Review of Waste Cooking Oil (WCO) as a Feedstock for Biofuel—Indian Perspective

A detailed review was conducted to explore waste cooking oil (WCO) as feedstock for biodiesel. The manuscript highlights the impact on health while using used and scope revenue generation from WCO. Up a 20% blend with diesel results in less pollutants, it does not demand more modifications engine. Also, this reduces country’s import bill. Furthermore, suggests alternate sustainable income among rural farmers through circular economy. Various collection strategies are discussed, SWOC (strength, weakness, opportunity, challenges) analysis is presented aid understanding different countries’ policies regarding of WCO, suitable method conversion pronounced. techno-economic viability producing 1 litre cost WCO-based biodiesel compared costs Iran Pakistan, noticed that difference them than 1%. Life cycle assessment (LCA) mandatory reveal WCO socio-economic environmental concerns. Including exergy will provide comprehensive information about production justification