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[1]沈锋华,张保华,刘 晶,等.煤气化过程砷释放的在线监测及动力学特性[J].燃烧科学与技术,2018,(02):165-169.[doi:10.11715/rskxjs.R201704013]
 Shen Fenghua,Zhang Baohua,Liu Jing,et al.On-Line Analysis and Kinetics of Arsenic Release During Coal Gasification[J].Journal of Combustion Science and Technology,2018,(02):165-169.[doi:10.11715/rskxjs.R201704013]
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煤气化过程砷释放的在线监测及动力学特性()
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《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

卷:
期数:
2018年02
页码:
165-169
栏目:
出版日期:
2018-04-15

文章信息/Info

Title:
On-Line Analysis and Kinetics of Arsenic Release During Coal Gasification
文章编号:
1006-8740(2018)02-0165-05
作者:
沈锋华1张保华2刘 晶1张 振1张志潮1
1. 华中科技大学煤燃烧国家重点实验室,武汉 430074;2. 广东韶能集团股份有限公司,韶关 512026
Author(s):
Shen Fenghua1Zhang Baohua2Liu Jing1Zhang Zhen1Zhang Zhichao1
1.State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China;2.Guangdong Shaoneng Group Company Limited,Shaoguan 512026,China
关键词:
释放动力学在线监测煤气化
Keywords:
arsenicrelease kineticson-line analysiscoal gasification
分类号:
TK16
DOI:
10.11715/rskxjs.R201704013
文献标志码:
A
摘要:
采用烟气痕量元素在线监测方法研究了煤气化过程中砷的释放动力学特性.该方法基于ICP-OES 技术,用于连续定量测量烟气中痕量元素的瞬时质量浓度.烟气中砷的质量浓度随反应温度的改变发生明显变化,表明温度对砷的迁移转化有显著影响.根据在线监测结果求取砷的释放速率,建立煤气化过程中砷释放的动力学方程,并包含温度的影响.采用热力学方法研究了煤气化过程中砷的形态和分布,砷可与飞灰中的CaO 反应生成Ca(AsO2)2,使砷由气相迁移到固相中.
Abstract:
The kinetic behavior of arsenic release during coal gasification was investigated by applying an on-line analysis system of trace elements in flue gas.This system is based on inductively coupled plasma optical emission spectroscopy(ICP-OES)and developed to measure temporal mass concentrations of trace element in flue gas quantitatively and continuously.Obvious variation of arsenic mass concentration in flue gas was observed during coal gasification,indicating strong influence of temperature on arsenic release.Based on the results of on-line analysis,the release rate of arsenic during coal gasification was obtained and the kenitic law including the influence of temperature was determined.Thermodynamic calculation was performed to identify the forms and distribution of arsenic in vapor and solid phases during coal gasification.The gaseous arsenic species can react with CaO to form solid Ca(AsO2)2.

相似文献/References:

[1]郭欣,郑楚光,贾小红.煤飞灰中砷的形态特性[J].燃烧科学与技术,2004,(04):299.
 Mobility of Arsenic in Coal Fly Ash of Different Particle Size[J].Journal of Combustion Science and Technology,2004,(02):299.

备注/Memo

备注/Memo:
收稿日期:2017-04-13. 基金项目:国家重点基础研究发展计划(973 计划)资助项目(2014CB238904);国家自然科学基金资助项目(51606078);湖北省自然科 学基金资助项目(2015CFA046). 作者简介:沈锋华(1987— ),男,博士,fhshen@163.com. 通讯作者:刘 晶,女,博士,教授,liujing27@mail.hust.edu.cn.
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