THERMAL SCIENCE

International Scientific Journal

Ksenia Yurievna Vershinina

,

Sergey Yu. Lyrschikov

,

Pavel A. Strizhak

THERMAL DECOMPOSITION AND OXIDATION OF COAL PROCESSING WASTE

ABSTRACT
To expand the database of kinetic parameters used for modeling the ignition of coals and their processing waste, promising coal-water slurry and coal-water slurry containing petrochemicals, studies have been performed on an experimental setup using thermal gravimetric analysis. The research into coals of various ranks (flame, gas, coking, low-caking, and nonbaking) and their processing waste (filter cakes) has yielded the decomposition parameters of the organic matter of coal and the formation of volatile substances as well as the oxidation parameters of the coke residue of all the coals and filter cakes under study. The studies cover the temperature range of the burning processes: 450-1300 K (for low-, medium-, and high-temperature burning modes). We have ascertained the dependence of kinetic parameters (pre-exponential factor and activation energy) describing the thermal decomposition of the organic matter of coal on the rank of coals and filter cakes. The findings show that the kinetic parameters describing the thermal decomposition of the organic matter of coal and its processing waste are practically the same. The thermokinetic parameters of coke residue oxidation are close for all the coals under study but they differ significantly for coke residue of filter cakes. The values of thermokinetic parameters obtained in the research are necessary to devise adequate physical and mathematical models and perform numerical studies (for mathematical modeling) of fuel slurry combustion processes in the combustion chambers of power plants.
KEYWORDS
coal water slurry containing petrochemicals, coal processing waste, ignition, thermal decomposition, oxidation, thermokinetic constants
PAPER SUBMITTED: 2017-10-23
PAPER REVISED: 2017-12-22
PAPER ACCEPTED: 2017-12-26
PUBLISHED ONLINE: 2018-01-07
DOI REFERENCE: https://doi.org/10.2298/TSCI171023311V
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2018, VOLUME 22, ISSUE Issue 2, PAGES [1099 - 1110]
REFERENCES
  1. Guttikunda S. K., Jawahar P. Atmospheric Emissions and Pollution from the Coal-Fired Thermal Power Plants in India, Atmospheric Environment, 92 (2014), pp. 449-460.
  2. Schandl H., et al., Decoupling Global Environmental Pressure and Economic Growth: Scenarios for Energy Use, Materials Use and Carbon Emissions, Journal of Cleaner Production, 132 (2016), pp. 45-56.
  3. Heidari N., Pearce J. M. A Review of Greenhouse Gas Emission Liabilities as the Value of Renewable Energy for Mitigating Lawsuits for Climate Change Related Damages, Renewable and Sustainable Energy Reviews, 55 (2016), pp. 899-908.
  4. Lior N. Energy resources and use: The Present Situation and Possible Paths to the Future, Energy, 33 (2008), pp. 842-857.
  5. Kontorovich A. E., et al., Long-term and Medium-Term Scenarios and Factors in World Energy Perspectives for the 21st Century, Russian Geology and Geophysics, 55 (2014), 5-6, pp. 534- 543.
  6. Chen W., Xu R. Clean Coal Technology Development in China, Energy Policy, 38 (2010), 5, pp. 2123-2130.
  7. Abas N., Khan N. Carbon Conundrum, Climate Change, CO2 Capture and Consumptions, Journal of CO2 Utilization, 8 (2014), pp. 39-48.
  8. Kijo-Kleczkowska A. Combustion of Coal-Water Suspensions, Fuel, 90 (2011), pp. 865-877.
  9. Zhu J., et al., Investigation on the Rheological and Stability Characteristics of Coal-Water Slurry with Long Side-Chain Polycarboxylate Dispersant, Fuel Processing Technology, 118 (2014), pp. 187-191.
  10. Zhao H., et al., Breakup and Atomization of a Round Coal Water Slurry Jet by an Annular Air Jet, Chemical Engineering Science, 78 (2012), pp. 63-74.
  11. Liu J.-Z., et al., Rheology and Thixotropic Properties of Slurry Fuel Prepared Using Municipal Wastewater Sludge and Coal, Chemical Engineering Science, 76 (2012), pp. 1-8.
  12. Lishtvan I. I., et al., Fuel Suspensions Based on Fuel Oil, Peat, Waste Wood, and Charcoal, Solid Fuel Chemistry, 43 (2009), 1, pp. 1-4.
  13. Shukla S., et al., Coal-Oil-Water Multiphase Fuel: Rheological Behavior and Prediction of Optimum Particle Size, Fuel, 87 (2008), pp. 3428-3432.
  14. Glushkov D. O., et al., Organic Coal-Water Fuel: Problems and Advances (Review), Thermal Engineering, 63 (2016), 10, pp. 707- 717.
