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Application of Amine-Functionalized Cellulose Foam for CO2 Capture and Storage in the Brewing Industry

Lars Helmlinger1, Yejun Zhu1, Julia Gensel1, Thomas Neumeyer1, Stefan Thäter2, Franziska Strube2, Christoph Bauer2, Bernd Rosemann2, Volker Altstädt1*

Neue Materialien Bayreuth GmbH, Gottlieb-Keim-Straße 60, 95448 Bayreuth, Germany
Chair for Environmentally Friendly Production Technology, Universitätsstraße 30, 95447 Bayreuth, Germany

*Corresponding author: email

Journal of Renewable Materials 2018, 6(3), 219-225.


Due to a lack of technology, smaller breweries simply dump excess CO2 into the atmosphere, fueling the greenhouse effect and global warming. State-of-the-art CO2 capture technologies using nanofibrillated cellulose are expensive and require laborious freeze-drying. Consequently, there is a high demand for affordable alternatives in order to reduce the environmental impact in this industry sector. This work describes a novel route for a quick and cost-efficient synthesis of amine-functionalized cellulose pellets by a surfactant-assisted steam explosion process. Typical values with this method were porosity of 92% and density of 67 g/cm³. Investigations on polyethylenimine (PEI) content and distribution revealed a maximum PEI concentration of 20 wt% with decreasing concentration to the core of a pellet. Sufficient stability against brewery exhaust gas was determined and CO2 release at ~ 120 °C could be confirmed. Capacity tests under simulated working conditions with a novel laboratory reactor yielded a CO2 capacity of 1.0 mmol/g or 67 mol/m³, which is comparable to values known from the literature for other cellulose-based adsorbents.


Cite This Article

Helmlinger, L., Zhu, Y., Gensel, J., Neumeyer, T., Thäter, S. et al. (2018). Application of Amine-Functionalized Cellulose Foam for CO2 Capture and Storage in the Brewing Industry. Journal of Renewable Materials, 6(3), 219–225.

cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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