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Comparison of combustion characteristics of petroleum
coke and coal in one-dimensional furnace |
| Qulan ZHOU,Qinxin ZHAO,Guangjie ZHOU,Huiqing WANG,Tongmo XU,Shien HUI, |
| State Key Laboratory
of Multiphase Flow of Power Engineering, Xi’an Jiaotong University,
Xi’an 710049, China; |
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Abstract The effect of primary air fraction f1, outer secondary air swirl strength and excess oxygen coefficient on the combustion characteristics of petroleum coke, Hejin lean coal and Shenmu soft coal are researched on a one-dimensional furnace using a dual channel swirl burner. The results show that with the increase in primary air fraction f1, the NOx emission concentrations of both Hejin lean coal and petroleum coke increase, and the combustion worsens in the earlier stage, but the burn-out rate of Shenmu soft coal is improved. The NOx emission concentration obtains a minimum value with an increase in f1. The ignition and burn-out rate of petroleum coke and Shenmu soft coal are optimal when Ωdl is minimum and Ωdl=0.87, respectively. However, both the NOx emission concentration of petroleum coke and Shenmu soft coal are minimum when Ωdl=1.08. The increase in excess oxygen coefficient delays the ignition of petroleum coke, worsens the combustion condition and increases the NOx emission concentration, but it greatly decreases the NOx emission concentration of Shenmu soft coal.
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| Keywords
petroleum coke
Shenmu soft coal
Hejin lean coal
combustion characteristics
experimental research
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Issue Date: 05 September 2010
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Zhou Jun. The experimental research of combustion characteristicof petroleum coke. Dissertation for theDoctoral Degree, Beijing: Tsinghua Univercity, 2006
|
|
Kocaefe D, Charette A, Castonguay L. Green coke pyrolysis: investigationof simultaneous changes in gas and solid phases. Fuel, 1995, 74(6): 791―799
doi: 10.1016/0016-2361(95)00022-W
|
|
Wu Zhengshun, Zhang Chunlin, Yuan Guicheng. The characteristic researchon pollutant emission of high-sulfur petroleum coke. Environment Science and Technology, 2003, 26(2): 4―5 (in Chinese)
|
|
Luo Yonggang, Yang Yaping, Cai Song. The burning pollutant emission characteristicresearch burning admixture of petroleum coke in pulverized coal boiler. Environment Science and Technology, 2001, 14(5): 9―12 (in Chinese)
|
|
Wang Wenxuan, Zhao Shitie, Zhao Changsui. The combustion characteristicresearch of petroleum coke. Boiler Technology, 2005, 36(4): 39―42, 53 (in Chinese)
|
|
Wang Wenxuan, Wang Fengjun, Han Song. The SO2 emissioncharacteristic research on hybrid combustion of coal and petroleumcoke in CFB. Combustion Science and Technology, 2003, 9(6): 506―510 (in Chinese)
|
|
Yang Yaping, Cai Song. The characteristicresearch on burning admixture of petroleum coke and soft coal. Thermal Energy and Power Engineering, 2001,(6): 612―614, 631 (inChinese)
|
|
Ministry of EnvironmentalProtection of the People’s Republic of China and General Administrationof Quality Supervision, Inspection and Quarantine of the People’sRepublic of China. GB 13223-2003 Fossil-fuelPower Plant Atmospheric Pollutant Emission Standard. Beijing: China Standard PublishingHouse, 2003 (in Chinese)
|
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Hou Fanjun. The calculation and conversion of fossil-fuel power plantatmospheric pollutant emission concentration. Shandong Power Technology, 2004, (4): 3―4,14 (in Chinese)
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