Which outcome occurs when a catalyst particle size increases in a fixed-bed reactor during continuous reaction?

💡 Explanation

When catalyst particle size increases, the diffusion path length within the porous catalyst increases, leading to higher internal diffusion limitations which restricts reactant access and slows the effective reaction rate. Therefore, lower rate caused by internal diffusion results, rather than altered pressure drop, heat transfer, or selectivity effects related to other mechanisms.

• Which consequence results when carbon nanotubes experience oxidation?
• Which risk increases when a turbine engine experiences surge?
• Which mechanism causes increased drag when lubricating oil degrades inside an engine?
• Which consequence results when applying an inaccurate basis set during ab initio molecular dynamics simulations?
• Which phenomenon causes signal fading when polarized radio waves encounter misaligned receiver antennas?
• Within a hard drive read head, which mechanism corrupts data when thermal limits are exceeded?