Improved process engineering in general, and better process design specifically, hold the key to technology advancement in the chemical as well as biological, electronic, and other processing industries. This volume contains the proceedings of the Third International Conference on Foundations of Computer-Aided Process Design, which brought together engineers, scientists and graduate student researchers from a number of industrial, academic and government institutions throughout the world to assess and discuss the current status and future directions of computer aided process engineering. The specific objectives of the conference were to provide a forum for an in-depth review of the current state-of-the-art in chemical process design as well as an introduction to process and product design in other disciplines, an evaluation of current and future needs in process design, a formulation of new research directions in computer-aided process design and an examination of educational needs in chemical engineering design.