What is the proportion of recycled coke oven gas in total coke oven gas?
Thread Content
May I ask: in coking production, what is the proportion of coke oven gas that is returned to the coke oven, compared to the total amount of coke oven gas?
This ratio is related to the volatility of the coal blend; higher volatility results in a larger volume of gas, and accordingly, a smaller ratio. It is generally between 50% and 60%. Additionally, it is related to the adjustment of the temperature in the coke oven, and there are also differences in the thermal efficiency of the coke ovens.
Around 50%, it is recommended to install a flow meter (if accurate data is needed)
It is related to the volatiles content of coal and the coking process; in our plant it accounts for around 45%, with typical values ranging from 45 to 55%
In coking production, the proportion of recycled furnace gas in the total coker gas typically ranges from 45 to 55%; this proportion varies depending on the tightness of the coker itself, its thermal efficiency, and differences in the heating regime. Of course, this is on the condition that the volatility levels of the coal blends being compared are the same; if there are significant differences in the volatility of the coal blends, then it is not possible to compare such ratios.
When the coke oven reaches its designed production capacity, furnace gas accounts for approximately 45% of the total gas produced by the coke oven
It is generally between 40% and 60%, depending on: 1) the amount of gas generated, which is related to the volatiles content of the coal fed into the furnace; 2) the temperature control level of the coke oven – the uniformity of the furnace temperature is also crucial. The amount of heating gas used depends on the precision of temperature control
Mechanized coke ovens with a heat storage structure generally have a value between 45% and 50%; some ovens even reach 70% to 80%, such as the CX-V type coke ovens； There are even some that are 100%, such as heat-recovery coke ovens.
Winter and summer in the north are also different. The heat loss of the furnace is high in winter.
Based on experience, it is generally between 47% and 53%.
Based on our company’s experience, in a 2-million-ton rammed coke oven, the proportion of recycled furnace gas in the total coke oven gas is around 45%. However, the specific ratio varies depending on the type of furnace, the degree of tightness of the furnace body, its thermal efficiency, and the differences in heating methods.
When our company operates at full capacity, the proportion of gas generated from reburning coal ranges between 45% and 50%, depending mainly on the composition of the coal used
The proportion of recycled furnace gas in coke oven gas is generally between 45% and 55%; the specific ratio varies depending on the tightness of the coke oven itself, its thermal efficiency, and differences in the heating regime. The operating system is crucial.
The proportion of recycled gas in our company is generally between 44% and 50%. The factor that has the greatest impact is the level of volatile matter in the coal used; if the volatile matter content is around 30%, the proportion of recycled gas is between 44% and 47%. If the volatile matter content is between 28% and 29%, then the proportion of recycled gas is between 48% and 50%. Other influencing factors include the heating regime of the coke ovens.