Calculation of heat consumption in coking
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Given: Gas consumption per ton of coke is 200 m3/t of dry coke; the calorific value of the gas sent back to the furnace is 16650 kJ/m3; the coking rate is k = 0.75; and the moisture content of the coal fed into the furnace is M = 11%. Find: The heat required for coke production, Q = ? Using these data, can the heat consumption per unit weight of wet coal, q_wet, and the heat consumption per unit weight of wet coal with 7% moisture content, q, be calculated? How to calculate it? Would it be best to write out the detailed steps?
q_wet = 200*16650/(1/0.75)/1000 = 2497.5 KJ/Kg; q = 2497.5 – 29.31*(11–7) = 2380.26 KJ/Kg
Further question: q_wet = 200*16650/(1/0.75)/1000 = 2497.5 KJ/Kg. The 200 in the formula refers to the fact that 200 m3 of gas is required to produce one ton of dry coke. After dividing by (1/0.75), does the result represent the gas consumption per unit of dry coal or per unit of wet coal?