Study on Combustion and Emission Performance of Oil Shale Mixed with Coal

Abstract:

In this paper, Huadian oil shale from Jilin Province of China was selected as the object of study. Firstly, the ignition temperature, complete combustion temperature, maximum mass loss rate, flammability index C and comprehensive combustion characteristic index S during the separate combustion of oil shale was measured , as well as during the combustion of oil shale mixed with coal, by using the thermo-gravimetric analytical method. Then, the impact of blending ratio on the combustion characteristic parameter was discussed, and conducted modeling for the oil shale blending combustion system was established with the steady-state simulation software program Aspen Plus. Finally, we obtained the exhaust gas temperature, volume flow of gases such as CO, CO2 and SO2, as well as their impacts on the operating conditions of the boiler during the mixing combustion under different excess air coefficients.

• Periodical: Applied Mechanics and Materials (Volume 521)
• Pages: 555-562
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.521.555
• Online since: February 2014
• Authors: Hai Rong Wang*, Xin Xin Li, Jian Bo Yan
• Keywords: CoAl, Co-Combustion, Combustion Characteristic, Emission Performance, Oil Shale

References

[1] J.M. Li, H.Y. Wang and Q. Zhao: Potential And Prospects on New Energy Sources In China[J]. Natural Gas Industry Vol. 28(1)(2008), pp.149-153, in Chinese.

[2] J.W. Ye, Y. Yang and M.Z. Xu: Oil Shale Utilization and Its Development Prospects[J]. China Resources Comprehensive Utilization Vol. 28(6)(2010), pp.21-23, in Chinese.

[3] B.A. Akash, J.O. Jaber: Characterization of shale oil as compared to crude oil and some refined petroleum products[J]. Energy Sources Vol. 25(12) (2003), pp.1171-1182.

DOI: 10.1080/00908310390233612

[4] X.M. Jiang, X.X. Han and Z.G. Cui: New technology for the comprehensive utilization of Chinese oil shale resources[J]. Energy Vol. 32(5) (2007), pp.772-777.

DOI: 10.1016/j.energy.2006.05.001

[5] A. Ots: Oil shale as a power fuel[J]. Oil Shale Vol. 22(4) (2005), pp.367-371.

DOI: 10.3176/oil.2005.4s.16

[6] B.Z. Sun: Theory and Experimental Investigation On Combustion Characteristics Of oil Shale and Semi-Coke Blends[D]. North China Electric Power University(2009), in Chinese.

[7] H. Arro, A. Prikk and T. Pihu: Calculation of qualitative and quantitative composition of Estonian oil shale and its combustion products. Part 1. Calculation on the basis of heating value[J]. Fuel Vol. 82(18) (2003), pp.2179-2195.

DOI: 10.1016/s0016-2361(03)00125-x

[8] X.M. Jiang, X.X. Han and Z.G. Cui: New technology for the comprehensive utilization of Chinese oil shale resources[J]. Energy Vol. 32(5) (2007), pp.772-777.

DOI: 10.1016/j.energy.2006.05.001

[9] A. Paist: New epoch in Estonian oil shale combustion technology[J]. Oil Shale Vol. 21(3) (2004), pp.181-182.

[10] M.V. Kök, M.R. Pamir: Comparative pyrolysis and combustion kinetics of oil shale[J]. Journal of Analytical and Applied Pyrolysis Vol. 55(2) (2000), pp.185-194.

DOI: 10.1016/s0165-2370(99)00096-0

[11] X.X. Han, X.M. Jiang and Z.G. Cui: Mathematical model of oil shale particle combustion[J]. Combustion Theory and Modelling Vol. 10(1) (2006), pp.145-154.

DOI: 10.1080/13647830500327616

[12] X.X. Han, X.M. Jiang and Z.G. Cui: Thermal analysis studies on combustion mechanism of oil shale[J]. J Therm Anal Calorim Vol. 84(3) (2006), pp.631-636.

DOI: 10.1007/s10973-005-7034-8

[13] X.M. Jiang, X.X. Han and Z.G. Cui: Progress and recent utilization trends in combustion of Chinese oil shale[J]. Progress in Energy and Combustion Science Vol. 33(6) (2007), pp.552-579.

DOI: 10.1016/j.pecs.2006.06.002

[14] B. Prabir, B. James and A. L. Mathias: Biomass co-firing options on the emission reduction and electricity generation costs in coal-fired power plants[J]. Renewable Energy Vol. 36(1) (2011), pp.282-288.

DOI: 10.1016/j.renene.2010.06.039

[15] W.S. Wang, J. Liu, B.W. Wang, et al: Numerical simulation on the NOx release characteristics during the combustion of poor-quality anthracite in supercritical boiler[J]. Journal of China Coal Society Vol. 37(2) (2012), pp.310-315, in Chinese.

[16] P.T. Williams, N. Ahmad: Influence of process conditions on the pyrolysis of Pakistani oil shale[J]. Fuel Vol. 78(6) (1999), pp.653-662.

DOI: 10.1016/s0016-2361(98)00190-2

[17] H.M. Xiao, X.Q. Ma and K. Liu: Co-combustion kinetics of sewage sludge with coal and coal gangue under different atmospheres[J]. Energy Conversion and Management Vol. 51(10) (2009) p.1976-(1980).

DOI: 10.1016/j.enconman.2010.02.030

[18] W. Doherty, A. Reynolds and D. Kennedy: The effect of air preheating in a biomass CFB gasifier using ASPEN Plus simulation[J]. Biomass and Bioenergy Vol. 33(9) (2009), pp.1158-1167.

DOI: 10.1016/j.biombioe.2009.05.004

[19] B.Z. Sun, Shi Lei, Z.R. Huang, Q. Wang, et al: Analysis on Temperature Character of CFB Bench When Co-combustion of Oil Shale and Its Semi-Coke[J]. Energy Procedia Vol. 17(2012), pp.1513-1519.

DOI: 10.1016/j.egypro.2012.02.274

[20] A. Martion, A. Pesur and E. Kallaste: Co-combustion of Oil Shale Semi coke and Oil Shale Mixtures in Fluidized Bed[J]. J Therm Anal Calorim Vol. 64(3) (2001), pp. 1229̚-1240.

[21] M.F. Martins, S. Salvador, J.F. Thovert, et al: Debenest: Co-current combustion of oil shale-Part 1: Characterization of the solid and gaseous products[J]. Fuel Vol. 89(2010), pp.144-151.

DOI: 10.1016/j.fuel.2009.06.036