Study on the Preparation of Natural Ester Insulating Oil from High-Acid-Value Waste Cooking Oil Based on Multi-Stage Coupled Refining Process
Abstract
天然酯绝缘油由植物油毛油经精炼和改性制备而成，来源过度依靠油料作物。废弃油脂劣化严重，劣化产物复杂且含量较大。以其为原料制备天然酯绝缘油面临严峻挑战。本文通过废弃油脂精炼制备了一种天然酯绝缘油，将酸值从21.04 mg KOH/g降低到0.024 mg KOH/g，介质损耗因数（90℃）从1.335降低到0.0197，工频击穿电压从27.9 kV提高到72 kV。制备的绝缘油理化电气性能满足天然酯绝缘油使用标准。本研究立足资源循环利用，为天然酯绝缘油的获取提供了新途径。
Fields of Study & Subjects
Power Transformer Diagnostics and Insulation
Biodiesel Production and Applications
Lubricants and Their Additives
Publication details
- Journal / source
- JOURNAL OF ENGINEERING STUDIES
- Publication date
- 1 March 2026
- Language
- EN