mixSorb S


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mixSorb S

The mixSorb S provides unique capabilities to investigate novel materials, like MOFs COFs etc. by mixed gas adsorption. Novel materials are in focus of research in recent last years. These materials can have very high selectivities due to their extraordinary surface chemistry and have to be investigated by mixed gas sorption for a deeper understanding of their sorption behavior.

In contrast to mixSorb L the mixSorb S is ideally designed for very small sample amounts (powders). Especially R&D groups have now the possibility to measure new synthesized materials by complex dynamic sorption processes in a wide field of different gas- and gas/vapor-mixtures by using different parameters like: pressure, temperature gas velocity/dwell times, cycle tests and much more. These experiments allows to get data, next to the effective adsoprtion performance, of kinetics, co-adsorption phenomenon or displacement effects, sorption selectivities, data of gas mixture adsorption and heat balance of the sorption process.

By using of the available vapor option it is possible to work up to 2 completely independent evaporators to form fully automated individually gas/vapor mixtures fully automated. These data allows a profoundly look to co-adsorption phenomenon or displacement effects.

The related modeling software 3P sim made it possible to calculate and to modify pure gas isotherms as well as breakthrough curves  and to calculate the behavior of gas/vapor-mixture equilibria.

The mixSorb SHP (high pressure) was designed as a special device series especially for applications in the natural gas sector as well as gas storage studies on new materials under high system pressures (up to 68 bar).


  • Determination of breakthrough curves
  • Investigation of co-adsorption and displacement
  • Determination of sorption selectivity
  • Estimation of applicability of synthesized materials in technical processes
  • Dynamic adsorption and desorption experiments
  • Determination of single- and multi-component adsorption data
  • Investigation of kinetic performance of novel materials
  • In-situ sample preparation up to 400 °C
  • Fully automated control via PC by using mixSorb Manager
  • Automated regulation of the adsorber pressure up to 8 bar
  • Up to 4 high precision mass flow controllers
  • Automated built-in gas and gas/vapor mixing
  • Measurement of inlet and outlet gas composition
  • Tempering of sample cell by thermostat automatically
  • Monitoring of pressure drop along the sample cell
  • Built-in Thermo Conductivity Detector (TCD); optional gas analysis via interfaced Mass Spectrometer
  • Safety guard sensor for flammable gases for automatic shut down
  • Enhanced Safety by intelligent illuminated workspace

Literatur und Normen

dynamicsorption.com – detailed description of features, advantages, scientific background and examples of dynamic sorption methods (flow-method)


  • individual design of sample cell for different sample geometry
  • design of special membrane cells

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  • to supply gas-/vapor mixtures
  • precise vapor dosing by fully automated and tempered saturator
  • built in up to 2 completely independent saturators

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  • Allows connection of a vacuum pump for sample pre-treatment or measurment at lower pressures or for evacuation of the sample cell < 1 bar (membrane- or scroll-vacuum pump)

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  • for investigation of ternary or quaternary gas mixtures
  • different Mass Spectrometer are available

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Other sorption analyzers for gas/vapor-mixtures

mixSorb L Complex dynamic sorption processes for industrial adsorbens material (up to 100 ml; up to 10 bar)
mixSorb SHP Complex dynamic sorption processes for adsorbens material of R&D (> 100 mg; up to 68 bar)


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