Differences between burners using natural gas and coke oven gas as industrial fuel gases
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What are the differences between burners used for industrial fueling with natural gas and coke oven gas? Is it possible to use natural gas in existing coke oven gas burners? If so, will the efficiency decrease significantly? Conversely, can coke oven gas be used with existing natural gas burners?
There is a significant difference in the calorific values of natural gas and coke oven gas, as well as a large difference in their efficiency. Personally, I can’t exchange them. The heat load can only be ensured by replacing the gas burner.
The calorific values of the two fuels differ by more than a factor of two, so they cannot be simply replaced or substituted for one another. If there are experts, effective changes can be made within limited bounds. It’s by no means just a matter of changing the nozzle size alone ； The air supply is insufficient, preventing the flame from being properly organized; it’s important to be cautious of flash explosions that could lead to full-blown explosions!
It’s not possible to replace it; the differences in the thermal properties of these two types are too great. As mentioned above, it’s not something that can be resolved by simply adjusting the dimensions of a certain part – in this case, it’s necessary to replace the burner.
Gas has a high calorific value, so the air supply volume needs to be high. Coke oven gas contains many impurities such as tar and naphthalene, and the burners for natural gas have smaller orifices; therefore, when replaced with coal gas, they are particularly prone to clogging or fouling. If an appropriate amount of steam is added to the coke oven gas, it should be possible to use a natural gas burner; however, without proper control, it can be dangerous. If a burner designed for coke oven gas is used to burn natural gas, the air excess factor will be much higher, resulting in reduced furnace efficiency. It is possible to reduce the size of the air valves; this may lead to faster fuel consumption, a flame that does not meet the desired characteristics, and a weaker flame that may touch the furnace tubes. We haven’t actually done this before, so we can only speculate about what might happen.
It’s not possible to replace them; these two types of fuel are too different from each other. It’s not like modifying a home gas stove by simply adjusting the dimensions of certain parts – in reality, the burner itself has to be replaced.
The nozzles designed for coke oven gas can be used with natural gas (although the combustion efficiency will not be as good as those using nozzles meant for natural gas), but nozzles for natural gas cannot be used with coke oven gas, as the mixing methods required for burning these two types of gas are different.