Is there any relationship between the reaction temperature in the diesel hydrogenation unit and the 95% recovery temperature of the refined diesel?
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At the beginning of March, the reactor catalyst in the diesel and gasoline mixed hydrogenation unit was stripped. After this operation, the reaction temperature dropped by 15 degrees; the temperatures in the second and third reaction beds also decreased by around 15 degrees. However, after stripping, the temperature at which 95% of the refined diesel could be recovered was higher than before, while the temperature at which 95% of the mixed feed oil could be recovered was lower. Neither the space velocity nor the hydrogen-to-oil ratio showed any significant changes. Is the increase in the temperature at which 95% of the refined diesel can be recovered after stripping due to the decrease in the reaction temperature? If not that, then what is it?
Does hydrofining have such a significant impact on the dry point of diesel? It can’t be that it’s changed by a few tenths, right?
The mixed crude oil remains unchanged; the 95% point for refined diesel does not meet the requirements, so. . .