Fast pyrolysis experiments were carried out at different temperatures
(350 C, 400 C, 450 C and 500 C) for 20 s with the heating
rate of 20 C/ms. The pyrolysis vapors were directly transformed
into GC/MS for analysis. The chromatographic separation was
achieved by using an Elite-35MS capillary column (30 m 0.25 mm
i.d., 0.25 lm film thickness).