Results 211 to 220 of about 23,817 (267)
Multiscale Perspectives on Char Oxidation: Reaction Regimes, Transport Phenomena, and Modeling Challenges. [PDF]
ACS OmegaYang J, Wu X, Yang L, Xu J, Wu S, Lai M.
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Geothermal-Induced Spontaneous Combustion of Deep-Mined Coals A Systematic Investigation of Functional Group Reaction Networks and Stage-Resolved Kinetics Across Metamorphic Grades. [PDF]
ACS OmegaWang H, Zhang W, Li L.
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Recycling of coal combustion wastes
Waste Management & Research: The Journal for a Sustainable Circular Economy, 2009The separation of unburned carbon from coal-fired power plant bottom ashes was conducted in order to increase the possibility of the recycling of coal combustion wastes. A two-stage flotation technique was used for this study. In the rougher flotation experiments the amounts of collector, dispersant and frother, pulp density, pH, particle size ...
Öz, Derya, Koca, Sabina, Koca, Hüseyin
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Combustion characteristics of high ash coal in a pulverized coal combustion
Fuel, 2001Abstract The influences of ash content on pulverized coal combustion characteristics are experimentally and numerically studied under a staged combustion condition. The stage combustion ratio (the ratio of air volume of the staged combustion air to the total air) is 0 or 30%, and the coals tested are the three high ash coals with different ash ...
R. Kurose, M. Ikeda, H. Makino
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Development and Validation of a Coal Combustion Model for Pulverised Coal Combustion
2010 14th International Heat Transfer Conference, Volume 3, 2010To fully understand the processes of heat-and-mass transfer on the laboratory-scale and full-scale coal boilers, computer models are needed to develop, which can predict flow fields, heat transfer and the combustion of the coal particles with reasonable accuracy.
M. J. Chernetsky, A. A. Dekterev
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Organic emissions in coal combustion in relation to coal structure and combustion temperature
Fuel, 1985Abstract The pulsed combustion of coal has been studied in a small fluidized-bed reactor. The effect of combustion temperature and coal rank on the organic composition of the off-gas was investigated. Results are presented for the combustion of an anthracite, a medium-volatile bituminous coal and a high-volatile bituminous coal at 700, 800 and 900°C.
Odulphus S.L. Bruinsma +2 more
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MODELLING PULVERISED COAL COMBUSTION USING A DETAILED COAL COMBUSTION MODEL
Combustion Science and Technology, 2006ABSTRACT The ability to assess the combustion behaviour of internationally traded coals and accurately predict flame characteristics, stable species concentration, unburned carbon and pollutant emissions is of importance to the power generating industry. Despite recent advances in coal combustion modelling detailed understanding is still lacking on the
R. I. BACKREEDY +4 more
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A REVIEW OF SPONTANEOUS COMBUSTION OF COALS
Fuel Science and Technology International, 1995ABSTRACT Coal is one of the carbonaceous materials which, under certain conditions, can combust spontaneously as a result of its oxidation with atmospheric oxygen. Coal oxidation is an irreversible exothermic reaction and its rate increases with temperature.
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Coal Characterization in Relation to Coal Combustion
1987Most coals are used worldwide for combustion today. Generally all kinds of coals are applicable for combustion. The major methods of burning are fixed bed firing, fluidized bed firing and suspension firing. The last technique is used in big industrial plants for electric power generation.
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Combustion, Explosion, and Shock Waves, 2012
Results of an experimental study of continuous spin detonation of a coal-air mixture with addition of a certain amount of hydrogen in a plane-radial vortex chamber 500 mm in diameter are presented. The tested substance is fine-grained cannel coal from Kuzbass, which has a particle size of 1–7 µm and contains 24.7% of volatiles, 14.2% of ashes, and 5.1%
F. A. Bykovskii +3 more
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Results of an experimental study of continuous spin detonation of a coal-air mixture with addition of a certain amount of hydrogen in a plane-radial vortex chamber 500 mm in diameter are presented. The tested substance is fine-grained cannel coal from Kuzbass, which has a particle size of 1–7 µm and contains 24.7% of volatiles, 14.2% of ashes, and 5.1%
F. A. Bykovskii +3 more
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