生物柴油的氧化安定性  

Oxidative stability of biodiesel

作　　者：耿莉敏[1] 边耀璋[1] 董元虎[1] 田育锋[1] 

机构地区：[1]长安大学汽车学院,陕西西安710064

出　　处：《长安大学学报（自然科学版）》2009年第1期88-90,106,共4页Journal of Chang’an University(Natural Science Edition)

基　　金：国家西部交通建设科技项目(200631826253)

摘　　要：为了考察生物柴油的氧化安定性,通过8 h加速氧化试验,定时取样,分析了氧化油的运动粘度、酸值和过氧化值,并与不同掺混比的生物柴油/柴油混合燃料进行比较。结果表明:生物柴油的氧化安定性比柴油差,两者混合燃料的氧化安定性随生物柴油掺混比的增大而逐渐变差。考察了4种抗氧化剂对生物柴油氧化安定性的影响,通过筛选确定了一种效果良好的抗氧化剂,对生物柴油的氧化具有明显的抑制作用。In order to study the oxidative stability of biodiesel, the accelerating oxidation process for eight hours was carried out to determine the properties of oxidative oil, such as kinematic viscosity, acid value and peroxide value every two hours, they were compared with the ones of biodiesel/diesel blend fuel. The results show that oxidation stability of biodiesel is inferior to mineral diesel, with the increasing of biodiesel mixed ratio, oxidation stability of blend fuel decreases. The influence of four different antioxidants on oxidative stability were examined, an approximate one was found, it can markedly restrain the oxidation of biodiesel. 2 tabs, 8 figs, 8 refs.

关 键 词：汽车工程 生物柴油 加速氧化 安定性 抗氧化剂 

分 类 号：U473.12[机械工程—车辆工程]