Computational Fluid Dynamics Modeling of NOx Reduction Mechanism in Oxy-Fuel Combustion

被引：46
|
作者：
Cao, Huali [1 ]
Sun, Shaozeng [1 ]
Liu, Yinghui [2 ]
Wall, Terry F. [2 ]
机构：
[1] Harbin Inst Technol, Combust Engn Res Inst, Harbin 150001, Peoples R China
[2] Univ Newcastle, Dept Chem Engn, Callaghan, NSW 2308, Australia
来源：
ENERGY & FUELS | 2010年 / 24卷 / 01期
关键词：
PULVERIZED COAL COMBUSTION; SO2; EMISSIONS; CO2; RECOVERY; RECYCLED-NOX; PF BURNERS; O-2/CO2; AIR; MIXTURES; GAS; TECHNOLOGY;
D O I：
10.1021/ef900524b
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：
Oxy-fuel combustion is a promising carbon capture technology in which both the conversion of fuel-N to NO and the reduction of recycled NO contribute to lowering of final NO exhausted from the coal combustion system. Combustion characteristics for both air and oxy-fuel conditions were numerically investigated in a pilot scale test facility for an Australian sub-bituminous coal. On the basis of De Soete's mechanism, the additional reactions for formation of fuel-NO and reduction of recycled NO were added into computational fluid dynamics (CFD) codes, using user-defined Functions (UDFs). The NOx predictions in air and oxy-fuel combustion were compared to experimental data. The NO emission in oxy-fuel condition is predicted to be significantly lower than that in air combustion, even without recycled NO. The effect of the nitrogen partitioning ratio between volatile and char on the NOx emission was also investigated.
引用
收藏
页码：131 / 135
页数：5
相关论文
共 50 条
  • [21] CFD (computational fluid dynamics) analysis of a novel reactor design using ion transport membranes for oxy-fuel combustion
    Ahmed, Pervez
    Habib, Mohamed A.
    Ben-Mansour, Rached
    Kirchen, Patrick
    Ghoniem, Ahmed F.
    ENERGY, 2014, 77 : 932 - 944
  • [22] Density functional theory on the mechanism of NO reduction by hydroxyl groups during oxy-fuel combustion
    Shiyuan, Li (lishiyuan@ustb.edu.cn), 2025, 302
  • [23] Experimental Study on NOx Reduction in Oxy-fuel Combustion Using Synthetic Coals with Pyridinic or Pyrrolic Nitrogen
    Wang, Chang'an
    Wang, Pengqian
    Zhao, Lin
    Du, Yongbo
    Che, Defu
    APPLIED SCIENCES-BASEL, 2018, 8 (12):
  • [24] Computational fluid dynamics simulation on oxy-fuel combustion performance of a multiple-burner furnace firing coking dry gas
    Yuan, Tianlin
    Wang, Chang'an
    Feng, Qinqin
    Sun, Yunlei
    Fan, Gaofeng
    Chen, Meijing
    Che, Defu
    APPLIED THERMAL ENGINEERING, 2024, 252
  • [25] Oxy-fuel Combustion of Estonian Oil Shale: Kinetics and Modeling
    Yoruk, Can Rustu
    Meriste, Tonis
    Trikkel, Andres
    Kuusik, Rein
    8TH TRONDHEIM CONFERENCE ON CO2 CAPTURE, TRANSPORT AND STORAGE, 2016, 86 : 124 - 133
  • [26] Oxy-Fuel Combustion Modeling: Performance of Global Reaction Mechanisms
    Hjartstam, Stefan
    Normann, Fredrik
    Andersson, Klas
    Johnsson, Filip
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2012, 51 (31) : 10327 - 10337
  • [27] NOx reburning in oxy-fuel combustion: A comparison between solid and gaseous fuels
    Normann, Fredrik
    Andersson, Klas
    Johnsson, Filip
    Leckner, Bo
    INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, 2011, 5 : S120 - S126
  • [28] Fundamental investigation of NOx formation during oxy-fuel combustion of pulverized coal
    Shaddix, Christopher R.
    Molina, Alejandro
    PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2011, 33 : 1723 - 1730
  • [29] Oxy-fuel combustion of coal. Studies on kinetics and mechanism of pressurized combustion
    Babinski, Piotr
    Tomaszewicz, Martyna
    Topolnicka, Teresa
    Sciazko, Marek
    Zuwala, Jaroslaw
    PRZEMYSL CHEMICZNY, 2015, 94 (04): : 450 - 456
  • [30] FUEL 238-Investigation of NOx destruction catalyzed by char oxidation in oxy-fuel combustion
    Tree, Dale R.
    Mackrory, Andrew J.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2008, 235
12345