In the development of Process Synthesis, there has been a need for simple tools that look at new ways of process evaluation and modelling. These tools need to be able to provide a basis for assessment of comparative process options with less rigorous data. This book demonstrates some of Process Synthesis applications from simple experimental techniques to tools for the understanding and analysis of distillation processes (separation with reaction, separation with mixing) using vector formulations. The book contributes to the area of chemical process synthesis by adopting the physical task based approach to process synthesis. i.e., the optimal arrangement of fundamental transformation tasks (physical/chemical) to achieve the processing objective which will define the design of the process and equipments, rather than the other way around. The significance of the contribution of this book is in offering extended fundamental insights in creating process synthesis options for reactive distillation systems, creating the essential structural basis for subsequent mathematical optimization. The book is written for practitioners and instructors in the field of chemical process synthesis.