1. High Conversion Rates: PFRs can achieve higher conversion rates per unit volume compared to CSTRs because of the higher reactant concentrations at the reactor inlet. 2. Predictable Performance: The plug flow behavior allows for predictable and consistent performance, making it easier to scale up from laboratory to industrial scale. 3. Efficient Use of Catalysts: The uniform flow ensures that the catalyst bed is used efficiently, minimizing hotspots and ensuring uniform catalyst utilization.