2013 0(TTPT)

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Arkhipov V.A.1, Sidor A.M.2, Surkov V.G.3

1 Scientific Research Institute of Applied Mathematics and Mechanics by Tomsk State University, Tomsk, Russia
2 National Research Tomsk State University, Tomsk, Russia
3 Institute of Petroleum Chemistry, Tomsk, Russia


Arkhipov, V.A., Sidor, A.M. and Surkov, V.G., (2013) Examination of the physics-chemical and energy performances of organic water-coal fuils, Modern Science: Researches, Ideas, Results, Technologies, Iss. #0(TTPT), PP. 39 - 47.


organic water-coal fuels (OWC); cavitation treating; durning OWC; physical and chemical performances OWC


In the short term through the large coal reserves many experts and analysts predict the enhancement of its role in the energy budget of many countries. However, the environmental constraints require the development and implementation of new clean coal technologies that provide the high completeness of fuel using in the lowest possible harmful impact on the environment. All of the above also applies to the processing of heavy oil residues (fuel oil and bitumen). Against this background the technologies of preparation and industrial use of "alternative" fuels based on petroleum residues, coal and coal slurry are actively developed. Traditional use of liquid hydrocarbon products of coal or petroleum origin as a fuel in heat-and-power engineering systems is associated with considerable difficulties in the case of water content. It is advisable to turn the flooded liquid fuel into fine water-hydrocarbon stable systems, which combustion efficiency has been confirmed by numerous studies and industrial applications. Modern high-performance devices such as a disintegrator and cavitation devices are used for the preparation of homogeneous composition fuels. Most heat-and-power engineering systems, both in Russia and abroad, use the coal in powder form as an energy source. Its production is very energy-intensive and requires expensive equipment. The efficiency of coal combustion can be improved by using it as a coal-water fuel. The coal-water fuel has all the properties of the liquid fuel and could easily replace the fuel oil in a small boiler-room. For the preparation of coal-water fuel can be used cavitators which allow obtaining micron-sized particles of coal. The injection of inferior oils into the coal-water slurries will significantly increase the calorific value of such fuels. To obtain stable and suitable for burning organic coal-water fuels dispersing step is necessary to combine the mixture and crushing of coal. It has been researched the effect of the cavitation treatment and organic additives (fuel oil) on the physico-chemical and power characteristics organic coal-water fuels (OWCF). Analysis of cavitation technology has shown that the use of cavitator Petrakova possible to combine grinding solids and mixing of all components until smooth. With increasing time of cavitation increases the stability of the suspension (no separation). Results obtained using empirical formula Mendeleev show that increasing the content of oil in OWCF from 0 to 25% increase in the heat of combustion from 20.8 to 38.0 MJ/kg. The combustion OWCF in a muffle furnace shows that with increasing oil content from 0 to 25% of the ignition delay time is reduced from 180 to 10 at a temperature 800 С.


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