Process intensification uses innovations in the design of equipment and processes to create more efficient, safer, and less wasteful chemical processes. Working on principles of avoiding unnecessary extras, reducing the size of set ups and tightly controlling reactions, there are benefits both in sustainability and in the economics of the processes.Beginning with basic chemical engineering principles for chemists and those who need a refresher, this textbook aims to teach process intensification to green chemistry newcomers and chemical engineering students. Based on the authors' own courses and teaching experience, with worked examples, end-of-chapter learning outcomes and problem sets with solutions, plus real-world case studies scattered throughout, this text is ideal for advanced undergraduate and graduate course use.