Technical adsorbents are either already used in adsorption processes or are highly suitable for such applications based on earlier development successes. In order to evaluate materials for their suitability towards technical adsorption, we are differentiating between two analytical methods and parameters:
- Standard- / Texture-Analysis (such as BET-surface area and pore size distribution)
- Technical availability of adsorption capacity (measured under real or close to real conditions of analytical gases and mixtures as well as pressure and temperature)
Technical adsorbents include activated carbons and cokes, zeolites, molecular sieves, silica gels and activated clay soils. Metal-organic frameworks (MOFs) as well as other synthetic, high-porous materials, an extra category can be found on this homepage under the field of applications for “Synthetic Adsorbents and MOFs”. Technical adsorbents as a whole are used in industrial practices mostly in the form of granules, while their development in research usually results in powders. The article “Dynamic and equilibrium-based investigations of CO2-removal from CH4-rich gas mixtures on microporous adsorbents” published in Adsorption by A. Möller et al. features the combination of characterizing pure-gas isotherms under sub-ambient pressures (analytical device AUTOSORB iQ) and under high pressure conditions (analytical device iSORB-HP) with breakthrough measurements carried out with the dynaSorb BT.