Pyrolysis Organosolv lignin

Dominguez, J. C., Oliet, M., Alonso, M. V., Gilarranz, M. A., and Rodriguez, F. (2008). Thermal stability and pyrolysis kinetics of organosolv lignins obtained from Eucalyptus globulus. Ind. Crops Prod., 11,150-156. 

Table 9.1.5. Pyrolysis products at 51(f C of several lignins [6a], The analyzed materials were milled wood lignin (MLW), steam exploded lignin (StE.), a lignin purified by organosolv procedure (Org ), kraft lignin (Kraft), and bagasse lignin (Bag.).

Techniques such as Py-MS or Py-GC/MS are not always suitable for the identification of less volatile or highly polar compounds. HPLC analysis with MS detection provides a better tool in such cases, and it was successfully applied for lignin pyrolysate analysis (see Section 5.7). Pyrolysis products from a lignin sample from mixed hardwood, obtained using the organosolv procedure with ethanol/water and generated at 510° C in an on-line Curie point pyrolyser and analyzed by HPLC [8], indicated the presence of a series of compounds shown in Table 9.1.7. 

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