The modern society needs clean and efficient technologies for the transformation of energy and it needs high performance materials for several applications including automotive, biomedical, electronic, environmental, aerospace, etc.We also require efficient methods for the production of food and we expect to live in a clean environment, characterized by a sustainable use of the natural resources.Whatever the solutions for these needs, they involve in a way or in another - chemical transformations.Therefore the modern society needs Chemical Engineering, whose principles are at the basis of all transformation processes of matter and energy.