NOx reduction by potassium-containing coal briquettes.: Effect of NO2 concentration

被引:23
作者
García-García, A [1 ]
Illán-Gómez, MJ [1 ]
Linares-Solano, A [1 ]
de Lecea, CSM [1 ]
机构
[1] Univ Alicante, Dept Quim Inorgan, E-03080 Alicante, Spain
关键词
D O I
10.1021/ef980165h
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
The reactions of a potassium-containing bituminous coal briquette and the corresponding catalyst-free char with different NO/O-2 mixtures have been investigated at temperatures between 300 and 325 degrees C. The isothermal reactions have been followed by two techniques: thermogravimetry and gas chromatography + chemiluminescence analysis. A NO/NO2 mixture rich in NO2 results in a high carbon loss compared to that corresponding to the mixture poor in NO2. Despite that, NOx conversion is similar for both mixtures. The extra weight loss in the presence of a high concentration of NO2 is a consequence of NO2 reduction by carbon, producing NO and CO2 evolution.
引用
收藏
页码:499 / 505
页数:7
相关论文
共 31 条
[1]   A review of the kinetics of the nitric oxide carbon reaction [J].
Aarna, I ;
Suuberg, EM .
FUEL, 1997, 76 (06) :475-491
[2]  
ARTHUR JR, 1956, NATURE, V178, P4526
[3]  
BAILAR JC, 1973, COMPREHENSIVE INORGA, V2
[4]  
BARTEK JP, 1973, BIENN C CARB, P92
[5]  
CERFONTAIN M, 1986, THESIS U AMSTERDAM
[6]   GASIFICATION OF CELLULOSIC CHARS IN OXYGEN AND IN NITROGEN-OXIDES [J].
DEGROOT, WF ;
RICHARDS, GN .
CARBON, 1991, 29 (02) :179-183
[7]  
Durie R.A., 1991, The Science of Victorian brown coal: structure, properties, and consequences for utilization
[8]  
FURUSAWA T, 1980, INT CHEM ENG, V20, P239
[9]   Potassium-containing briquetted coal for the reduction of NO [J].
GarciaGarcia, A ;
IllanGomez, M ;
LinaresSolano, A ;
deLecea, CSM .
FUEL, 1997, 76 (06) :499-505
[10]   NO reduction by potassium-containing coal briquettes. Effect of mineral matter content and coal rank [J].
GarciaGarcia, A ;
ChinchonYepes, S ;
LinaresSolano, A ;
deLecea, CSM .
ENERGY & FUELS, 1997, 11 (02) :292-298