• А.A. Dolinskyi Institute of Engineering Thermophysics of the National Academy of Sciences of Ukraine, 2a, Zhelyabova str., Kyiv, 03680,Ukraine
  • O. M. Obodovych Institute of Engineering Thermophysics of the National Academy of Sciences of Ukraine, 2a, Zhelyabova str., Kyiv, 03680,Ukraine
  • V.V. Sydorenko Institute of Engineering Thermophysics of the National Academy of Sciences of Ukraine, 2a, Zhelyabova str., Kyiv, 03680,Ukraine
Keywords: bioethanol, lignocellulosic biomass, pre-treatment.


The paper presents an overview of bioetanol production technologies. It is noted that world fuel ethanol production in 2017 amounted to more than 27,000 million gallons (80 million tons). Eight countries, namely the USA, Brazil, the EU, China, Canada, Thailand, Argentina, India, together produce about 98% of bioethanol. In Ukraine, the volume of bioethanol production by alcoholic factories in recent years has been gradually increasing and amounted to 2,992.8 ths. dal in 2017. The production of ethanol as an additive to gasoline, with regard to the raw materials used, as well as the corresponding technologies, is historically divided into three generations. The first generation of biofuels produced from food crops rich in sugar or starch is currently dominant.

Production of advanced biofuels from non-food crop feedstocks is limited. Output is anticipated to remain modest in the short term, as progress is needed to improve technology readiness. The main stages of bioethanol production from lignocellulosic raw materials are pre-treatment, enzymatic hydrolysis and fermentation. The pre-treatment process aims to reduce of sizes of raw material particles, provision of the components exposure (hemicellulose, cellulose, starch), provision of better access for the enzymes (in fermentative hydrolysis) to the surface of raw materials, and reduction of crystallinity degree of the cellulose matrix. The pre-treatment process is a major cost component of the overall process. The pre-treatment process is highly recommended as it gives subsequent or direct yield of the fermentable sugars, prevents premature degradation of the yielded sugars, prevents inhibitors formation prior hydrolysis and fermentation, lowers the processing cost, and lowers the demand of conventional energy in general. From the perspective of efficiency, promising methods of pre-treatment of lignocellulosic raw materials to hydrolysis are combined methods combining mechanical, chemical and physical mechanisms of influence on raw materials. One method that combines several physical effects on a treated substance is the discrete-pulsed energy input (DPIE) method. The DPIE method can be applied in the pre- treatment of lignocellulosic raw material in the technology bioethanol production for intensifying the process and reducing energy consumption. Ref. 15, Fig. 2.


1. World Fuel Ethanol Production. Renewable Fuels Association. Retrieved from
2. Technology Roadmap - Biofuels for Transport. International Energy Agency. Retrieved from
3. Biofuels for transport. Tracking Clean Energy Progress. International Energy Agency. Retrieved from
4. Order of the Cabinet of Ministers of Ukraine “On the National Renewable Energy Action Plan for the period up to 2020”. (01.10.2014). Retrieved from
5. B. Blium Ya. B., Levchuk O.M., Rakhmetov D.B., Rakhmetov S.D.[ Biological resources for production of different biofuel types. Scientific conference “Biological resources and the newest biotechnological advancements in biofuel production”], Visnyk Natsionalnoi akademii nauk Ukrainy [Bulletin of the National Academy of Sciences of Ukraine], 2014. № 11. P. 64-72. (in Ukr.)
6. Advanced R&D and Technologies of the NAS of Ukaine (2017). The National Academy of Sciences of Ukraine. Retrieved from
7. V.I. Sushkova, L.V. Ustyuzhaninova, O.V. Berezina, S.V. Yarotskiy [Methods of preparing plant paw material for bioconversion in feed products and ethanol], Khimiia rastitel'nogo syr'ia [Chemistry of plant raw material], 2016. №1.P.93-119. (in Rus.)
8. Mustafa Vohra, Jagdish Manwar, Rahul Manmode, Satish Padgilwar, Sanjay Patil [Bioethanol production: Feedstock and current technologies], Journal of Environmental Chemical Engineering. 2014. № 2. P. 573-584.
9. R.E.H. Sims, W. Mabee, J.N. Saddler, M. Taylor [An overview of second generation biofuel technologies], Bioresource Technology. 2010. № 101. P.1570–1580.
10. H.B. Aditiya, T.M.I.Mahlia, W.T.Chong, HadiNur, A.H.Sebayang [Second generation bioethanol production: A critical review], Renewable and Sustainable Energy Reviews. 2016. № 66. P. 631–653.
11. Zhukov N.A.(2004) [ Theoretical bases and technological principles of continuous conversion of plant raw materials], Extended abstract of Doctor’s thesis: Kirov (in Rus.).
12. J.Y. Zhu, X.J. Pan [Woody biomass pretreatment for cellulosic ethanol production:technology and energy consumption evaluation], Bioresource Technology, 2010. № 101. P. 4992–5002.
13. Obodovich A.N., Grabova T.D., A.R. Koba A.R., Goryachev O.A. [Perfection of the technology of preparation of wort from starch-containing raw material in alcohol production with the use of the method of discrete-impulsive input of energy], Promyshlennaya teplotekhnika [Industrial Heat Engineering], 2007.V. 29. №4. P. 77–85. (in Rus.)
14. Lyimar A.Yu.(2014) [ Features of discrete pulse energy input when dispersing starch-containing raw materials], Candidate’s thesis: Kyiv (in Rus.).
15. Drahanov B.Kh., Obodovych O.M., Horobets V.H., Shelimanova O.V. [ Intensification of the technology of preparation of liquid feed for farm animals using rotor-pulsating apparatus (RPA)],Naukovyi visnyk Natsionalnoho universytetu bioresursiv i pryrodokorystuvannia Ukrainy [Scientific bulletin of the National University of Life and Environmental Sciences of Ukraine], 2010. № 153. P.1-6. (in Ukr.)

Abstract views: 215
PDF Downloads: 293
How to Cite
DolinskyiА., Obodovych, O. M., & Sydorenko, V. (2018). WORLD AND DOMESTIC EXPERIENCE OF BIOETHANOL PRODUCTION. Thermophysics and Thermal Power Engineering, 40(4), 50-57.
Fuel Utilization and Burning, Heat Power Units, Ecology