石油化工高等学校学报

石油化工高等学校学报 ›› 2015, Vol. 28 ›› Issue (3): 17-21.DOI: 10.3969/j.issn.1006-396X.2015.03.004

• 石油化工 • 上一篇    下一篇

亚油酸甲酯氧化衰变特性及氧化反应表观活化能

王学春,  方建华,  陈波水,  吴 江,  李 亮   

  1.         
    ( 后勤工程学院军事油料应用与管理工程系, 重庆4 0 1 3 1 1)
  • 收稿日期:2015-01-19 修回日期:2015-05-28 出版日期:2015-06-25 发布日期:2015-06-23
  • 通讯作者: 方建华( 1 9 7 1 - ) , 男, 博士, 教授, 从事环境友好润滑剂及添加剂的研究; E - m a i l : f a n g j i a n h u a 7 1 2 2 5@s i n a. c o m。
  • 作者简介:王学春( 1 9 9 0 - ) , 男, 硕士研究生, 从事生物燃料的研究; E - m a i l : t c x u e c h u n@s i n a. c o m。
  • 基金资助:
    国家自然科学基金资助项目( 5 1 3 7 5 4 9 1) ; 重庆市自然科学基金资助项目( C S T C, 2 0 1 4 J CY J AA 5 0 0 2 1) ; 后勤工程学
    院创新基金资助项目( Y Z 1 3 - 4 3 7 0 3) 。

Oxidative Deterioration and Apparent Activation Energy  of Oxidation Reaction of Methyl Linoleate

  1. (Department of Military Oil Application and Administration Engineering, Logistical  Engineering University, Chongqing 401311, China)
  • Received:2015-01-19 Revised:2015-05-28 Published:2015-06-25 Online:2015-06-23

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摘要： 为了考察亚油酸甲酯的氧化安定性, 采用自制氧化模拟装置将样品加速氧化, 定时取样检测样品过 氧化值、 酸值和运动黏度( 4 0℃) , 考察了不同温度和氧气流量对氧化速率的影响; 利用傅立叶红外光谱和紫外可见 分光光度计定性表征了亚油酸甲酯氧化前后的结构变化; 通过R a n c i m a t法加速氧化实验, 测定了亚油酸甲酯的氧化 诱导期, 同时从氧化反应活化能角度进一步研究亚油酸甲酯的氧化反应。结果表明, 随氧气流量改变, 亚油酸甲酯 氧化安定性较好, 但随着反应温度的升高, 氧化诱导期缩短, 氧化安定性明显下降; 通过计算得到氧化反应表观活化 能是3 6. 0 0 3k J /m o l 。

关键词: 亚油酸甲酯,  , 氧化安定性,  , 诱导期, 活化能

Abstract: The accelerated oxidation reaction was carried out on an oxidation simulator in order to study the oxidative stability of methyl linoleate. The properties of oxidative oil, such as peroxide value, acid value and kinematic viscosity(40 ℃), were analyzed at intervals of 1 hour. The rate of test sample oxidation was explored under the condition of different temperature and oxygen flow rate. And the oxidation process of methyl linoleate was further characterized through Fourier transform infrared spectroscopy and ultravioletvisible light detector. In addition, the induction period of methyl linoleate was determined by the Rancimat method. The oxidation of oil sample was further studied through determining the reaction activation energy. The results showed that the oxidation stability was well at different oxygen flow rate, but obviously decreases with the increase of temperature. Otherwise, it was consequently demonstrated that the induction period decreased with the increase of temperature, and the activation energy obtained from Arrhenius equation was 36.003 kJ/mol.

Key words: Methyl linoleate,    , Oxidative stability,    , Induction period,    ,  Activation energy

引用本文

王学春, 方建华, 陈波水, 吴 江, 李 亮. 亚油酸甲酯氧化衰变特性及氧化反应表观活化能[J]. 石油化工高等学校学报, 2015, 28(3): 17-21.

Wang Xuechun, Fang Jianhua, Chen Boshui, Wu Jiang, Li Liang. Oxidative Deterioration and Apparent Activation Energy  of Oxidation Reaction of Methyl Linoleate[J]. Journal of Petrochemical Universities, 2015, 28(3): 17-21.

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