The solid products were determined by direct weighing of the
solid biomass residue inside the reactor. The volume of the produced
gas products was measured by water displacement and the
gas products were analyzed off-line in a HP 5890 Series II gas
chromatograph, equipped with four columns (precolumn: OV-101,
columns: Porapak N, Molecular Sieve 5A and Rt-Qplot
30 m 0.53 mm ID) and two detectors (TCD and FID).