mixSorb S series


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mixSorb S series – breakthrough curve analyzer

The mixSorb S series provides unique capabilities to investigate novel materials, like MOFs, COFs etc. by mixed gas adsorption. Novel materials are in the 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 the mixSorb L series, the mixSorb S series is designed for very small sample amounts (powders). Especially R&D groups have now the possibility to measure newly 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 allow getting data, next to the effective adsorption 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 the available vapor option it is possible to work up to 2 completely independent evaporators to form fully automated and individually gas/vapor mixtures. These data allow a profound look at the 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.

An overview of the models of the mixSorb S series can be found below:



S ecoS ambientSHP eco


Pressure range

0.1 – 8 bar

0.1 – 8 bar0.1 bar – ambient0.1 – 35 bar

0.1 – 68 bar

No. of MFCs

2 – 4

Required inlet pressure

10 bar

10 bar10 bar85 bar

85 bar

No. of Evaporators

Up to 2

Pressure control




Simulation Software




Gas sensor





Incl. 13 factory calibrations

Incl. 1 factory calibrationIncl. 13 factory calibrationsIncl. 1 factory calibration

Incl. 13 factory calibrations

Sample bed temperature sensors

Up to 4

Sample loading

< 0.1 cm³ – 5 cm³, customized adsorbers on requests

Temperature range heating mantle

Ambient – 400 °C

Temperature range circulator bath

-20 °C – 90 °C


  • 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)

/1/ Particle World 20; p. 26-27; “The new mixSorb S series: A perfect tool to investigate mixed gas/mixed vapor adsorption on a laboratory scale”
/2/ SO2-Tolerant NOx Reduction by Marvelously Suppressing SO2 Adsorption over FeδCe1−δVO4 Catalysts, Environ. Sci. Technol. 2020, https://pubs.acs.org/doi/pdf/10.1021/acs.est.0c05038
/3/ Diammonium-Pillared MOPS with Dynamic CO2 Selectivity, Cell Reports Physical Science 2020, Volume 1, Issue 10, https://doi.org/10.1016/j.xcrp.2020.100210


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

add option

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

add option

  • 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)

add option

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

add option

Other sorption analyzers for gas/vapor-mixtures

mixSorb L seriesComplex dynamic sorption processes for industrial adsorber material (up to 100 ml; up to 68 bar)

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