一种多元酯类柴油低温流动改进剂的合成与应用  

SYNTHESIS AND APPLICATION OF A POLYESTERS DIESEL FUEL LOW-TEMPERATURE FLOW IMPROVER

作　　者：马志研[1] 龙小柱[1] 田彦文[2] 张永峰 侯凤[1] 

机构地区：[1]沈阳化工学院,辽宁省沈阳市110142 [2]东北大学,辽宁省沈阳市110142 [3]山东东明石化集团化工设计有限公司,山东省菏泽市274500

出　　处：《炼油技术与工程》2008年第5期51-54,共4页Petroleum Refinery Engineering

基　　金：辽宁省教育厅科学基金(No.2005329)

摘　　要：介绍了一种多元酯类柴油低温流动改进剂的合成和应用。该剂以季戊四醇、柠檬酸、硬酯酸、十八醇为原料,以二甲苯和硝基苯为溶剂,以对甲苯磺酸为催化剂,由酯化反应制得。通过核磁和红外表征,表明所合成的产物与设计的分子结构吻合。讨论了加剂量,加剂温度,混合时间对该剂使用效果的影响。结果表明:该剂对山东东明石化集团化工设计有限公司0号柴油冷凝点降低20℃,冷滤点降低可达5℃,对其它柴油也有一定效果。The synthesis and application of a polyesters diesel fuel low-temperature flow improver are introduced. The improver was synthesized with pentaerythritol, citric acid, stearic acid, octadecanol as raw materials, dimethylbenzene and nitrobenzene as solvent and p-toluenesulfonic acid as catalyst. And the structure was further confirmed by ^1H NMR and IR. The impact of dosage, mixing time and mixing temperature on the performances of the improver was discussed. When the improver was applied in the No. 0 diesel fuels of Shandong Dongming Petrochemical Group Co. , the CFPP and SP of the No. 0 diesel fuels were lowered by 5 ℃ and 20 ℃ respectively. The improver is also applicable to other diesels

关 键 词：季戊四醇 硬酯酸 柠檬酸 低温流动改进剂 酯化 冷滤点 

分 类 号：TE624.81[石油与天然气工程—油气加工工程] TQ015.9[化学工程]