pour point depressant

常见例句

At the delivery of crude oil process, the main research of the pour point depressant for crude oil the role of low-temperature fluidity.
在原油的输送过程中，主要研究了降凝剂对原油低温流动性的作用。
The working principle of pour point depressant and the influencing factors on its effect are introduced, as well as the main types of domestic products and their application situation.
介绍了降凝剂的作用机理、降凝效果的影响因素，以及目前中国使用的主要国产降凝剂品种及应用现状。
The characteristic groups of polymeric pour point depressant(PPD)were analyzed by FT-IR and NMR techniques. The crystallization properties of various types of wax and PPD were measured by XRD.
采用红外光谱仪、核磁共振波谱仪对聚合物的合成特征基团进行了表征，并采用X射线衍射仪对不同型号蜡及降凝剂的结晶性能进行了分析测试。