This subject is geared towards senior undergraduate students with interests in the design and optimization of process reaction vessels in the chemicals/petrochemicals, biological/food as well as materials/minerals processing industries. Topics covered include, analysis of complex industrial reaction kinetics, effect of micromixing on reactive systems, non-isothermal reactor design, nonlinear analysis in reaction systems, catalytic processes, multiphase (gas-liquid-solid) reactors for single and multiple reactions, strategies for reactor optimization and case studies in industrial process reactor design and operation. The course is also suitable for Masters and PhD research students working in chemical, environmental and biological reaction engineering.