|本期目录/Table of Contents|

[1]王卓智,孙 锐,袁 皓,等.煤基焦炭氧化过程中表面化学结构的变化规律[J].燃烧科学与技术,2017,(05):418-423.[doi:10.11715/rskxjs.R201703019]
 Wang Zhuozhi,Sun Rui,Yuan Hao,et al.Variation of Coal Char Surface Chemical StructureDuring Oxidation Process[J].Journal of Combustion Science and Technology,2017,(05):418-423.[doi:10.11715/rskxjs.R201703019]
点击复制

煤基焦炭氧化过程中表面化学结构的变化规律()
分享到:

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

卷:
期数:
2017年05
页码:
418-423
栏目:
出版日期:
2017-10-15

文章信息/Info

Title:
Variation of Coal Char Surface Chemical Structure During Oxidation Process
作者:
王卓智1孙 锐1袁 皓2张兴州1李昱澎1孙绍增1
1. 哈尔滨工业大学能源科学与工程学院,哈尔滨 150000; 2. 中国船舶重工集团公司规划发展战略研究中心,北京 163318
Author(s):
Wang Zhuozhi1Sun Rui1Yuan Hao2Zhang Xingzhou1Li Yupeng1Sun Shaozeng1
1.School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150000,China; 2.Planning and Development Strategy Research Center,China Shipbuilding Industry Corporation, Beijing 163318,China
关键词:
焦炭表面复合物官能团活性位
Keywords:
charsurface complexesfunctional groupactive site
分类号:
TQ534.9
DOI:
10.11715/rskxjs.R201703019
文献标志码:
A
摘要:
选择一种典型烟煤煤焦作为研究对象,将焦炭反应至燃尽程度为0.21、0.34、0.40、0.53 和0.63 时,制 得实验样品.应用高温程序脱附(TPD)和傅里叶变换红外光谱(FT-IR)两种测试手段,获得各转化率下煤焦表面 复合物的存在形式和演化规律.研究表明:焦炭氧化过程中,表面活性位的数量随反应程度的加深而逐渐减少; 煤焦表面含氧复合物化学结构主要为羟基、羧基、醚、醌、内酯和酸酐;随着TPD 反应温度的升高,酸酐、内 酯和醌脱附产生CO,醚和醌脱附产生CO2.
Abstract:
A typical Chinese coal was employed for this research,and the char was oxidized to five conversion degrees(0.21,0.34,0.40,0.53 and 0.63).With the application of high temperature programmed desorption( TPD)and Fourier transform infrared spectroscopy(FT-IR),the chemical structure of surface complexes on different samples was investigated.Results showed that in the oxidation process,the number of active sites on particle surface decreased with the increase of conversion ratio.The specific chemicals of oxygen-containing complexes on particle surface are hydroxyl,carboxyl,ether,quinone,lactone and anhydride.Anhydride,lactone and quinone were the precursors of CO,and ether and quinone were the precursors of CO2.

相似文献/References:

[1]张秀霞,周志军,周俊虎,等. 煤粉再燃中煤焦异相还原NO 机理的量化研究[J].燃烧科学与技术,2011,(02):155.
 ZHANG Xiu-xia,ZHOU Zhi-jun,ZHOU Jun-hu,et al. A Quantum Chemistry Study of Heterogeneous Reduction Mechanisms ofNO on the Surface of Char During Pulverized Coal Reburning[J].Journal of Combustion Science and Technology,2011,(05):155.
[2]周志军,陈瑶姬,杨卫娟,等. 无烟煤焦炭对NO 的还原率[J].燃烧科学与技术,2011,(06):477.
 ZHOU Zhi-jun,CHEN Yao-ji,YANG Wei-juan,et al. Anthracite-Char Activities to NO Reduction[J].Journal of Combustion Science and Technology,2011,(05):477.
[3]柳朝晖,刘迎晖,周英彪,等.炭燃尽过程中结构和辐射特性的模化与分析[J].燃烧科学与技术,1996,(04):393.
 The Correlation of Structure and Radiative Properties of Burning Char: Modeling and Analysis[J].Journal of Combustion Science and Technology,1996,(05):393.

备注/Memo

备注/Memo:
收稿日期:2017-03-20. 基金项目:国家自然科学基金资助项目(51476046;51536002). 作者简介:王卓智(1988— ),男,博士研究生,windowsxxpp@126.com. 通讯作者:孙 锐,男,博士,教授,sunsr@hit.edu.cn.
更新日期/Last Update: