Modifying the composition of wood during hydrothermal treatment

Wood is a product of plant origin having complex element and component composition. Under the influence of temperature in the presence of moisture lignocarbohydrate complex decomposes and extraction of water soluble substances takes place. Aqueous distillate contains a large number of different chemicals, the most dangerous of which are furfural and formaldehyde. The intensity of the process of extraction in the wood depends on the temperature. The formation of these substances is observed even at low temperatures around 60-70 º C and long duration of exposure, which is characteristic of conditions during chamber wood drying.