Tubular Reactor with Nonisothermal Cooling Jacket

Application ID: 19835

This example uses the Transport of Diluted Species and Heat Transfer in Fluids interfaces as available in the COMSOL Multiphysics base package to study an elementary, exothermic, irreversible reaction in a tubular reactor (liquid phase, laminar flow regime). To keep its temperature down, the reactor also uses a cooling jacket with a nonisothermal coolant temperature. The coolant is modeled with a Coefficient Form Boundary PDE. The steady-state behavior of the reactor is investigated.

The reaction taking place in the tubular reactor is propylene oxide (A) reacting irreversibly with water (B) to form propylene glycol (C):

A + B -> C

Since water is the solvent and present in abundance, the reaction kinetics are described as first order with respect to propylene oxide:

R = k*C_A

This application solves the example by S. Fogler in Elements of Chemical Reaction Engineering 4th ed., (Prentice Hall, 2005), p. 557 (Example 8-12 Radial Effects in Tubular Reactor)

This model example illustrates applications of this type that would nominally be built using the following products:

COMSOL Multiphysics®