Chemistry

Experiment 1d: adsorption of carbon dioxide at 8000 hPa


Exercise in experiment 1d

In the following experimentthe adsorption of carbon dioxide from a carbon dioxide / nitrogen mixture at a system pressure of 8.0 x 105 Pabe performed.

Test data are to be recorded for at least two temperatures in order to determine the dependence of the adsorption behavior on the system temperature.

Based on the recorded data, the breakthrough curve is to be constructed and the values ​​for the:

  • Breakthrough loading
  • Saturation loading
  • Length of the adsorption zone

be calculated.

Furthermore, the temperature profile and the mass balance (comparison of the gas flows at the system inlet and outlet) must be interpreted during the adsorption process. Finally, the results are to be discussed.

Variable test parameters

The following parameter settings are suggested:

  • Volume flow nitrogen: 300 ml / min
  • Volume flowCarbon dioxide: 100 ml / min

this results in a total volume flow of 400 ml / min with a composition of 75% by volume of nitrogen and 25% by volume of carbon dioxide.

  • Reactor temperature for experiment 1: 30 ° C (303.2 K)
  • Reactor temperature for experiment 2: 80 ° C (353.2 K)

Plant-specific parameters

  • Mass of the adsorbent: 32 g
  • Bed height of the adsorbent: 17 cm
  • Dead volume of the system: 110 cm3
  • System pressure of the system:8000 hPa(the exact value can be taken from the flow diagram)

Suggested time to reserve the test facility:60 minutes


Video: CEB 2072 Experiment 9: Activated Carbon Adsorption Task A (January 2022).