mixSorb L series


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mixSorb L (formerly dynaSorb BT) – breakthrough curve analysis

The mixSorb L series provides unique capabilities to investigate arbitrarily complex dynamic sorption processes in a uniquely safe and easy-to-use bench-top instrument. Technical adsorbents such as zeolites, active carbons, silica gels, etc. can be investigated under authentic process conditions at a broad temperature (-20 °C to 400 °C) and pressure (up to 85 bar) range, with adjustable gas flow rates up to 40 L/min and well-defined gas compositions.

The mixSorb S series provides unique capabilities to investigate novel materials, like MOFs COFs etc. by mixed gas adsorption, especially for R&D.

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




L ecoL ambient


Pressure range

0.1 – 10 bar

0.1 – 10 bar0.1 bar – ambient

0.1 – 68 bar

No. of MFCs

2 – 4

Required inlet pressure




No. of Evaporators

Up to 2

Pressure control




Simulation Software




Gas sensor




Counterflow possible





Incl. 13 factory calibrations

Incl. 1 factory calibrationIncl. 13 factory calibrations

Incl. 13 factory calibrations

Sample bed temperature sensors

Up to 4

Sample loading

4 – 130 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 kinetic performance of adsorbents
  • Investigation of co-adsorption and displacement
  • Determination of sorption selectivity
  • Reasonable downscaling of technical separation
  • Dynamic adsorption and desorption experiments
  • Determination of single- and multi-component adsorption data
  • In-situ sample preparation up to 400 °C
  • Fully automated control via PC
  • Automated regulation of the adsorber pressure up to 10 bar
  • Up to 4 high precision mass flow controllers
  • Automated built-in gas mixing
  • Measurement of inlet and outlet gas composition
  • Pre-tempering of inlet gas and tempering of adsorber
  • Monitoring of inlet gas temperature
  • Determination of heat profiles in the adsorber with four temperature sensors
  • Monitoring of pressure drop along the adsorber
  • 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)

  • Webinar mixed gas/vapor adsorption: Working with Vapors and Low Concentrations in Breakthrough Experiments (Video on Demand)
  • PARTICLE WORLD 19; p. 20 – 25, “From the idea to the technology behind the separation process:
    mixSorb L is gearing up!”
  • Dynamic and equilibrium-based investigations of CO2-removalfrom CH4-rich gas mixtures on microporous adsorbents; A. Möller, R. Eschrich, C. Reichenbach, J. Guderian, M. Lange, J. Möllmer: Adsorption (2017) 23: 197-209; external Link to pdf-view
  • conference poster 2017 – Deutsche Zeolithtagung, “Porous solids for heat storage applications: In-depth material testing by vapor breakthrough measurements”, pdf-Download
  • conference poster 2016 – Fundamentals of Adsorption – “Dynamic and equilibrium-based investigations of CO2 removal from CH4-rich gas mixtures on zeolites”, pdf-Download
  • conference poster 2016 – Reaktionstechniktagung – “Dynamische Untersuchungen zur Adsorption an Aktivkohlen”, pdf-Download
  • conference poster 2016 – Fachgruppe Adsorption und Gasreinigung – “dynaSim – A Modeling and Evaluation Tool for Dynamic Sorption Data” pdf-Download
  • conference poster 2015 – Carbon – “Breakthrough Curves of CO2 and CH4 on Carbon Molecular Sieves”, pdf-Download
  • Particle World 21; p. 25 – 28; “Studies on adsorptive CO₂ removal from nitrogen in variable humidity”
  • “Robust Ultramicroporous Metal–Organic Frameworks with Benchmark Affinity for Acetylene”, Peng et al., Angew. Chemie Int. Ed., Vol. 57, Issue 34 (2018), p. 10971-10975, https://doi.org/10.1002/anie.201806732


  • (d = 1 cm, h = 6 cm) with temperature probe
  • 1 temperature sensor

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  • to supply gas-/vapor mixtures
  • possibility to transport liquid mixtures in the evaporator

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

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  • Temperature swing option for fast temperature switch (0°C – 140°C)
  • contains 2 thermostats and double walled adsorber column

request option

  • 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 S seriesComplex dynamic sorption processes for adsorbent materials in R&D (> 100 mg; up to 68 bar)


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