Coke stored outdoors can catch fire
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Does coke often catch fire when stored outdoors? How can this phenomenon be explained?
What kind of coke? 1. Is it produced by a coal coking plant? 2. Or petroleum coke produced by delayed coking? Combustion occurs as long as the three elements of combustion are present. . . It will be generated. . . You can make a judgment based on your own situation. . . :lol
The main reason is the presence of ferrous sulfide, which causes spontaneous combustion. The following is part of the post forwarded by Haiyoulu Jun: “The introduction of a small amount of water (with less than 20% water content in ferrous sulfide) will lower the initial auto-ignition temperature of ferrous sulfide to room temperature, allowing it to undergo auto-ignition and spontaneous combustion at room temperature as well.” However, a water content of over 60% can effectively suppress the autoheating and spontaneous combustion of ferrous sulfide. ” For more details, see http://bbs.hcbbs.com/thread-319282-4-1.html. Post 95; last edited by Final Fantasy on 2009-2-5 at 11:49.]
If it is coking coke, then the reason is that the reaction is not complete inside the coke tower! This post was last edited by Shuichangshou on 2009-2-6 11:04.]
Cold coke is of poor quality; the water temperature is high, and too much coke accumulates in the coke field for an extended period of time.
In addition to the reasons mentioned above, there may also be heat sources nearby such as steam pipelines. Additionally, when coke accumulates over a long period, it should be sprayed with water.
Coke that accumulates over time can catch fire on its own; if its volatile content is high, it is more likely to ignite spontaneously； Just like the pulverized coal bins in power plants, if the material level is high and the system has not been in use for a long time, it can also catch fire on its own
I agree with the opinion from the 4th floor... 1. Whether it’s delayed coking or coal coke, when they are left piled up in the sun for a long time, the volatile substances within them accumulate to form flammable gases. When these gases reach the explosive range, and there is oxygen along with temperatures high enough to trigger ignition, then fire will naturally occur... 2. As for spontaneous combustion caused by iron sulfide, I think the possibility of this is very low; it’s not the main cause. Compared to the amount of iron resulting from corrosion in the coke towers and the volume of coke produced, this factor can basically be ignored... 3. The possibility of iron sulfide existing in coal coke is even lower... Just my personal opinion... :lol
I agree with what was said on floor 8; I think it makes a lot of sense. Thank you all!