管输哈萨克斯坦混合原油轻石脑油馏分适宜加工方案分析  

Analysis of appropriate processing scheme for naphtha from pipeline Kazakhstan mixed crude oil

作　　者：张远欣[1] 陈小龙 向彬帮 王一凡 王建瑞 

机构地区：[1]兰州石化职业技术学院,甘肃省兰州市730060 [2]中国石油兰州石化分公司,甘肃省兰州市730060

出　　处：《炼油技术与工程》2013年第5期17-19,共3页Petroleum Refinery Engineering

基　　金：甘肃省高校基本科研业务费专项资金资助项目(甘财教[2012]129号);甘肃省高等学校研究生导师科研项目<甘财教[2012]90号(1216-03)>;兰州市研政产合作项目<兰财建[2012]151号(2012-02-98)>

摘　　要：哈萨克斯坦原油是国内西北口岸进口的主要原油,实沸点切取不高于145℃馏分按重整原料的指标进行性质分析,表明馏分链烷烃质量分数高(59.41%)、芳烃质量分数低(6.77%)、芳潜低(31.69%),不适宜做重整原料。选取不超过180℃馏分按直馏汽油指标进行性质分析,表明馏分链烷烃质量分数高(63.65%)、芳烃质量分数低(8.34%)、芳烃指数(BMCI)低(16.23%)、辛烷值(RON)低(58.8),不适宜调合汽油。通过高精度小型模拟实验装置对馏分进行乙烯原料模拟评价,在裂解压力为0.1 MPa,w(水)∶w(油)为0.55、温度为890℃、停留时间为105 ms的条件下,裂解产物中三烯收率达48.04%,乙烯收率为28.63%,表明管输哈萨克斯坦混合原油不高于180℃轻石脑油馏分适宜做乙烯裂解原料。Kazakhstan crude oil is the main crude oil in crude oils imported through the Northwest of China.The property analysis on the index of reforming feedstock of true boiling point lower than or equal to 145℃ shows that the distillation fraction cannot be used as the feedstock of catalytic reforming because of its high content of alkane（59.41%）,low aromatics（6.77%）and its lower latent aromatics（31.69%）.The analysis of ≤180 ℃ true boiling point fraction based upon specifications of straight-run gasoline demonstrates that this fraction is not good to be blended into gasoline because of its high alkane（63.65%）,low aromatics（8.34%）,low BMCI（16.23%）and low octane number（58.8）.The simulation tests of this fraction under the conditions of 0.1 MPa cracking pressure,0.55 water to oil ratio,890 ℃ temperature and 105 ms residence time,the olefins（ethylene,propylene and butylene） yields in cracking products is as high as 48.04%.The ethylene yield is 28.63%,which indicates that the light naphtha fraction from Kazakhstan mixed crude oil is a good feedstock for ethylene crackers.

关 键 词：哈萨克斯坦混合原油 不高于145℃馏分 重整原料评价 不高于180℃馏分 裂解性能评价 

分 类 号：TE624[石油与天然气工程—油气加工工程]