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The effect of co-firing coal and biomass on the ignition behaviour and NO emissions was evaluated under both air and O2/CO2 (21-35% O2) atmospheres. The results showed a worsening of the ignition properties in the 21%O2/79%CO2 atmosphere in comparison with air. Furthermore, in order to obtain similar or better ignition properties, the oxygen concentration in the O2/CO2 mixture must be 30% or higher...
Oxy-fuel combustion is a GHG abatement technology in which coal is burned using a mixture of oxygen and recycled flue gas, to obtain a rich stream of CO 2 ready for sequestration. An entrained flow reactor was used in this work to study the ignition and burnout of coals and blends with biomass under oxy-fuel conditions. Mixtures of CO 2 /O 2 of different concentrations were...
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