Chapter 2 - Fundamentals of the adsorption process

Abstract

All catalyzed heterogeneous reactions occur on the surface of a solid catalyst. Accordingly, at least one, or all, of the reacting species must come into contact with the surface. Prior to that, however, the reacting species must reach the catalyst surface from the bulk of the fluid. Similarly, after the reaction, the produced species must detach from the surface and then move away from it. In summary, the overall process of heterogeneous catalytic reactions proceeds through a sequence of five individual steps as follows: