Hydrocracking conversion rate issue
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I need the expertise of experts here: when the conversion rate in hydrocracking increases and a certain amount of diesel is extracted, will the extraction temperature rise or fall? And will the final boiling point of the diesel increase or decrease?
Does any expert know? Could I say something?
The conversion rate increases, the degree of cracking increases, the amount of light components increases, the temperature at which diesel is extracted decreases, and the final boiling point of diesel decreases as well
Is the conversion rate usually in the 60s? Will diesel then decrease? Has naphtha been increasing continuously?
If the reaction depth increases without any adjustment to the split-system, then the diesel extraction temperature at the side stream of the fractionation tower will drop, resulting in a overall decrease in the diesel product flow!
It’s sufficient to keep the yield of diesel products below 50%!
As the reaction depth increases, the degree of cracking of the feedstock rises and more light components are produced; therefore, by using a split-system to raise the temperature at the top of the distillation column, the yield of naphtha will also increase accordingly!
I don’t know for the 60s range! As the conversion rate increases, the amount of naphtha will definitely go up!
High conversion rate, reduced diesel production, lower extraction temperature
According to the cleavage of the β bond in the carbocation, C1-C2 will not change much, while C3-C4 will increase. A decrease in naphtha leads to chain breakage, and straight-chain structures are the most difficult in this regard!