Alkali-Modified Boehmite for Acid Removal in Waste Transformer Oil

Abstract

Abstract Transformer oil plays a critical role in ensuring the insulation and normal operation of power transformers. However, during operation, the transformer oil would undergo oxidation and degradation, leading to the formation of acids and polar compounds that increase its acidity and degrade its performance. Recycling and reclamation of aged transformer oil are necessary to prolong transformer lifespan and mitigate risks. Adsorption separation is a preferred method for regeneration, offering simplicity and high efficiency. This study focuses on impregnated boehmite as an adsorbent for acidity removal in waste transformer oil. The effects of impregnation amount and calcination temperature on acidity removal are investigated, along with a comparative analysis of other adsorbents. The findings contribute to the development of sustainable methods for regenerating transformer oil, ensuring efficient and environmentally friendly operations.