梯度黏度法研究重质船用燃料油稳定性  

STUDY ON STABILITY OF HEAVY MARINE FUEL OIL BY GRADIENT VISCOSITY METHOD

作　　者：刘名瑞[1] 项晓敏[2] 张会成[1] 薛倩[1] 

机构地区：[1]中国石化抚顺石油化工研究院,辽宁抚顺113000 [2]中国石化燃料油销售有限公司

出　　处：《石油炼制与化工》2015年第11期96-100,共5页Petroleum Processing and Petrochemicals

摘　　要：介绍了一种以水上油为低成本调合组分的重质船用燃料油调合方法,并提供梯度黏度法对其稳定性进行研究。梯度黏度法以快速老化的方式模拟重质船用燃料油在存储过程中的性质变化,用老化后燃料油的下层与上层密度、黏度差、酸值、总沉积物检验燃料油的储运稳定性,并将黏度差作为判断燃料油稳定性的主要指标。结果表明,水上油与沥青、煤柴油、页岩油调合时的比例最高不超过17%,才能保证燃料油的稳定性要求。同时,快速老化条件为120℃下处置10h时,燃料油性质状态与常温下处置15天时相近。To reduce the production cost of marine fuel oil, the light oil from mid-temperature coal tar （coal-light oil） was used as a low-cost blending component, and therefore the blending method was studied. The gradient viscosity method, which simulates the property changes of heavy marine fuel oil in the process of storage after rapid aging, was established. Four factors of gradient density difference, viscosity, acid number, total deposits after rapid aging were used as stability indices. Among of them, the viscosity difference was taken as the major indicator to determine the stability of the blending system. The results show that the highest proportion of coal-light oil which can mix with asphalt, diesel from coal tar and shale oil is no more than 17% to ensure the stability of fuel oil. It is found that the properties of the samples after rapid aging for 10 h at 120 ℃ are similar to that of samples aged for 15 days at room temperature.

关 键 词：燃料油 稳定性 梯度黏度法 评价方法 

分 类 号：TE626.2[石油与天然气工程—油气加工工程]