Mercury porosimetry and porometry provide the critical meso , macro , and through pore insights needed to understand how catalyst bodies behave under real operating conditions. These techniques characterize the pore networks that control bulk transport, pressure drop, mechanical strength, and the ability of shaped catalysts: pellets, extrudates, and monoliths to withstand thermal and mechanical stress. By resolving pore size distributions far beyond the range of gas adsorption, they reveal how macropores and transport channels influence diffusion, accessibility, and overall reactor performance.

Through-pore and flow-based measurements complement intrusion data by quantifying how interconnected the pore network truly is, enabling researchers to evaluate permeability, tortuosity, and structural integrity. Together, these methods provide a complete picture of catalyst form-factor behavior, ensuring that supports and shaped bodies deliver consistent mass transport, durability, and performance across activation, cycling, and scale-up.