Porous materials such as zeolites and metal organic frameworks (MOFs) are of growing importance as materials for energy-related applications, such as carbon capture or gas storage. We have developed partial differential equations-based tools that perform analysis of porous materials. These tools involve the application of the Fast Marching Method (FMM) to predict if a molecule can traverse through a channel system representing void space of the materials, map accessible parts of these void spaces and calculate accessible volumes and surfaces.