. . . . . . . "The solid product retains a high percentage of the energy content of the biomass feedstock, condensable gases such as water vapor, acetic acid and other oxygenates and non-condensable gases mainly carbon dioxide, carbon monoxide and small amounts of hydrogen and methane but also furfural, formic acid, methanol, lactic acid, phenol and others All useful things when a catalytic converter is used to" .