Investigations on the Effect of Metal Ions on the Products Obtained From the Pyrolysis of Cellulose

Christian W. Klampfl1*, Gerold Breuer1, Clemens Schwarzinger2 and Berndt Köll3

1 Institute of Analytical Chemistry, Johannes Kepler-University, Altenbergerstr. 69, A-4040 Linz, Austria.
2 Institute for Chemical Technology of Organic Materials, Johannes Kepler-University, Altenbergerstr. 69, A-4040 Linz, Austria.
3 WFT Research-Tann Papier, Fabrikstr. 20, A-4050 Traun, Austria.


Investigations on the influence of different metal ions, employed in the form of their chlorides, on the pyrolyzate of microcrystalline cellulose and pulp were performed. Cellulose/metal ion mixtures were pyrolyzed and the volatile reaction products enriched on a cartridge filled with Tenax, followed by GC-MS analysis after thermodesorption of the trapped pyrolysis products. Different metal ions, namely Na+, Ca2+, Mg2+ and Fe3+ were tested at levels ranging from 0.18 - 2.2 mM g-1. Evaluation of the GC-MS pyrograms revealed that the distribution of the selected 37 pyrolysis products was significantly influenced by both, the type and the concentration of the metal ion added.

Keywords: Pyrolysis, Thermodesorption, Cellulose, Metal Ions