Diesel blending

Yes, it will. . . What kind of oil is this for?

If gasoline contains some diesel, will the distillation range show the dry point of the diesel? If gasoline contains a certain amount of other substances, will the boiling range show the initial boiling point of the gasoline? If that is the case, in order to control the dew point of diesel, could its boiling range become so low as to reach the initial boiling point of gasoline?

First, this question is too general; two points need to be clarified first: 1. The gasoline level is generally kept between 38 and 205, and sometimes it may be as high as 185 or even 170°C depending on the evaporation index; the control of the saturated vapor pressure mainly depends on the choice of the initial boiling point. 2. The boiling range of diesel is generally between 205–360°C; it can be flexibly extended to 170°C–365°C depending on factors such as the diesel’s flash point and cetane number. Second, the impact of boiling range: The extent to which the blending of the two types of oil affects the boiling range depends on the circumstances. I conducted experiments before; by making artificial adjustments (which is a prerequisite), within a limit of no more than 5%, there is basically no effect on the boiling range and freezing point, but it has a significant impact on other key parameters. When 1% gasoline is mixed into diesel, its flash point drops immediately from 62 to below 50, which is fatal. When gasoline is mixed with 3% diesel, its octane rating drops slightly. Thirdly, if one wishes to control the freezing point of diesel, adding gasoline is not an appropriate method and it is not very effective either; it merely dilutes the wax content in the diesel (and moreover, a large amount cannot be added), without actually reducing the wax content significantly. The only approach is to strictly ensure that the flash point is above 55 through careful operational controls, and to reduce the dry point of the diesel within its boiling range (as the wax content increases as the boiling range moves forward), at the cost of reducing the yield of diesel. Third, the freezing point is reduced by adding cold filtration point improvers. Currently, the so-called antifreeze agents have no real effect; while solidification is reduced, there is little change in the cold filter point. True antifreezing performance should be determined based on the cold filter point. Cold filter point improvers can reduce wax crystal size from 60μm to around 1μm, while conventional so-called antifreeze agents are already quite impressive if they can reduce it to 10μm. I’ve never seen a cold filtration point improver that works as well.

It will definitely have an impact. What kind of oil are you mixing? ? ? ? ? You can try mixing 10% top-cycle oil, 30% middle-stage oil, and 60% diesel; the mixture obtained in this way yields good results when tested.

First of all, thank you all for your guidance. If gasoline and diesel are placed in the same container to determine their boiling range, would it result in a initial boiling point of 150–170 and a dry point of 365?