The fast pyrolysis analyzer (CDS 5250) was coupled with GC/MS(Agilent Technologies 7890A/5975C) to investigate the distributionof volatiles from lignin fast pyrolysis against reaction temperature.About 0.5 mg of lignin sample was loaded in the pyrolysis tube, and
the pyrolysis temperature of furnace was set to be 550, 650 and 800 C with the flash heating rate of 20,000 C/s. The residencetime for the sample was 30 s, to ensure that most of the solidsample was pyrolyzed. The evolved volatiles were identified by GC/MS, with the conditions given as : the injector temperature waskept at 300 C; the chromatographic separation was performed with a TR-35MS capillary column; the oven temperature was programmed from 40 C (3 min) to 200 C (1 min) with a 4 C/min heating rate and then to 280 C (1 min) with a 20 C/min heatingrate; the mass spectra were operated in electron ionization (EI)mode at 70 eV. The mass spectra were obtained from m/z 50 to 650.The yield of the compounds can be determined by the characterized GC/MS spectrums, according to the database of NIST libraryand other previous reports