Packed bed reactors, also known as fixed bed reactors, are often used for catalytic processes. Pictured below is a fixed bed reactor used in a synthetic process. Magnetic crystallite thermometry has been used to measure the average nickel crystallite temperature in packed bed reactors during ethane hydrogenolysis, an exothermic reaction. Granular catalysts of various sizes have been loaded into the micro packed-bed reactor and several classical heterogeneous gas-liquid reactions have been performed, including hydrogenation reactions.
The Packed Bed Reactor Experiment (PBRE) studies the behavior of gases and liquids when they flow simultaneously through a column filled with fixed porous media. Monitor the distribution of liquids and flow patterns throughout a packed bed or a packed column using electrical process tomography. Achieving an even flow distribution in large packed bed reactors is critical to their performance. Details of heat transfer in packed bed. The velocity profile has a peak near the wall, since the particles are packed more loosely in this region than in the rest of the tube. Temperature and velocity profile of packed- bed tube reactor.
This paper distinguishes between the two types of temperature excursions in adiabatic packed bed reactors, the hot spot and the unstable temperature runaway. A first-order, irreversible reaction takes place in two isothermal packed bed catalytic reactors; their lengths are 14 m and 21 m.