Several strategies can be employed to overcome diffusion limitations:
1. Optimizing Catalyst Particle Size: Reducing the particle size can enhance external diffusion, but a balance must be struck to avoid excessive pressure drop. 2. Improving Catalyst Porosity: Increasing the pore size and porosity can enhance internal diffusion by providing shorter diffusion paths and larger pore volumes. 3. Enhancing Stirring or Mixing: Improving fluid dynamics around the catalyst can reduce external diffusion limitations by decreasing the boundary layer thickness. 4. Temperature Control: Higher temperatures can increase the diffusion rates, but this must be balanced against potential thermal deactivation of the catalyst.
