The processes of catalytic hydrolysis of hemicelluloses of pine wood at temperatures of 100-150 ° C were studied. The dissolved mineral acids H₂SO₄ and HCl, as well as the solid acid catalysts Amberlyst-15, acid-modified SBA-15 and Sibunit-4 were used as the hydrolysis catalysts.

It was established that the maximum yield of monosaccharides (96,0% wt. from the initial content of hemicelluloses in pine wood) is achieved at temperature of 100 ° C in the presence of catalyst 2 % wt. HCl with a hydrolysis time of 4 h. The yield is reduced in the series of catalysts: HCl (100 °C) > SBA–15 (150 °C) > Amberlyst–15 (150 °C) > H₂SO₄ (100 °C)> Sibunit–4 (150 °C) > without catalyst (150 °C).

The lignocellulosic products formed during the hydrolysis of pine wood contain 51.0 - 55.5% wt. of cellulose, 29.2 - 36.7% wt. of lignin and 1.8 to 11.7% wt. of hemicelluloses.

The composition and structure of soluble and solid products of acid hydrolysis of pine wood are studied by gas chromatography, X-ray diffraction and chemical methods.