Influence of Na and Ca on the emission of NOx during coal combustion

被引：44
作者：
Zhao, ZB
Li, W
Qiu, JS
Wang, XZ
Li, BQ
机构：
[1] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China
[2] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Carbon Res Lab, Dalian 116012, Peoples R China
来源：
FUEL | 2006年 / 85卷 / 5-6期
基金：
中国国家自然科学基金;
关键词：
NOx; coal; Na; Ca; combustion;
D O I：
10.1016/j.fuel.2005.09.001
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Temperature programmed combustion of a Chinese brown coal before and after demineralization was carried out in a tubular quartz fixed bed reactor. The evolution of NOx during coal combustion has been investigated with an aim of figuring out the influence of indigenous mineral matter in coal as well as the loaded alkali and alkaline earth metals (Na, Ca). The results show that the mineral matter in the coal suppresses the conversion of fuel-N to NOx, and at the same time, significantly promotes the coal combustion process. The added Na exhibits high catalytic activity for the coal combustion and NOx reduction. In the case of Ca, its effect on the combustion of coal is ignorable but the emission level of NOx increases distinctively due to the presence of Ca. The formation of N-Ca intermediates that preferentially direct the conversion of fuel-N towards NOx during coal combustion is proposed and discussed. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：601 / 606
页数：6
相关论文
共 50 条
  • [21] The Emission Characteristic of PAHs during Coal Combustion in a Fluidized Bed Combustor
    Qin, L.
    Han, J.
    He, X.
    Lu, Q.
    ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, 2014, 36 (02) : 212 - 221
  • [22] Catalytic effect of Na-Fe on NO-char reaction and NO emission during coal char combustion
    Zhao, ZB
    Li, W
    Qiu, JS
    Li, BQ
    FUEL, 2002, 81 (18) : 2343 - 2348
  • [23] Experimental study on the combustion behavior and NOx emission during the co-combustion of combustible industrial solid wastes
    Xu, Hao
    Li, Lin
    Tang, Wu
    Sun, Zhenkun
    Chen, Yuqing
    Sun, Guang
    Gu, Quanbin
    Duan, Lunbo
    JOURNAL OF THE ENERGY INSTITUTE, 2023, 106
  • [24] Emission Characteristics of NOx and SO2 during the Combustion of Antibiotic Mycelial Residue
    Ge, Yaxin
    Zhang, Guangyi
    Zhang, Jianling
    Zhang, Wennan
    Cui, Lijie
    INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2022, 19 (03)
  • [25] INFLUENCE OF COKE BREEZE COMBUSTION CONDITIONS ON THE EMISSION OF NOx IN SINTERING PROCESS
    Su, Bo
    Wu, Sheng-li
    Zhang, Guo-liang
    Que, Zhi-gang
    Hou, Chao-gang
    6TH INTERNATIONAL SYMPOSIUM ON HIGH-TEMPERATURE METALLURGICAL PROCESSING, 2015, : 387 - 394
  • [26] LOW NOX COMBUSTION TECHNOLOGY IN PULVERIZED COAL COMBUSTION
    MAKINO, H
    KIMOTO, M
    KAGAKU KOGAKU RONBUNSHU, 1994, 20 (06) : 747 - 757
  • [27] Combustion effects and emission characteristics of SO2, CO, NOx and heavy metals during co-combustion of coal and dewatered sludge
    Yiying Jin
    Yangyang Li
    Fuqiang Liu
    Frontiers of Environmental Science & Engineering, 2016, 10 : 201 - 210
  • [28] The formation and emission mechanisms of NOx in crop straws and coal co-combustion fluidized-bed combustor
    Mang, Shihong
    Chen, Xiaochen
    Mang, Lei
    Yang, Haiping
    Wang, Xianhua
    Chen, Hanping
    PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON COAL COMBUSTION, 2007, : 446 - 452
  • [29] STUDY ON THE COMBUSTION AND NOX EMISSION CHARACTERISTICS OF LOW RANK COAL IN A CIRCULATING FLUIDIZED BED WITH POST-COMBUSTION
    Zhou, Tuo
    Lu, Qinggang
    Cao, Yong
    Wu, Guanglong
    Li, Shiyuan
    CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 2017, 95 (12) : 2333 - 2340
  • [30] Improvement of NOx formation model for pulverized coal combustion by increasing oxidation rate of HCN
    Zhang, Juwei
    Ito, Takamasa
    Okada, Takuya
    Oono, Emi
    Suda, Toshiyuku
    FUEL, 2013, 113 : 697 - 706
12345