Carbon black exhaust
Thread Content
What gas is carbon black exhaust? What components are they all made of? What’s the calorific value approximately? If it is to be used to heat the coke oven, where should it be introduced into the coke oven? (Should it follow the path of coke oven gas, namely through the main duct in the basement → horizontal ducts → downward nozzles → brick gas channels, or should it follow the path of blast furnace gas, namely through valves → small flues → regenerative chambers → inclined channels?)
The main pollutant in carbon black production is the carbon black exhaust gas, which contains harmful components such as carbon black dust, H2S, and CO. The exhaust gas is a combustible gas with a low calorific value, approximately 2717 KJ/NM3.
I’m not very familiar with the reuse of carbon black exhaust gas for heating coke ovens. It should be possible to mix it with coke oven gas and feed it into the vertical flue for combustion; it can also serve to enrich the gas and depure it.
Could you help find out the components of carbon black exhaust and their percentage contents?
Analysis data on the composition of carbon black exhaust gases: For oils with an API value of approximately 4, the calorific value (kcal/Nm3) and composition (%) of the exhaust gases for various types are as follows: Component N-220 N-330 H2O 37.16 37.3 H2 11.22 11.3 CO 11.2 11.49 C2H2 0.14 0.4 CH4 0.15 0.37 CO2 1.71 1.64 Ar 0.47 0.45 N2 36.94 37.05 Total 98.99 100 Calorific value 660 725
Is this gas at high temperature? Otherwise, how could it contain so much water? All of them have reached over 30%. It would be best to have the volume composition at room temperature.
The temperature of the carbon black exhaust gas at the main bag outlet is around 200 degrees, and a separate device is required for dehydration.
I am a user of carbon black, not a producer. When the carbon black exhaust is delivered to me, the temperature is around 35°C, and a large amount of water vapor condenses out. What concerns me is the composition of the exhaust gases up to the moment before it starts to be used. Moreover, cooling and condensing the exhaust gases before transporting them also helps to reduce the diameter of the pipes
Users must also know the properties of exhaust gases, right? People who act recklessly in marriage like this dare to use exhaust fumes, resulting in either explosions or corrosion.