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MixSorb S Series

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 to get 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 individually gas/vapor mixtures fully automated. 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.

ModelSS ecoS ambientSHP ecoSHP
Pressure range0.1 – 10 bar0.1 – 10 bar0.1 bar – ambient0.1 – 35 bar0.1 – 68 bar
No. of MFCs2 – 4
Required inlet pressure15 bar15 bar15 bar85 bar85 bar
No. of EvaporatorsUp to 2
Pressure controlYesYesNoYesYes
Simulation SoftwareIncl.OptionalIncl.OptionalIncl.
Gas sensorYesNoYesNoYes
TCDIncl. 13 factory calibrationsIncl. 1 factory calibrationIncl. 13 factory calibrationsIncl. 1 factory calibrationIncl. 13 factory calibrations
Sample bed temperature sensorsUp to 4
Sample loading< 0.1 cm³ – 5 cm³, customized adsorbers on requests
Temperature range heating mantleAmbient – 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

Adsorption of Mixtures: Dynamic Sorption of Gas & Vapor Mixtures

Challenges such as the adsorption of CO2 from dry and moist air, the adsorption of methane from biogas or the differentiation of the relevant physisorption behavior of adsorbents in gas and vapor mixtures are different from classical methods for texture determination. The main reason here is the fact, that a sorption of mixtures is occurring and the mixture needs to be separated accordingly in order to discover, which component is adsorbed at which magnitude.

Especially the selectivity plays a crucial role in the adsorption of mixtures, since the task requires the stronger adsorption of one component within the mixture in comparison to other residual components. In order to predict or model technical processes and extract data with practical relevance, the following investigations become more and more important:

    • dynamic adsorption and desorption from a gas flow
    • determination and evaluation of breakthrough curves
    • investigation of sorption kinetics
    • investigation of co-adsorption and displacement effects
    • determination of sorption selectivity
    • determination of sorption equilibria in gas and vapor mixtures
    • scaling of technical sorption processes
    • investigation of heat balance in dynamic adsorption processes

Breakthrough Curves: Dynamic Sorption of Gas & Vapor Mixtures

Investigation experiments of practically relevant separation processes by standard gas sorption instruments for pore size analysis are limited.

Regarding the assignment of tasks such as

    • investigation of the adsorption of CO2 from dry and wet air
    • adsorption of methane of biogas
    • differentiation of practically relevant sorption behaviour of adsorbents like gas or vapor mixtures.

BET- or pore size distribution cannot predict or model separation processes.

The dynamic flow method is applied for practical investigation such as

    • dynamic gas flow adsorption and desorption
    • determination and evaluation of breakthrough curves
    • investigation of sorption kinetics
    • investigation of co-adsorption and replacement effects
    • determination of sorption selectivities
    • determination of sorption equilibria of gas mixtures
    • transfer of technical sorption processes to lab-scale
    • investigation of thermal balance of dynamic adsorption processes

Resources & Downloads

MixSorp S Series Enquiry 

For more information or to arrange a call from one of the Crea Particle Science Team, please complete the contact form .  If your enquiry is urgent, please call us on 1300 552 725.

MixSorb S Series Enquiry








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