Title
Co-pyrolysis of various lignins with polycarbonate
Authors
MIHAI BREBU and MANUELA NISTOR

Received January 21, 2013
Published Volume 48 Issue 1-2 January-February
Keywords co-pyrolysis, Klason, Organosolv, Lignoboost, polycarbonate

Abstract
The co-pyrolysis of bisphenol A polycarbonate with lignins of various origin and obtaining procedures (Klason annual plants, Organosolv hardwood and Lignoboost softwood lignin) were comparatively studied with a focus on product yield and oil composition. Similarities and differences among studied lignins were observed and discussed. Lignoboost lignin gave the highest oil yield and the lowest amount of residue. Organosolv hardwood yielded significant amounts of syringol, methylsyringol and isovanillic acid, while Lignoboost lignin yielded more guaiacol and its methyl- and ethyl- derivatives. Residual acetic acid and sulphur compounds from the obtaining procedures were found for Organosolv hardwood and Lignoboost lignin.