Abstract
Petroleum coke residual oil slurry (POS) is one of prospect substitute of oil burned in many industrial boilers and utilities in China. It is a mixture of pulverized petroleum coke, residual oil and slurry oil. We carried out a series of experiments to study its ignition and combustion mechanism. Experimental results show that the ignition temperature of petroleum coke is higher than normal anthracite and meager coal, and it is difficult to be burned in oil-fired furnace directly. The petroleum coke`s combustion property is improved greatly after mixing with residual oil and slurry oil. The combustion process of POS can be divided into three phases: preheating, kindling and homogenous combustion, burning of the petroleum coke residue. The combustion condition of POS is close to bituminous and coal-oil-mixture (COM).
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