  15. Glushkov D. O., et al., Burning Properties of Slurry Based on Coal and Oil Processing Waste, Energy and Fuels, 30 (2016), 4, pp. 3441-3450.
  16. Takeshita T., Yamaji K. Potential Contribution of Coal to the Future Global Energy System, Environmental Economics and Policy Studies, 8 (2014), 1, pp. 55-87.
  17. Chayka O. G., et al., Monitoring the Formation of Waste Oils, Proceedings Scientifical Works, Lviv, Lviv Polytechnic, 2009, pp. 221-224.
  18. Key World Energy Statistics. 2014, International Energy Agency, Paris, 2014.
  19. BP Statistical Review of World Energy, BP, London, 2015.
  20. Zajdlik R., et al., Experimental and Modelling Investigations of Single Coal Particle Combustion, Chemical Engineering Science, 56 (2001), pp. 1355-1361.
  21. Kuznetsov G. V., et al., Numerical Simulation of Ignition of Particles of a Coal-Water Fuel, Combustion, Explosion and Shock Waves, 51 (2015), 4, pp. 409-415.
  22. Syrodoy S. V., et al., The Influence of Heat Transfer Conditions on the Parameters Characterizing the Ignition of Coal-Water Slurry Particles, Thermal Engineering, 62 (2015), 10, pp. 703-707.
  23. Atal A., Levendis Y. A. Combustion of CWF Agglomerates from Pulverized or Micronized Bituminous Coal, Carbon Black, and Diesel Soot, Combustion and Flame, 98 (1994), 4, pp. 326-342.
  24. Beloševic S., et al., Numerical Prediction of Processes for Clean and Efficient Combustion of Pulverized Coal in Power Plants, Applied Thermal Engineering, 74 (2015), pp. 102-110.
  25. ISO 11722:1999. Solid mineral fuels - Hard coal - Determination of moisture in the general analysis test sample by drying in nitrogen.
  26. ISO 1171:2010. Solid mineral fuel - Determination of ash.
  27. ISO 562:2010. Hard coal and coke - Determination of volatile matter.
  28. ISO 1928:2009. Solid mineral fuels - Determination of gross calorific value by the bomb calorimetric method and calculation of net calorific value.
  29. ASTM D5373-14e1. Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke. ASTM International, West Conshohocken, PA; 2014.
  30. Lyrshchikov S. Yu., et al., Thermal Decomposition of Coal and Coal-Enrichment Wastes, Coke and Chemistry, 59 (2016), pp. 264-270.
  31. Biagini E., et al., Devolatilization Rate of Biomasses and Coal-Biomass Blends: an Experimental Investigation, Fuel, 81 (2002), pp. 1041-1050.
  32. Ma S., et al., A Kinetic Analysis of the Pyrolysis of Some Australian Coals by Non-Isothermal Thermogravimetry, Journal of Thermal Analysis, 37 (1991), pp. 1161-1177.
  33. Sarwar A., et al., Kinetic Studies of Pyrolysis and Combustion of Thar Coal by Thermogravimetry and Chemometric Data Analysis, Journal of Thermal Analysis and Calorimetry, 109 (2012), pp. 97-103.
  34. Scott S. A., et al., An Algorithm for Determining the Kinetics of Devolatilisation of Complex Solid Fuels from Thermogravimetric Experiments, Chemical Engineering Science, 61 (2006), pp. 2339-2348.
  35. Wang S., et al., Numerical Study of Coal Particle Cluster Combustion Under Quiescent Conditions, Chemical Engineering Science, 62 (2007), pp. 4336-4347.
  36. Khare P., et al., Application of Chemometrics to Study the Kinetics of Coal Pyrolysis: A Novel Approach, Fuel, 90 (2011), pp. 3299-3305.
  37. El-Sayed S. A., Mostafa M. E. Pyrolysis characteristics and kinetic parameters determination of biomass fuel powders by differential thermal gravimetric analysis (TGA/DTG), Energy Conversion and Management, 85 (2014), pp. 165-172.
  38. Niu Z., et al., Investigation of Mechanism and Kinetics of Non-Isothermal Low Temperature Pyrolysis of Perhydrous Bituminous Coal by In-Situ FTIR, Fuel, 172 (2016), pp. 1-10.
  39. Glushkov D. O., et al., Numerical research of heat and mass transfer during low-temperature ignition of a coal particle, Thermal Science, 19 (2015), pp. 285-294.
  40. Valiullin T. R., et al., Low temperature combustion of organic coal-water fuel droplets containing petrochemicals while soaring in a combustion chamber model, Thermal Science, 21 (2017), pp. 1057-1066.
  41. Valiullin T. R., Strizhak P. A. Influence of the shape of soaring particle based on coal-water slurry containing petrochemicals on ignition characteristics, Thermal Science, 21 (2017), pp. 1399-1408.
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Thermal decomposition and oxidation of coal processing waste

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