O2/CO2燃烧条件下NO2还原特性的实验研究

王鹏乾; 王长安; 杜勇博; 张龙飞; 车得福

doi:10.7652/xjtuxb201705003

您当前的位置：

首页 >

文章列表页 >

O₂/CO₂燃烧条件下NO₂还原特性的实验研究

更新时间：2025-07-09

- O₂/CO₂燃烧条件下NO₂还原特性的实验研究
- Experimental Investigation on the NO₂ Reduction Property under O₂/CO₂ Combustion Condition
- 西安交通大学学报 2017年51卷第5期页码：16-22+141
- 作者机构：
  
  西安交通大学动力工程多相流国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
  
  : 2016-07-28。作者简介: 王鹏乾(1992—),男,博士生;王长安(通信作者),男,副教授。基金项目: 国家自然科学基金资助项目(51506163);中央高校基本科研业务费专项资金资助项目(xjj2014041)
- DOI：10.7652/xjtuxb201705003
  中图分类号： TK16
- 网络首发：2017-05-10，
  
  纸质出版：2017
- 稿件说明：
移动端阅览
王鹏乾, 王长安, 杜勇博, 等. O₂/CO₂燃烧条件下NO₂还原特性的实验研究[J]. 西安交通大学学报, 2017,51(5):16-22+141. DOI: 10.7652/xjtuxb201705003.

Experimental Investigation on the NO₂ Reduction Property under O₂/CO₂ Combustion Condition[J]. 2017, 51(5): 16-22+141. DOI: 10.7652/xjtuxb201705003.
王鹏乾, 王长安, 杜勇博, 等. O₂/CO₂燃烧条件下NO₂还原特性的实验研究[J]. 西安交通大学学报, 2017,51(5):16-22+141. DOI: 10.7652/xjtuxb201705003. DOI：

Experimental Investigation on the NO₂ Reduction Property under O₂/CO₂ Combustion Condition[J]. 2017, 51(5): 16-22+141. DOI: 10.7652/xjtuxb201705003. DOI：

摘要

为探究O

/CO

燃烧条件下NO

的还原特性

利用固定床反应实验系统

研究了温度、矿物质、灰分以及反应气氛变化对NO

还原行为的影响规律与作用机理。实验结果表明:NO

的还原率随反应温度升高而增大

当反应温度大于873 K时

还原反应显著加快; 反应温度为1 073 K时

还原率达到90%以上。煤灰中主要的矿物质成分对NO

还原过程表现出催化促进作用

相应矿物质催化NO

还原的活性顺序为Fe

>MgO>CaO>Al

>Na

>SiO

。准东煤灰中活性矿物质成分含量较高

煤灰对NO

还原的催化活性顺序为五彩湾煤灰>天池煤灰>灵新煤灰。此外

/CO

燃烧气氛中CO体积分数的增加会促进NO

的还原

高体积分数的CO

对NO

的还原有明显的促进作用

而O

体积分数的增加会在一定程度上抑制NO

的还原。动力学分析结果表明

/CO

燃烧中局部高体积分数CO降低了NO

还原的表观活化能

从而能够促进NO

的还原。

Abstract

The influences of reaction temperature

ash

minerals and reaction atmosphere on the NO

reduction behavior were investigated in a fixed bed reaction system to explore the mechanism of NO

reduction under O

/CO

combustion condition. Experimenta

l results indicate that NO

reduction rate increases with reaction temperature. When the reaction temperature is above 873 K

decomposition is significantly accelerated

and the NO

reduction rate reaches 90% at 1 073 K. The main minerals in coal ash have catalytic effects on NO

reduction

and their catalytic activities on NO

reduction are as follows: Fe

>MgO>CaO>Al

>Na

>SiO

. Due to the high active mineral contents in Zhundong coal ash

the catalytic activities of the ashes are as follows: WCW ash>TC ash>LX ash. In addition

the increase of CO concentration in the reaction atmosphere can promote NO

reduction

and high concentration of CO

also has obvious catalysis on NO

reduction. While the increase of O

concentration shows an inhibition effect on NO

reduction to a certain extent. Dynamic analysis indicates that CO can reduce the apparent activation energy of NO

reduction and hence promote NO

reduction.

关键词

Keywords

references

车得福. 煤氮热变迁与氮氧化物生成 [M]. 西安: 西安交通大学出版社, 2013: 1-3.

HU X, LI X, LUO G, et al. Homogeneous and heterogeneous contributions of CO2, and recycled NO to NO emission difference between air and oxy-coal combustion [J]. Fuel, 2016, 163: 1-7.

LIU H, OKAZAKI K. Simultaneous easy CO2 recovery and drastic reduction of SOx and NOx in O2/CO2 coal combustion with heat recirculation [J]. Fuel, 2003, 82(11): 1427-1436.

HIRAMA T, OKAWA R, TANIGUCHI M, et al. Kinetic relationship between NO/N2O reduction and O2 consumption during flue-gas recycling coal combustion in a bubbling fluidized-bed [J]. Fuel, 2002, 81(9): 1179-1188.

