For the heating of coke oven gas in various types of coke ovens, what is the consumption amount of coke oven gas?
Thread Content
This post was last edited by yggswl on 2015-7-2 at 10:59. Various types of coke ovens use only coke oven gas for heating; there is no blast furnace gas used. So what is the consumption level of coke oven gas? 1. Can the consumption of coke oven gas be estimated based on the output of the coke oven? What about the amount of waste gas generated? 2. Can the production volume of raw coal gas be estimated based on the output of the coke oven? What is the output of purified coke oven gas? For example, for a coke oven with a capacity of 1 million tons, it would be sufficient to have an estimate. Thank you. Some people have measured the air excess factor: in the combustion process within the coke oven, it is around 1.25 in the side flues, but it rises to 1.4 at the location of the dampers. At the flues and the main flue, this value can reach 1.5 or even higher, while at the chimney outlet it may go up to 2.0. Where does this extra air come from? Where are the main leakage points? How to control it?
The heat consumption, gas usage, and amount of waste gas can all be estimated, provided that one knows the type of furnace (number of burners, effective volume of the carbonization chamber, or amount of coal loaded per furnace), the turnover time, the specifications for the coal used, and the calorific value of the gas produced by the furnace. It’s quite easy to calculate
Can’t it be estimated just by saying a coking oven with a capacity of 1 million tons or one with a capacity of 400,000 tons?
1. For a coke oven with an annual production capacity of 1 million tons, do you mean the designed production capacity or the actual production volume? If design production levels are used, the calculated values for gas consumption, waste gas output, and unutilized gas output are also design values, and do not reflect the actual amounts. 2. Generally speaking, the purpose of ramming is to make use of low-cost gas coal or weakly caking coal; more gas coal leads to a higher gas production volume. Without knowing the type of furnace (ramming or top-loading) or the specifications of the coaling mixture, it is difficult to calculate the gas production volume. 3. The production volume is 1 million tons in both cases; large coke ovens consume less heat than small ones, which results in lower gas consumption. Otherwise, **why is there a push to make coke ovens larger and phase out those smaller than 4.3m?**
The heat consumption for coking is one of the key technical parameters in coke oven design; in principle, the lower it is, the better! However, it is influenced by many factors, and specific understanding requires the use of calibration methods to determine it! Reducing the heat consumption in coking is essential for energy conservation and emission reduction; it is hoped that coking technology will continue to be optimized to contribute to these goals! !
I am also learning the materials on this topic; I would appreciate some advice
Is there a formula for this? Could you tell me where it comes from?