CO2 removal from biogas with Supported Amine Sorbents

May, 10, 2017

Recently Peter Hauwert (R&D Engineer at Frames), co-authored a technical article in Separation and Purification Technology, about using supported amine sorbents for CO2 removal from biogas.

Renewable biogas is an energy source that is receiving increasing interest. Biogas is formed via anaerobic fermentation of manure and organic residue streams in a digester. The raw biogas contains significant amounts of sour components such as CO2 and H2S. Before biogas can be utilized or injected in local gas grids, these contaminants must be removed from the gas stream to prevent corrosion and to increase the heating value of the gas.

In order to remove these components, Frames has been working  on the application of supported amine sorbents, together with our partners from the University of Twente, ECN (Energy Research Centre of the Netherlands), Shell Global Solutions and ISPT (Institute for Sustainable Process Technology).

The article highlights the equilibrium capacity data and adsorption isotherms for two supported amine sorbents (SAS). Using these isotherms a process design study for CO2 removal from biogas using supported amine sorbents. Finally the article compares key parameters for a SAS based process vs. liquid amine scrubbing, showing that for supported amine sorbents can lead to significant energy savings in biogas processing.

You can read the complete article here.

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