Urgency, aim, objectives and fundamental statements of the promotion work are justified in the Introduction. There is a literature overview of potential of obtaining bioethanol from lignocellulose containing biomass (wood, straw, and husk) and review of biomass pre-treatment processes in the First Chapter. Literature about furfural, acetic acid and bioethanol obtainment and utilization is summarized and analyzed. Historical development of bioethanol obtainment from wood, consumption and raw materials are covered. In the Second Chapter experimental part is covered. Choice of raw material, methodology to determine chemical composition of raw material and lignocellulose (Figure 3), pilot equipment and their work methods are justified. I have chosen birch wood, which covers 30% of all forests and is a good cellulose and hemicellulose source, for the experimental part. In this promotion work flowchart shown in Figure Nr.4 is used for the development of new technology. The results and their assessment are in the Third Chapter. Chemical composition of birch wood, pre-treatment investigations about pentose deacetylation to obtain acetic acid, and pentose hydrolysis and pentose dehydration to obtain furfural at the temperature of 137°C, 147°C, 157°C and 167°C with sulphuric acid concentration 3%, 6% and 9% and duration 10-120 min is determined, as well as glucose solution obtainment by using acid and enzymatic hydrolysis. Also, bioethanol obtainment is discussed in the third chapter and the possible profit is calculated if results reached in the promotion work would be industrially implemented. In the Conclusion the achieved results of this work are formulated and the most relevant conclusions are defined. In the References all the literature sources used in this work are listed.