This text investigates the technical challenges and chemical methodologies required for the effective desulfurization of heavy oils, residua, and bitumen in modern refinery operations. James G. Speight, a recognized authority in petroleum science, synthesizes decades of research to address the increasing necessity of processing high-sulfur feedstocks. The book provides a comprehensive framework for understanding the chemical composition of heavy crudes and the catalytic processes essential for sulfur removal. It serves as a technical reference for engineers and researchers tasked with optimizing refinery efficiency while adhering to environmental regulations.

Experts in the field of chemical engineering identify this work as a foundational technical resource for refinery process design. Readers frequently note the high density of the chemical data and the practical focus on industrial application.