,陈 正. NOx对甲烷/空气着火过程的影响[J].燃烧科学与技术,2010,(05):472.
 GUO Peng,CHEN Zheng. Effects of NOx on the Ignition of Methane/Air Mixtures[J].Journal of Combustion Science and Technology,2010,(04):472.
[8]白云龙,王 志,帅石金,等. 缸内直喷汽油机喷雾、混合气形成和燃烧过程的 三维数值模拟[J].燃烧科学与技术,2010,(02):97.
 [J].Journal of Combustion Science and Technology,2010,(04):97.
[9]苗海燕,焦 琦,黄佐华,等. 稀释气对掺氢天然气层流预混燃烧燃烧速率的影响[J].燃烧科学与技术,2010,(02):104.
 MIAO Hai-yan,JIAO Qi,HUANG Zuo-hua,et al. Effect of Diluent Gas on Laminar Burning Velocity of Premixed Hydrogen Enriched Natural Gas and Air Mixtures[J].Journal of Combustion Science and Technology,2010,(04):104.
[10]唐君实,宋 蔷,徐小波,等. 改进的动力学模型对DPF 热再生过程的影响[J].燃烧科学与技术,2010,(02):111.
 TANG Jun-shi,SONG Qiang,XU Xiao-bo,et al.Influence of Revised Kinetics Model on DPF’s Thermal Regeneration[J].Journal of Combustion Science and Technology,2010,(04):111.
[11]林 瑜,陈德珍. 大型脱硫塔喷淋段气液两相流动与传热的数值仿真及验证[J].燃烧科学与技术,2016,(01):1.[doi:10.11715/rskxjs.R201501006]
 Lin Yu,Chen Dezhen. Numerical Simulation and Verification of Gas-Liquid Two PhasesFlow and Heat Transfer in Spraying Zone of Large-ScaleDesulphurization Absorption Tower[J].Journal of Combustion Science and Technology,2016,(04):1.[doi:10.11715/rskxjs.R201501006]

备注/Memo

备注/Memo:
 作者简介:李泽华(1990— ),男,博士研究生,lizehua@hust.edu.cn.
通讯作者:姚 洪,男,博士,教授,hyao@hust.edu.cn.
更新日期/Last Update: