Textbook in PDF format This book examines the growing interest in gasification technology, which has become the primary route for effectively utilizing solid carbonaceous material for energy generation and syngas production. The thermochemical conversion of solids, including pyrolysis, combustion, and gasification, has become a primary method for extracting energy and value-added chemicals. However, gasification technology is the most efficient and economical way to utilize solid fuel. Understanding the gasification process and its diversified applications is essential for making gasification technology sustainable in the future