Abstract
The optimum stability of coal cake is essential for producing good quality of coke in stamp charged coke making process. A suitable binder named as ‘X7’ was identified to improve the stability of coal cake, oven throughput, coke quality and reduce specific energy consumption for stamp charged coke making process. Laboratory results show that addition of ‘X7’ in coal blend up to 0.10–0.50 percentage, improved the mechanical strength of coal cake by 3.0–5.0 percentage. Six hundred kg pilot plant trials show that addition of binder in the base coal blend improved coke quality in terms of CSR, M 40 and AMS significantly. Coke plant trials also show that ‘X7’ addition (0.10%) in base coal blend improved coke quality in terms of CSR (1.25 point), M 40 (0.9 point) and AMS (1.70 mm). Addition of ‘X7’ increased Coke End Temperature up to 24°C during plant trials. The increased in temperature saved energy approximately 11 000 Gcal and reduce CO2 emission by at least 10 000 T/Annum.
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