Viscosityreductant PJ was prepared by high temperature oxidation degradation of polyacrylonitrile (PAN) waste and its properties were studied.
用腈纶废料高温氧化降解制成PJ降粘剂，并检测其理化特性及表征。
2
HEA is a new type of temperature-tolerant viscosityreductant for heavy crude oil. It comprises a specialtemperarure-tolerant surfactant and a variety of additives.
新型耐高温乳化降粘剂HEA系由特种抗高温的表面活性剂和多种其它添加剂组成。
3
JNJ - 3 viscosityreductant for quench oil was developed on the basis of analyzing reasons for viscosity increase of quench oil in ethylene plant and its reaction mechanism.