The performance of a catalyst can be significantly influenced by the presence of macropores:
1. Enhanced Mass Transport: Macropores facilitate the rapid transport of reactants and products, reducing the likelihood of diffusion limitations. This ensures that reactants can quickly reach the active sites and that products can be swiftly removed, thereby enhancing the overall reaction rate.
2. Improved Accessibility: For reactions involving large molecules, macropores provide the necessary space for these molecules to diffuse into the catalyst and interact with active sites. This is particularly important in processes such as fluid catalytic cracking and hydrocracking in the petrochemical industry.
3. Reduced Deactivation: Catalysts with macropores are less prone to deactivation caused by pore blockage, as larger pores are less likely to become clogged with reaction by-products or contaminants. This can extend the lifespan of the catalyst and reduce the frequency of regeneration or replacement.
