The effects of crude oil properties, the structure of PPD and the testing conditions on pourpointdepression were discussed.
讨论了原油的性质、降凝剂的结构及试验条件对降凝效果的影响。
2
Depressionof the pourpoint of diesel oil and improve its fluidity in subzero.
降低各种柴油的冷凝点和冷滤点,提高其低温流动性。
3
The quality of diesel oil producing was advanced by isomery pourpointdepression technique applying in hydrogenation unit in Harbin Petroleum Company Branch of PetroChina.