Chemical Engineering plays a central role in solving today’s industrial and environmental challenges. Drawing on over 35 years of university teaching, research, and practical experience, this class is designed to give students a solid and applied understanding of core Chemical Engineering concepts and how they are used in real systems. The class covers key topics such as chemical reaction engineering, catalysis and kinetics, heat and mass transfer, separation processes, process design, and environmental pollution control. Emphasis is placed on practical examples, industrial relevance, and problem-solving approaches commonly encountered in academic research and professional practice. This course is ideal for students, young professionals, and researchers who want to strengthen their fundamentals while understanding how Chemical Engineering principles are applied to environmental protection, process optimization, and sustainable technologies.