【Daily Question】Chemical Analysis Version, 5.8.2021
Thread Content
How is the distribution of resins and asphaltenes in oil? Resins start to appear in the kerosene fraction; as the boiling point of the fractions increases, their content rises continuously, with the highest concentration found in residue. All asphaltenes are concentrated in residue.
Gummy asphalt-like substances are complex mixtures composed of large-molecule non-hydrocarbon compounds. Due to their high relative molecular mass and thus high boiling points, they are primarily found in the residue fraction during crude oil processing. Under certain conditions, gums can be converted into asphaltenes. The content of gums and asphaltenes in heavy, gummy oils ranges from 30–40%, while in light oils it is between 5–10%. Additionally, the amount of gums and asphaltenes is related to the aromatic content in crude oil
The distribution of resins and asphalts in petroleum products does not follow a very strong pattern. Different crude oils have different distribution patterns, as the structures of these two substances are particularly complex. The heavier the oil, the higher the content of resins and asphaltenes. It is present in small amounts in gasoline and diesel, and in the highest amounts in residue oil. During crude oil processing, resins and asphalts are primarily concentrated in vacuum residue. According to four-component analysis, the combined content of resins and asphalts (pentane asphalts) in the vacuum residue of crude oils from various regions in China ranges roughly between 25% and 70%. If there is a residue solvent deasphalting process, the gum and asphaltenes are transferred to the deoiled asphalt.
Resins begin to appear in the kerosene fraction; as the boiling point of the fractions increases, their content rises accordingly. The highest content is found in residue, with all asphaltenes concentrated in it.
Gummy asphalt-like substances are complex mixtures composed of large-molecule non-hydrocarbon compounds. Due to their high relative molecular mass and thus high boiling points, they are primarily found in the residue fraction during crude oil processing. Under certain conditions, gums can be converted into asphaltenes. The content of gums and asphaltenes in heavy, gummy oils ranges from 30–40%, while in light oils it is between 5–10%. Additionally, the amount of gums and asphaltenes is related to the aromatic content in crude oil
The distribution of resins and asphalts in petroleum products does not follow a very strong pattern. Different crude oils have different distribution patterns, as the structures of these two substances are particularly complex. The heavier the oil, the higher the content of resins and asphaltenes. It is present in small amounts in gasoline and diesel, and in the highest amounts in residue oil. During crude oil processing, resins and asphalts are primarily concentrated in vacuum residue. According to four-component analysis, the combined content of resins and asphalts (pentane asphalts) in the vacuum residue of crude oils from various regions in China ranges roughly between 25% and 70%. If there is a residue solvent deasphalting process, the gum and asphaltenes are transferred to the deoiled asphalt.
Resins start to appear in the kerosene fraction; as the boiling point of the fractions increases, their content rises continuously, with the highest concentration found in residue. All asphaltenes are concentrated in residue.
Gum and asphaltenes are enriched in residue
Starting from the kerosene fraction, its content increases as the boiling point of the fractions rises; the highest content is found in residue, with almost all of the asphaltenes concentrated in residue. ;P
The distribution of resins and asphalts in petroleum products does not follow a very strong pattern. Because the structures of these two substances are particularly complex, different crude oils have varying distribution patterns. The heavier the oil, the higher the content of resins and asphaltenes. It is present in small amounts in gasoline and diesel, and in the highest amounts in residue oil. During crude oil processing, resins and asphalts are primarily concentrated in vacuum residue. In the vacuum residue of crude oils from various regions in China, the combined content of resins and asphalts (pentane asphalts) ranges roughly between 25% and 70%. If there is a residue solvent deasphalting process, the gum and asphaltenes are transferred to the deoiled asphalt.
The distribution of resins and asphalts in petroleum products does not follow a very strong pattern. Different crude oils have different distribution patterns, as the structures of these two substances are particularly complex. The heavier the oil, the higher the content of resins and asphaltenes. It is present in small amounts in gasoline and diesel, and in the highest amounts in residue oil. During crude oil processing, resins and asphalts are primarily concentrated in vacuum residue. According to four-component analysis, the combined content of resins and asphalts (pentane asphalts) in the vacuum residue of crude oils from various regions in China ranges roughly between 25% and 70%. If there is a residue solvent deasphalting process, the gum and asphaltenes are transferred to the deoiled asphalt.