Principles of chemical engineering is a technical basic course on chemical processing, which provides a scientific foundation for the process industry (including chemical industry, light industry, medicine, food, environment, materials, metallurgy and other industrial sectors) and supports the development of chemical engineering and similar disciplines. The Principles of Chemical Engineering course focuses on the basic principles of unit operation in chemical production and the design, operation and regulation of its equipment. With the principle of transfer process and research methodology as the main line, the course studies the basic laws of each physical process, the design method of typical equipment, and the principle of operation and regulation of the process.