What should the cut point be when producing asphalt or asphalt modifiers from vacuum residue?
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What should the cut point be when producing asphalt or asphalt modifiers from vacuum residue?
What is the process route used to produce asphalt? Boiling range above 500°C.
This is closely related to the properties of the raw material. Here we use naphthenic crude oil, and at 550°C, its penetration value already meets the standards for 70# asphalt!
If producing 90# heavy traffic asphalt, what should the cutting point be?
You need to make adjustments according to the labels; there is no fixed temperature
It mainly depends on the wax content in the residue; due to differences in crude oil properties and origin, the cutting point varies.
We mainly extract rubber oil by controlling the furnace outlet temperature at 370 to 375 degrees and the bottom of the tower temperature at 320 degrees; this allows the light components in asphalt to be removed, thereby enabling the softening point and penetration to meet the required standards, resulting in 70# road asphalt after blending.
First, it is necessary to check whether the properties of the raw materials are suitable for producing asphalt; in addition, three other key parameters must meet the required standards, including softening point, penetration, and elongation. First, adjust the parameters to ensure that the softening point is within the specified range, and then check whether the other indicators are also satisfactory.