Carbon monoxide content in coke oven exhaust gas
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This post was last edited by wangshaobo on 2015-6-25 14:28. The leader asked a question: What is the acceptable level of CO content in the waste gases generated by heating with coke oven gas? I replied: It’s better if there’s none at all, as that indicates complete combustion of the fuel and lower heat consumption. The leader said: In many cases, complete combustion isn’t possible – is there a reasonable range for CO levels? I’ve brought this out to consult with everyone.
Use a gauge to measure it or refer to the manufacturing process!
This can be used to calculate the air excess factor, which is related to CO, CO2, and O2
First of all, congratulations to you and your supervisor for identifying one of the core problems in domestic coke ovens! A common problem with the coke ovens designed in China at present is that, during direction reversal, the rising gas stream in the regenerator is filled with mixed gas; when the direction is changed, this gas is directly drawn into the flue ducts! I once conducted on-site measurements at a large steel plant in the country, and found that during the commutation process, the CO level remained around 5% for about 15 seconds – which resulted in significant energy consumption! It’s also not conducive to emission reduction! !
When the air excess factor is 1.25, carbon monoxide should be within a certain range, and this range represents reasonable values