[1]李会朵,梁静华,朱峰,等.成品油混油掺混实验与临界比例计算[J].油气储运,,30():180-182.[doi:10.6047/j.issn.1000-8241.2011.03.006]
Li Huiduo,Liang Jinghua,Zhu Feng,et al.Mixing experiment and critical proportion calculation for contamination of products[J].Oil & Gas Storage and Transportation,,30():180-182.[doi:10.6047/j.issn.1000-8241.2011.03.006]
[摘要]混油处理是成品油长距离输送管道运行管理的关键环节之一。基于将混油以掺混的方式部分或全部回掺到纯净油品中的混油处理方法,以 GB 17930-2006《车用汽油》和 GB/T 19147-2003《车用柴油》规定的质量控制指标和测试方法为依据,结合国内顺序输送管道运行的实际情况,针对特定管道开展了顺序输送油品的掺混实验。结果表明:在柴油中掺入汽油,对掺混比例最敏感的质量项目是闭口闪点;在汽油中掺入柴油,受到显著影响的质量项目有终馏点、研究法辛烷值、抗爆指数,而终馏点的敏感性表现最突出。依据测试结果,以敏感质量项目为控制目标,推荐了生产实际可采用的临界掺混比例计算公式。
[中图分类号]TE86[文献标志码]
A [doi]A
[Abstract]Contamination treatment is one of the key links of operation management for long-distance products pipeline. Based on the method of mixing some or all contamination back to the pure oil,according to the quality control indicators and testing methods regulated by GB 17930-2006 motor gasoline and GB/T 19147-2003 motor diesel fuel,combined with the actual operating situation of batch transportation pipeline in China,a mixing experiment of batch transportation oil is carried out for the particular pipeline. The results show that in diesel mixed with gasoline,the most sensitive quality item to mixing proportion is the closed flash point;in gasoline mixed with diesel,the significant influence on quality item is final boiling point,research octane number,anti-explosion index,and the sensitivity of the final boiling point is the most prominent. According to the testing results,critical mixing proportion calculation formula available for the actual production is recommended with the sensitive quality item as the control target.
在同一条管道内顺序输送多种油品时,相互接触占总输油量的 0.95%(表 1)。的两种油品界面间产生混油不可避免。混油的处理是
管道运行的关键环节之一,我国主要采用两种方法:一是在管输油品具有质量潜力和保证油品被掺混后质量指标合格的前提下,将混油以掺混的方式部分或全部回掺到纯净油品中,可以通过比例泵将已经切入混油罐中的混油注入至主管道中,随纯净油品进入储罐中,与纯净油品掺混;或者以一定比例将混油头、尾的少量混油直接切入前、后行油品储罐,借助后续输入的纯净油品对其进行自然掺混。二是采用拔头装置
对汽柴混油进行分离,在条件允许的情况下,亦可将混油送至炼厂进行分离。相比较而言,采用油品掺混的方式处理全部或部分混油,不仅操作简单,而且成本低,是一种行之有效的方法。
【参考文献】
[1] 邓松圣,蒲家宁.对流扩散方程在成品油顺序输送混油分析中的应用[J].应用数学和力学,1998,19(8):50-57.
?[2] 杨筱蘅,张国忠.输油管道设计与管理[M].东营:石油大学出版社,1996:297-303.