Fishhook Characteristics of Biodiesel Lubricity During Autoxidation

• DOI: 10.2139/ssrn.4184218
• Publication Date: 2022-08-09T08:25:13Z
• Authors: Yuzeng Zheng; Fashe Li; Huicong Zhang; Shuang Wang; Zhongjin Zhao; Wenchao Wang; Renyi Chen
• Keywords: Lubricity; Autoxidation

The effects of light, ventilation and antioxidant on biodiesel performance the corresponding influence mechanisms are investigated during long-term storage. exhibits slow autoxidation its physical/chemical properties change Light conditions can accelerate oxidation biodiesel, thereby aggravating degradation. During process grinding spot diameter firstly decreases from 165.01 μm to 131.45 then increases 362.5 μm, similar shape a fishhook. initial storage stage, fatty acid methyl ester in is decomposed into carboxylic small molecular substances such as aldehydes ketones, improving lubricity reducing diameter. After storage, insoluble resins sediments generated, causing an increase Specifically, kinematic viscosity increased 4.407 mm 2 /s even under dark sealed conditions.