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富氧气氛下循环流化床煤燃烧试验研究 被引量：12

Experimental Study on Coal Combustion in a Circulating Fluidized Bed Test-Facility Under Oxygen-Enriched Atmosphere
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摘要 在O2/CO2气氛和O2/N2气氛下,对氧浓度为2100～3500的循环流化床进行了煤燃烧的试验研究,比较了不同气氛下的煤燃烧特性和炉内温度分布以及NOx、NO2的排放规律和脱硫效率.试验显示富氧气氛下煤能够稳定燃烧,循环回路通畅;给煤量一定,随着试验气氛中氧含量的增加,燃烧效率逐渐增高.O2/CO2气氛下的燃烧效率略低于相同氧含量的O2/N2气氛下的燃烧效率;随着试验气氛中氧含量的增加,NOx排放量增加,SO2排放量略有减小,石灰石脱硫效率略有提高. Coal combustion under O2/CO2 or O2/N2 atmosphere with different oxygen contents was experimented in a circulating fluidized bed test-facility. Combustion characteristics, temperature distribution, NOx, SO2 emission characteristics and desulfuration efficiency under different atmospheres were compared. Coal combustion was stable under oxygen-enriched atmosphere and circuit was proper. Combustion efficiency increased gradually as oxygen content increased for fixed coal feeding. Combustion efficiency under O2/CO2 atmosphere was a little lower than that under O2/N2 atmosphere with the same oxygen content. As oxygen content increased, NOx emission was increased, SO2 emission was decreased and the desulfuration efficiency was increased a little.
作者 毛玉如 方梦祥 骆仲泱 岑可法
机构地区 中国环境科学研究院 浙江大学能源洁净利用与环境工程教育部重点实验室
出处 《燃烧科学与技术》 EI CAS CSCD 北大核心 2005年第2期188-191,共4页 Journal of Combustion Science and Technology
关键词 循环流化床 富氧气氛 NOx 脱硫效率 Coal combustion Desulfurization Gas emissions Nitrogen oxides Oxygen Sulfur dioxide Temperature distribution
分类号 X701.3 [环境科学与工程—环境工程]
  • 相关文献

参考文献8

  • 1Wolsky Alan M, Daniels Edward J, Jody Bassam J. Recovering CO2 from large- and medium-size stationary combustors [J]. J Air Waste Manage Assoc, 1991,41:449-454.
  • 2毛玉如,方梦祥,王勤辉,吴学成,骆仲泱,倪明江,岑可法.O_2/CO_2气氛下循环流化床煤燃烧污染物排放的试验研究[J].动力工程,2004,24(3):411-415. 被引量：32
  • 3Kimura N, Omata K, Kiga T, et al. The characteristics of pulverized coal combustion in O2/CO2 mixtures for CO2 recovery [J]. Energy Convers Mgmt, 1995, 36 (6-9):805-408.
  • 4Hirma T, Hosoda H, Azuma N, et al. Drastic reduction of Nox and N2O emissions from BFBC of coal by means of CO2/O2 combustion: Effects of fuel gas recycle and coal type [A]. In: International Symposium of Engineering Foundation Fluidization Ⅸ [C]. USA, 1998.
  • 5Andries J, Becht J G M, Hoppesteyn P D J. Pressurized fluidized bed combustion and gasification of coal using flue gas recirculation and oxygen injection [J]. Energy Convers Mgmt, 1997, 38: 117-122.
  • 6Okawa M, Kimura N, Kiga T, et al. The characteristic of pulverized coal combustion in the system of O2/CO2 combustion for CO2 recovery [A]. In: First Asia-Pacific Conference on Combustion [C]. 1997. 543-546.
  • 7Okazaki K, Ando T. Nox reduction mechanism in coal combustion with recycled CO2 [J]. Energy, 1997,22 (2-3):207-215.
  • 8Hayashi J I, Hirama T, Okawa R, et al. Kinetic relationship between NO/N2O reduction and O2 consumption during flue-gas recycling coal combustion in a bubbling fluidizedbed[J]. Fuel, 2002,81:1179-1188.

二级参考文献18

  • 1Jianrong QIU, Xiaoping ZHANG,Xuewen DONG, et al. SO2 emission during coal combustion in O2/CO2 combustion cycle. 1^st U S China Symposium on CO2 Emission Control Science Technology[C]. Hangzhou, China. 2001(8) :22-24.
  • 2Alan M,Wolsky, Edward J,Daniels, Bassam J Jody. Recovering CO2 from large- and medium-size stationary combustors[J].J Air Waste Manage Assoc. 1991 ,(41):449-454.
  • 3Hirma T, H Hosoda, N Azuma, et al. Drastic reduction of NOx and N2O emissions from BFBC of coal by means of CO2/O2 combustion: effects of fuel gas recycle and coal type[C]. International Symposium of Engineering Foundation FLUIDIZATION IX. USA,1998.
  • 4Andries J, Becht JGM, Hoppesteyn Becht. Pressurized fluidized bed combustion and gasification of coal using flue gas reeirculation and oxygen injection [J]. Energy Cnnvers Mgmt. 1997(38):117-122.
  • 5Croiset E, Thambimuthu K, Palmer A. Coal combustion in O2/CO2 mixtures compares with air[J]. Canadian Journal of Chemical Engineering. 2000.78 ( 2 ), 402 - 407.
  • 6Natio Y Hu, S , Kobayashi N, et al. CO2, NOx and SOz emissions from the combustion of coal with high oxygen concentration gases[J].Fuel, 2000(79) : 1925 - 1932.
  • 7Okawa M, Kimura N, Kiga T, et al. The characteristic of pulverized coal combustion in the system of O2/CO2 combusition for CO2 recovery [C]. ASPACC, 1997, 543 - 546.
  • 8Okazaki K, Ando T. NOx reduction mechanism in coal combustion with recycled CO2[J]. Energy, 1997,22(2/3):207-215.
  • 9Hayashi JI, Hirama T, Okawa R, 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):1179-1188.
  • 10Alan M,Wolsky, Edward J,Daniels, Bassam J. Jody. Recovering CO2 from large- and medium-size stationary combustors[J].J Air Waste Manage Assoc, 1991, (41):449-454.

共引文献31

同被引文献123

引证文献12

二级引证文献93

燃烧科学与技术
2005年 第2期

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