Why is it said that increasing the calorific value of acidic gases enables complete combustion?
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Acidic flares have a low calorific value due to their acidic gases, so it is necessary to add supplementary fuel in order to increase the calorific value and enable complete combustion. The definition of calorific value is the heat released upon complete combustion, and complete combustion is related to oxygen. So what is the relationship between calorific value and completeness?
Calorific value is an inherent property of a substance. In factories, since the concentration of acidic gases is low and they are not easy to ignite, what is meant by increasing the calorific value there is to raise the calorific value of the gas mixture; this is achieved by adding combustible gases to the mixture with a low concentration of acidic gases, thereby enabling it to burn.
The torch burns in air, and it is not easy to increase the oxygen content. If the concentration of combustible material is too low, the combustion energy will be insufficient to ensure a vigorous burn; this can lead to incomplete combustion or even extinguishment, so more fuel needs to be added
When acidic flare gas is emitted, a heat-tracing fuel gas line leading directly to the flare tip causes the tip to burn in advance, allowing the acidic flare gas to enter the already burning tip for combustion. What is the purpose of this co-firing? It seems that with co-firing, combustion can occur even without additional fuel. What’s the meaning of their coexistence?
Are you referring to the eternal flame of the torch? It is the function of the igniter to prevent acidic gases from being released directly into the atmosphere without being ignited first
The permanent flame is ignited to generate a fire, and then torch gas mixed with fuel is added to that fire for combustion. Why can’t the mixed torch gas be directly ignited by the permanent flame, since the heat value of the mixed fuel is already sufficient?
Co-firing is necessary because acidic gases have too low a combustibility value; burning them could cause them to go out and pollute the environment. The permanent light is used for ignition, while the auxiliary combustion ensures that the torch remains lit. In most cases, the medium used is the same; however, it is also possible to increase the flammability of the gas in the exhaust medium, etc. The specifics depend on your company’s manufacturing processes
Co-firing is intended to create a high-temperature environment to facilitate combustion and decomposition, while blending is done to increase the calorific value.