摘要
为建立一种简便、快速评定柴油氧化安定性的方法,研制了一种新型柴油氧化安定性评定仪并确定了以氧化诱导期和氧化拐点作为氧化安定性的表征量。通过单因素分析和正交试验研究了影响柴油氧化安定性的因素,确定了最佳试验条件为温度140℃、试样量70mL、氧压700kPa;建立了表征量与140℃可滤出不溶物之间的相关性模型。结果表明,氧化拐点对140℃可滤出不溶物的预测效果良好,该方法具有良好的重复性与区分性,能够较好地评定柴油氧化安定性。
To establish a simple and rapid method for determining diesel oxidation stability,a new type of instrument was developed,the oxidation induction period and oxidation inflection point were used as the symbol of oxidation stability. By means of the single-factor test and orthogonal test,the factors that impact on the diesel oxidation stability are explored. The optimal experimental conditions for the new instrument are 140 ℃,and O 2 pressure of 700 kPa. Meanwhile,a correlation model between the filterable insoluble substance at 140℃ and the symbol was established. The results showed that the oxidation inflection point can be used to predict the filterable insoluble substance at 140 ℃. The method has good repetition and differentiation and can be used for evaluation of diesel oxidation stability.
作者
孟凡坤
宋世远
钱述鹏
熊刚
Meng Fankun;Song Shiyuan;Qian Shupeng;Xiong Gang(Department of Oil,Army Logistics University of PLA,Chongqing 401331)
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2018年第12期81-85,共5页
Petroleum Processing and Petrochemicals
关键词
柴油
氧化安定性
正交试验
相关性
diesel
oxidative stability
orthogonal test
correlation
