Using a Two-Stage Microcapillary Reactor for the Kinetic Investigation of Esterification Reactions

A two-stage microreactor for kinetic parameter determination is investigated, with reaction progress monitored via NIR between stages and GC at the outlet. The system integrates an integral and a differential reactor to ensure well-defined conditions. Mass and heat transport analysis confirms ideal reactor behavior. This enables kinetic data determination for the acid-catalyzed esterification of acetic acid with methanol, showing consistency across reactor sections and alignment with literature values. Due to excellent heat transfer and reactor validity, the runaway-prone reaction between acetic anhydride and methanol is also studied, demonstrating strong agreement with literature data.