Calculation of oxygen-coal ratio in water-coal slurry gasification
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Simulation of the water-coal slurry gasification process: coal, water, and oxygen are fed separately. How is the oxygen-to-coal ratio calculated? Previously, the ratio of the oxygen mass flow rate to the coal mass flow rate was used; the calculated value was around 0.9. Many studies indicate that the oxygen-to-coal ratio should be between 450 and 500. I would like to know how this is calculated – please provide a detailed calculation process or formulas. Thank you!
It seems that oxygen is measured in volume in Nm3, while coal is measured in mass units
When the oxygen-to-coal ratio is over 400, the unit is Nm3/m3; it should be a volume value. However, I’m not sure how to determine the volume of the coal slurry
The slurry volume is measured using an electromagnetic flowmeter