摘要
为了实现高效分离不同原油中饱和分、芳香分的目的,开发了以负载银离子填料为固定相的新型原油固相萃取技术,考察该方法分离原油的回收率、单次分离量、分离效率及方法的重复性和普适性。结果表明,采用该方法分离柴油(180~350 ℃馏分)和减压瓦斯油(350~540 ℃馏分)的回收率分别为99.5%和99.3%;该方法对胜利原油的单次分离量和对各单个原油的分离效率分别是石油行业标准方法的47.5倍和36倍;重复试验标准偏差为0.12%,方法重复性较好;分离不同基属的轻质、中质、重质原油得到的饱和分中烷基苯质量分数均小于5%,方法普适性较好。
A new solid phase extraction method,which takes the packing loading silver ion as stationary phase,was developed to separate the saturates and aromatics in crude oils with different properties efficiently. The oil recovery,single processing capacity,separation efficiency as well as repeatability and universal applicability of the method were investigated.The results showed that the recovery of separating diesel fraction(180-350 ℃)and VGO(350-540 ℃)were 99.5% and 99.3%, respectively.The processing capacity and separation efficiency of crude oil are 47.5 times and 36 times,respectively,of that using the support designated in the standard method of petroleum industry.In addition,the standard deviation of repeated experiments was less than 0.5%,indicating a good repeatability of the method.The content of alkyl benzene in saturated fractions from light,medium and heavy crude oil of different base properties was less than 5%,indicating that the method has a good universal applicability.
作者
时圣洁
田松柏
刘颖荣
章群丹
Shi Shengjie;Tian Songbai;Liu Yingrong;Zhang Qundan(SINOPEC Research Institute of Petroleum Processing,Beijing 100083)
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2019年第6期95-98,共4页
Petroleum Processing and Petrochemicals
