Numerical modelling and performance studies of the original and advanced TEMKIN reactor in laboratory scale testing of industrial egg shell catalysts for the selective hydrogenation of acetylene

摘要: Abstract Strong interactions between reaction kinetics and transport phenomena force the use of specialised reactors for catalysis experiments. Our working group developed an advanced version so called TEMKIN reactor by Temkin Kulkova (1969) , intended direct testing industrial catalysts, e.g. egg shell catalysts used selective hydrogenation acetylene. This work is dealing with modelling complex mass heat to investigate evaluate influence on kinetics. Modelling was done using commercial software COMSOL Multiphysics ® successfully validated pulse tagging as well Due flexible coupling possibilities in COMSOL, distinguishes free gas phase, catalytically active porous inert core catalyst pellets, ab initio depicting inner outer limitations. Simulations confirmed good isothermal conditions both versions, but point out significant limitations original due dead zones near pellets. Although numerical still challenging high computational demands, this able show up its potential studying laboratory scale designs catalytic systems.