摘要
以海鸥4号分散剂和华北原油的混合物为对象,采用t检验比较法研究基于诊断比值的油指纹鉴别,旨在考察溢油分散剂对原油指纹的影响。首先,对分散剂及4个油样的GC-FID气相谱图进行比较,表明分散剂的加入会影响原油的谱图;然后,对油样中正构烷烃(包括姥鲛烷和植烷)的相对含量分布进行研究,结果显示分散剂的加入改变了原油中正构烷烃(包括姥鲛烷和植烷)相对含量的分布,且影响明显;最后,采用t检验法对两两油样进行鉴别比较,发现添加不同量分散剂的原油与初始原油之间及它们彼此之间的指纹均不一致。诊断比C17/Pr和C18/Ph受分散剂的影响最大,Pr/Ph和C17/C18受分散剂影响较小,而(C23+C25+C27+C29)/(C24+C26+C28+C30)和(C19+C20)/(C19+C20+C21+C22)受分散剂影响最小。因此,溢油指纹鉴定需要考虑分散剂的影响。
The research objects are the mixture of Huabei crude oil with Haiou 4# dispersant, and their oil fingerprint identificationbased on diagnosis ratios was finished by t-test analysis to study the effect of the dispecsant on crude oil fingerprint. Firstly, GC-F1Dehromatograms of dispersant and 4 oil samples are compared,and the comparison result shows that the addition of dispersant will influ-ence the ehronmtogram of erode oil. Secondly,the relative content of the n-alkanes （ including pristane and phytane, Pr and Ph） in 4 oilsamples is studied,and the result indicates that the addition of the dispersant will change the original relative content distribution of then-alkanes＂ （ including Pr and Ph）in crude oil,and the iulluenee is extraordinarily obvious. Finally, each two samples are compared by t-test,ar, d the results manifeste that the fingerprints of 4 oil samples adding different amount of dispersant are different each other,andthey are different from the fingerprint of Huabei crude oil. The effects of the dispersant on CmT/Pr and Cls/Ph are the greatest,the influ-ences of it on Pr/Ph and C17/C18 are greater, and its influences on （C23＋C25＋C27＋C29）/（C24＋C26＋C28＋C30）andC19＋C20）/（C19＋C20＋C21＋C22）are the least. Therefore,the effect of dispersant on oil spill fingerprint identification needs to be considered.
出处
《西安石油大学学报（自然科学版）》
CAS
北大核心
2016年第1期110-115,共6页
Journal of Xi’an Shiyou University（Natural Science Edition）
基金
国家自然科学基金(编号:41206095
21207010)
教育部博士点基金(编号:20122125120010)
关键词
溢油分散剂
油指纹
T检验
oil spill dispemant
oil fingerprint
T-test
