高蜡原油化学清蜡减阻剂的组成及性能  

Composition and property of the additive of chemical paraffin removal and anti-resistance for high waxy crude oil

作　　者：张红[1] 

机构地区：[1]上海工程技术大学化学工程与工艺系,上海201600

出　　处：《化工进展》2013年第12期2973-2976,共4页Chemical Industry and Engineering Progress

基　　金：上海工程技术大学校基金(2011XY24)项目

摘　　要：通过对多种油基清蜡剂进行溶蜡、减阻性能研究，筛选、复配较优化清蜡剂组成，分析了温度、溶剂种类等因素对溶蜡效果的影响。结果发现石蜡的溶解量与溶剂的体积相关性不大，石蜡量应控制在溶剂的饱和溶蜡量以内，此外溶蜡的时间不宜过长，理想时间选择40～100 min之间。既在10 mL溶剂中溶解0.5 g石蜡比较符合实际情况，且加热状态的温度选择在35℃左右较为适宜。同时发现，表面活性剂对石蜡有增溶作用，只有选择HLB值在13～16范围内的表面活性剂才能有利于提高溶剂溶蜡的速度。采用差示扫描量热法（DSC）考察了石蜡的热性能和相变性质。结果表明，温度因素的影响特别显著，且石蜡熔点越高，其相变所需要的能量也越大，当石蜡的熔点44.30℃时，相变能为29.28 J/g。The selection and preparation of optimal component for paraffin removal additive were conducted by paraffin dissolving and resistance reducing to various oil base additives. The influence of temperature and solvent on paraffin dissolving effect was analyzed. The result shows that paraffin dissolved amount has little correlation with the solvent volume. Paraffin amount in solution should be controlled within the saturated amount. In addition,paraffin dissolving time should not be too long and the ideal time can be selected from 40 to 100min. According to the actual situation,0.5 g paraffin dissolved in 10 mL solvent and at heating temperature of 35 ℃ are appropriate. Solubilization by surface active agent has been observed on paraffin. The speed of dissolved paraffin can be improved only when surface active agent with HLB value in the range of 13 to 16 has been selected. The thermodynamic properties and phase change of paraffin were investigated by the DSC. The result shows that the effect of temperature is significant,and that the higher of paraffin melting point,the larger of phase change energy. The phase change energy is 29.28 J/g when paraffin melting point is 44.30 ℃.

关 键 词：高蜡原油 化学清蜡剂 减阻性能 热力学性质 相变 溶解 

分 类 号：TE358.2[石油与天然气工程—油气田开发工程]