Biodiesel as feasible petrol fuel replacement: a multidisciplinary overview

Biodiesel is a sustainable, non-toxic, biodegradable diesel fuel substitute that can be employed in current diesel car infrastructure without major modifications in the engines. It has a significant added value compared to petroleum-based diesel, reflected in a series of improved properties including fewer carcinogenic particulate matter emissions, increased lubricity and biodegradability as well as ease of handling, transport and storage. Nevertheless, it is essential that the biodiesel life-cycle is environmentally sustainable, economically viable, and socially acceptable; views that can only be properly analysed by means of a multi-angle approach. In this contribution, we aim to provide a multidisciplinary perspective on key issues for the successful implementation of biodiesel as a petrol fuel replacement including green chemistry methods to improve production and quality, the use of energy crops and feedstocks for second-generation biodiesel as well as socio-economic studies and the importance of governmental regulatory issues.