Crude oil pour point depressants are usually a type of substance that can lower the pour point ofpetroleum and oil products and improve their low-temperature fluidity.
2.1 EVAmodification
Treatment for paraffinic crude oil with carbon chain length between C18-C24 or diesel
2.2 Polymethacrylate
Treatment for paraffinic crude oil with carbonchain length between C18-C20 or diesel
2.3 Maleic anhydride copolymer
Treatment for paraffinic crude oil with cabonchain length betweenC20-C30 at low dosage
2.4 Nitrogenous polymer
Treatment for paraffinic crude oil with carbon chain length more than C30 at low dosage
| No | Item | Indicator | Test result |
| 1 | Appearance (25℃) | Light yellow-reddish brown liquid/solid | Reddish brown liquid |
| 2 | Density (25℃), g/cm³ | 0.85-0.95 | 0.88 |
| 3 | Flash point, ℃ | >25 | 28 |
Crude oil pour point depressants are usually a type of substance that can lower the pour point ofpetroleum and oil products and improve their low-temperature fluidity. Its mechanism of actionmainly includes:
Lowering the freezing point: By changing the physical and chemical properties of crude oil, itcan maintain good fluidity at low temperatures.
Improve liquidity: reduce the flow resistance of crude oil in pipelines and improvetransportation efficiency.
