The research on the low temperature pumpability of oil shows that the pour point depressant has the remarkable improvement;It is difficult to solve the high temperature antifoaming of .

• 对油品低温泵送性能的研究表明,降凝剂具有明显改善作用;传统的抗泡剂已很难解决润滑油的高温抗泡沫问题,如何有效解决该问题正成为研制、生产高档油的一个挑战。