1. Introduction 2. Alkylation catalysts and general operation parameters 3. Reaction Thermodynamics 4. Transport behaviors 5. Reaction mechanism This chapter will give the general reaction mechanism for the alkylation. 6. Reaction kinetics 7. Reactors, Catalysts deactivation and regeneration 8. Process intensification 9. Industrial alkylation process and safety 10. Acknowledgements 11. References