The process of pyrolysis in biomass has emerged as a promising technique for the transformation of renewable biomass into valuable energy products, including biofuels, energy, and waste management. The pyrolysis process yields a range of products that can be applied in various fields, including transportation, power generation, and chemical manufacturing. This book aims to optimize process parameters, understand reaction kinetics, enhance product yield and quality, and explore potential applications of the end products. The book includes chapters on fundamental principles, efficient reactor design, product composition and properties analysis, and economic and environmental feasibility assessment of pyrolysis systems. Additionally, the book provides detailed information on biomass characterization, biochar production, and their applications in agriculture and industry. It also covers life cycle assessment to ensure a comprehensive understanding of the topic. This book is a valuable resource for researchers, scientists, academics, and industrial professionals working in the fields of agricultural waste management, biofuel production, and biorefinery, providing unique insights and perspectives on these important topics.