This book confers a comprehensive discussion on the production and biorefining of biocrude oil derived from second- and third-generation biomass feedstocks. It discusses about the concept of biorefinery—fundamentals, biorefining raw materials, and feedstocks and its associated challenges. The book emphasizes on the 3rd-generation biorefining feedstock (algae) as an emerging feedstock for the biorefineries. In addition, co-feedstocks employed in biorefinery are also deliberated. It also presents various thermochemical conversion approaches such as hydrothermal...