In this study, a new dilute sulphuric acid hydrolysis method was used for hemicelluloses secession from birch wood. The furfural extraction was investigated at different process temperatures (132°C - 162°C, increasing it by 5°C) and at constant amount of catalyst 3.0%, calculated on oven-dried wood. The greatest amount of furfural 11.09%, which is 75.6% from the theoretical possible yield, was formed at temperature 147°C after 90 min from the beginning of the birch wood pentoses monosaccharides dehydration process.
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