【Daily Question】1.17 Short-answer question: Why is it necessary to control the density of heavy diesel in atmospheric and vacuum distillation units?
Thread Content
This post was last edited by Catalyzing a Grain on 2016-1-22 at 10:24. Why is it necessary to control the density of heavy diesel in atmospheric and vacuum distillation units? What is the general control level for your devices? When the density of heavy diesel is too high, it contains excessive amounts of asphaltenes and resins, making it difficult to burn; if the density is too low, there are too many light components, which results in a low flash point and poses a risk to safety. Correct +2; In-depth discussion +5 @Guan Gongyu
**The standards specify this; both light diesel and heavy diesel require density control
Why is it necessary to control the density of heavy diesel in atmospheric and vacuum distillation units? What is the general control level for your devices? The density of heavy diesel should not be too high; if it is too high, there will be too much asphaltene and gum, making complete combustion difficult ； When the density is too low, there are excessive light fractions, which results in a low flash point and fails to ensure safe use.
Because the density of heavy diesel should not be too high; if it is too high, there will be too much asphaltene and gum, making complete combustion difficult； When the density is too low, there are excessive light fractions, which results in a low flash point and fails to ensure safe use.
When heavy diesel has an excessive density, it contains too much asphaltenes and gums, making complete combustion difficult； When the density is too low, there are too many light fractions present, which results in a flash point that is too low and does not ensure safe use. We generally keep it between 0.80 and 0.88
When the density of heavy diesel is too high, it contains excessive amounts of asphaltenes and gums, making it difficult to burn; if the density is too low, there are too many light components, which results in a low flash point and fails to ensure safe use
Too high in density, with a lot of recombined components and poor quality； Too low a density results in a low extraction rate and low diesel flash point. Around 0.93