Aside from the scale-up of existing production, significant issues are not foreseen in the supply of conventional solid adsorbents (i.e., zeolites, activated carbons, and silicas and aluminas). Adsorbents such as metal-organic frameworks (MOFs), functionalised porous materials, and nanomaterials, are receiving significant research interest. However, the large scale production (i.e., 1 tonne per batch per day) of materials that show promise is at least a decade away. Also, it is not understood whether every novel adsorbent can be scaled up while maintaining laboratory scale properties.