ABSTRACT
Reactive absorption has been postulated as a green technology due to the fact that this technology can reduce the environmental impact of different synthesis and separation processes. Reactive absorption is a type of reactive separation process, where the chemical reaction is carried out in the interface liquid-gas. The synthesis of chemical compounds using this technology is intended to improve the conversion of the reaction by eliminating one of the reactants in the liquid phase. However, most of the applications of reactive absorption processes are related to separation of complex gas mixtures, where the effectiveness of this technology due to reaction drive force is dramatically increased. This chapter provides the reactive absorption principles, conceptual design, classification, advantages and disadvantages as well as the main application of this technology in different upgrading process. In addition, insights in the modeling and the simulation of the reactive absorption process are described. Finally, a very interesting case study developed by Singhal et al. for the purification of flue gas rich in CO2 is presented based on a problem that this gas represents today for the world.
