Abstract
A flat-plate microreactor was designed, examined and modelled for the on-board hydrogen generation via the ammonia decomposition reaction over CoCeAlO mixed oxide catalyst. The tested catalyst was synthesised and immobilised using an inkjet printing-assisted self-assembly method. Inkjet printing technology is proved to be an efficient way for the direct synthesis, deposition and rapid screening of heterogeneous catalysts. A series of kinetic experiments were performed to analyse the influence of reaction temperature and NH3 flow rate on the microreactor performance. Two kinetic rate expressions were developed based on the conversion data and implemented in the CFD model. The simulation results showed good accuracy with respect to the experimental data, and the kinetic models could effectively predict the reacting flow properties along the microchannel. The microreactor is especially designed to operate under the kinetic-control conditions with negligible mass transfer resistance. Furthermore, the proposed design eases the assemblage and disassemblage of the microreactor components, and the probing of fresh catalysts for kinetic studies.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call