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1 Systems : journal of transdisciplinary systems science

1 2008

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Spalanie pojedynczych ziaren węgla w atmosferze O2/CO2

Kosowska-Golachowska M., Gajewski W., Kłos K.

Systems : journal of transdisciplinary systems science

2008

Vol. 13, spec. iss. 1/2

270--277

The combustion of coal in mixture of pure O2 and recycled flue gas is one variant of a novel combustion approach called oxy-fuel combustion. Conventional boilers use air for combustion in which the nitrogen from the air (approximately 79% by volume) dilutes the CO2 concentration in the flue gas. The capture of carbon dioxide from such dilute mixtures using amine stripping is relatively expensive. The recycled flue gases mainly consist of CO2 and H2O and are used to create combustion conditions similar to those of air. Spherical coal particles of 10 mm in diameter were combusted in the mixtures of O2/CO2 in a 10 kW bench scale unit at a temperature of 700-85O°C.