A review on bio-lubricants from non-edible oils-recent advances,chemical modifications and applications

The necessity for lubricants has increased recently, and today's chief issue is the depletion of fossil resources, which drives up the cost of lubricants made of petroleum. As a result, current research focuses on lubricants that are made from renewable resources and are therefore environmentally benign. We can use inedible plant oils as the foundation for biodegradable bio lubricants. The locally accessible seed oils have significant uses in agriculture and nutrition, but more recently, their use in biolubricants and chemical feedstocks has increased. They are favourable to mineral-based counterparts and prospective commodities because of their unique qualities, such as lubricity, biodegradability, reduced toxicity, and reduced volatility. However, while being chemically altered, they still have rather poor cold-flow and thermo-oxidative stability concerns, which restricts their use as lubricants. To get around this restriction, numerous chemical changes have been documented, including transesterification, epoxidation, and estolide ester synthesis, all of which are covered in this paper. The current state and anticipated future trends of the global lubricant market are presented in this review. The primary goal of the current study is to provide an overview of recent non-edible plant uses in biolubricant synthesis. This study contains a review of recent research literature on the utilisation of various non-edible plant oils to create biolubricants.