The dry point of naphtha is 153, and the initial boiling point of diesel is 176; so what is the boiling range for those over 20 degrees in between?
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Please ask an expert for help! ! !
For gasoline, the boiling ranges of its various fractions overlap
It could be a deviation in the analytical testing; we once had a fraction at nearly 40 degrees that we didn’t know what to do with
It is only through naphtha cut and fractionation that such a low dry point can be achieved; the dry points of catalytic fractionators and atmospheric distillation units are around 200. A flash tower or primary distillation tower under atmospheric pressure can also produce such a product, but it ends up mixed with the atmospheric distillate.
It can be aviation kerosene, but its dry point is higher than the 176 you mentioned; however, this is normal as there is an overlap
I wonder if the original poster has heard of the term azeotrope? Gasoline and diesel are an azeotrope.
In the middle is aviation fuel; the fractionation tower of the hydrocracking unit produces heavy naphtha, aviation fuel, and diesel, with overlapping components among these three.