A METHOD FOR DETERMINATION OF COKING INDEX AND EVALUATION OF PROGRESS OF CARBONIZATION IN EACH OVEN.

摘要

A method for determination of coking index of each coke oven in a battery for detection of coke readiness by evaluation of the actual progress of carbonisation in each oven The method comprises the steps of determining the peak tenvrature (tmax_temp) from raw gas temperature profile for each oven; determining the time (tmax_time) to reach peak temperature or carbonization period from the equation: tmax_time (i) = now_time - last_time (i); where 'now_time' is the time when the temperature peak is detected and 'last_time ' (i) is the last charging time of oven (i); determining the coking period from the equation : coking period = next_time (i) - last time (i): where 'next_time' is next pushing time and 'last_time' is the last charging time; and determining the coking index using data generated from steps i, ii and iii based on : Coking index = Coking period Carbonisation period