Higee Chemical Reaction Engineering systematically discusses the fundamentals, principles, and methods of molecular mixing and reaction process intensification. The book demonstrates the implementation approach, process, and effectiveness of Higee chemical reaction engineering through novel industrial case studies that help industrial technicians select reaction intensification technology route more scientifically. Sections cover the innovation and development process of Higee chemical reaction engineering, hydrodynamics behavior in Higee reactors, equipment design principles and methods, multiphase reaction of liquid-liquid, gas-liquid, gas-solid, gas-liquid-solid and reactive crystallization process intensification principles and effectiveness. Higee Chemical Reaction Engineering is a systematic summary of several national award and key projects, such as the State Technological Innovation Award, State Science and Technology Advancement Award, National Natural Science Foundation of China, National key R&D Program of China, National ‘‘863’’ Program of China, National ‘‘973’’ Program of China, and also some international cooperation.