WANG C, DU Y, CHE D. Investigation on the NO reduction with coal char and high concentration CO during oxy-fuel combustion [J]. Energy Fuels, 2012, 26(12): 7367-7377.

WANG C, DU Y, CHE D. Study on N2O reduction with synthetic coal char and high concentration CO during oxy-fuel combustion [J]. Proceedings of the Combustion Institute, 2015, 35(2): 2323-2330.

曹曼曼, 李志军, 刘磊, 等. 不同还原剂对稀燃NOx催化转化器转化效率的影响 [J]. 西安交通大学学报, 2015, 49(1): 34-39.

CAO Manman, LI Zhijun, LIU Lei, et al. Influence of reducing agent types on conversion efficiency of lean NOx trap [J]. Journal of Xi'an Jiaotong University, 2015, 49(1): 34-39.

潘华, 宋华丰. Mn改性Fe/H-beta催化剂的低温催化分解NOx的研究 [J]. 西安交通大学学报, 2012, 46(1): 131-134.

PAN Hua, SONG Huafeng. Catalytic performance of Fe/H-beta catalyst modified by Mn for NOx decomposition at low temperature [J]. Journal of Xi'an Jiaotong University, 2012, 46(1): 131-134.

CHEN L, YONG S Z, GHONIEM A F. Oxy-fuel combustion of pulverized coal: characterization, fundamentals, stabilization and CFD modeling [J]. Progress in Energy and Combustion Science, 2012, 38(2): 156-214.

BUHRE B J P, ELLIOTT L K, SHENG C D, et al. Oxy-fuel combustion technology for coal-fired power generation [J]. Progress in Energy and Combustion Science, 2005, 31(4): 283-307.

樊越胜, 邹峥, 高巨宝, 等. 富氧气氛中煤粉燃烧特性改善的实验研究 [J]. 西安交通大学学报, 2006, 40(1): 18-21.

FAN Yuesheng, ZOU Zheng, GAO Jubao, et al. Experimental research of rich oxygen content on improving combustion characteristics of pulverized coal [J]. Journal of Xi'an Jiaotong University, 2006, 40(1): 18-21.

NDIBE C, SPÖRL R, MAIER J, et al. Experimental study of NO and NO2, formation in a PF oxy-fuel firing system [J]. Fuel, 2013, 107(9): 749-756.

MALLET C, AHO M, HÄMÄLÄINEN J, et al. Formation of NO, NO2, and N2O from Gardanne lignite and its char under pressurized conditions [J]. Journal of Nuclear Medicine, 1997, 36(4): 657-669.

邱忠, 梁进林. 循环流化床锅炉燃烧新疆准东五彩湾煤的对策探讨 [J]. 应用能源技术, 2012(12): 16-19.

QIU Zhong, LIANG Jinlin. Circulating fluidized bed boiler burning Xinjiang Wucaiwan area in Zhundong coal measures [J]. Applied Energy Technology, 2012(12): 16-19.

GUERRERO M, MILLERA A, ALZUETA M U, et al. Experimental and kinetic study at high temperatures of the NO reduction over eucalyptus char produced at different heating rates [J]. Energy Fuels, 2011, 25(3): 1024-1033.

黄建彬. 工业气体手册 [M]. 北京: 化学工业出版社, 2002: 139-140.

约斯. Matheson气体数据手册 [M]. 北京: 化学工业出版社, 2003: 597-599.

王长安, 车得福. O2/CO2燃烧技术研究进展: 1 燃烧与传热特性 [J]. 热力发电, 2011, 40(5): 10-14.

WANG Chang'an, CHE Defu. Progress in research of O2/CO2 combustion technology: I Combustion and heat transfer behavior [J]. Thermal Power Generation, 2011, 40(5): 10-14.[19] 张媛, 张海亮, 蒋雪冬, 等. 烟煤与生物质秸秆共气化反应动力学研究 [J]. 西安交通大学学报, 2011, 45(8): 123-128.

ZHANG Yuan, ZHANG Hailiang, JIANG Xuedong, et al. Reactivity and kinetics of bitumite and wheat straw blends during co-gasification [J]. Journal of Xi'an Jiaotong University, 2011, 45(8): 123-128.

AARNA I, SUUBERG E M. The role of carbon monoxide in the NO-carbon reaction [J]. Energy Fuels, 1999, 13(6): 1145-1153.

ABIÁN M, MILLERA A, BILBAO R, et al. Interaction of soot-SO2: experimental and kinetic analysis [J]. Combustion Science Technology, 2016, 188(4/5): 482-491.

WANG X, SI J, TAN H, et al. Kinetics investigation on the reduction of NO using straw char based on physicochemical characterization [J]. Bioresource Technology, 2011, 102(16): 7401-7406.

陈敏恒. 化工原理: 上册 [M]. 北京: 化学工业出版社, 2006: 119-120.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

水洗对准东煤煤质特性影响的实验研究

准东煤旋风燃烧的数值模拟

超临界二氧化碳向心透平轮背间隙内风阻损失及流动特性研究

语义区分和子图整合驱动的知识图谱表示学习方法

结构-语义-残差协同的图像压缩框架：面向隐私保护与高保真重建