几种新型柴油蜡晶分散助剂的研究  

STUDY ON SOME NOVEL TYPES OF WAX CRYSTAL DISPERSER FOR DIESEL OILS

作　　者：张予辉[1] 卓润生[1] 叶天旭[1] 孙颖 

机构地区：[1]石油大学化学化工学院,山东东营257061 [2]石大科技集团,山东东营257061

出　　处：《石油学报（石油加工）》2005年第1期83-87,共5页Acta Petrolei Sinica(Petroleum Processing Section)

摘　　要：为了扩大低温流动改进剂(CFI, Cold flow improvers)T 1804在柴油中的使用范围, 针对 T 1804用于高蜡柴油后出现的蜡晶分散性差的特点, 设计合成了 3 类蜡晶分散助剂并分别与 T 1804 复合使用。结果表明,具有稠环芳烃结构的分散助剂与 T 1804复合使用, 无论是对低蜡或是高蜡柴油均产生了显著的助降冷滤点效果; 分散助剂中烃基链段长度、极性基与非极性基的比例均对其助降冷滤点效果有影响。Three types of dispersants for dispersing wax crystallites in diesel oils were designed and synthesized to expand the application of cold flow improver T-1804 for high wax containing diesel oils. Experimental results showed that dispersants containing structure of fused aromatics compounding with T-1804 performed more effective than T-1804 only when used for diesel oils with either low-wax or high-wax contents for lowing the cold filter plugging point (CFPP). Moreover, all the alkyl chain length and the ratio of polar group and to non-polar group in dispersant affect the ability of dispersants for lowering the CFPP.

关 键 词：蜡晶分散助剂 T-1804 冷滤点 柴油 

分 类 号：TE624.8[石油与天然气工程—油气加工工程]