PROCESS FOR RECOVERING SUPERFLUOUS GAS IN COKE DRY QUENCHING PROCESS AND AN APPARATUS THEREFOR

摘要

A superfluous circulating gas in the coke dry quenching installation, which is obtained by adjusting addition of a diluting gas to the circulating gas to cool the cooling tower for red heated coke discharged from the coke oven so that the composition of the superfluous gas is more than 4% of H2, more than 14% of CO, less than 1% of O2 and the caloritic value being more than 700 Kca?/Nm3, is branched from the circulating gas pipe and reused for supplementing the fuel gas from the coke oven.