One-Dimensional Modeling and Simulation of Bubble Column Reactors

Reactor models that feature a practical way to design bubble columns on the semi-industrial or even industrial scale have been published only rarely in the usual scientific literature. Creating a one-dimensional model in the equation-oriented simulation software ASPEN Custom Modeler (TM) (ACM), one can reach a compromise between model precision and modeling - i.e. computational power - based on correlations selected specifically for the application in question. The model quantitatively describes, with sufficient accuracy, the processes in a bubble column reactor. The paper discusses investigations for designing a pilot plant reactor for hydrogenating 2-ethylhexanal as an example of its application. Geometry and operating conditions were optimized, and the results are shown in the form of spatially resolved reaction and temperature profiles.