Nitrogen content in gas
Thread Content
At XX Company, a senior executive asked: What is the nitrogen content in gas? I replied: Around 4~7%. He asked again: If the nitrogen content is high, how can it be reduced? Me: … Before, I only encountered the issue of nitrogen content in gas while calculating the combustion process of gas; I haven’t run into any problems related to nitrogen content in other contexts. Now let’s discuss: why does this leader care about the nitrogen content in gas? And how to reduce the nitrogen content?
This is a very professional question.
Is it coke oven gas? If the nitrogen content in coke oven gas is high, it indicates that a large amount of air has entered the carbonization chamber and the raw gas system!
I agree with your view. At that time, I mentioned that the carbonization chamber was not airtight, allowing outside air to enter the waste gas system through gaps such as the furnace door, or exhaust gases from the combustion system to leak in through defects in the furnace walls. But the manager said it’s completely impossible.
It is impossible for carbonization chamber to be contaminated by the combustion system
The nitrogen content in gas varies significantly depending on the process, with the process being the key factor. The gasification coal gas has a high content.
The pressure of the control gas collection pipe is generally regulated so that the pressure at the bottom of the carbonization chamber below the suction pipe is ≥5 Pa at the end stage of coking. When the pressure in the gas collection duct is high and negative pressure is significant, as well as when the furnace wall is not airtight, could there be leakage? Of course, the probabilities are all very low. So it’s very difficult for me to solve the problem of excessive nitrogen content in the gas.