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This course is focused on a thermochemical conversion of biomass and biomass based materials and on an energetic and material utilization of its gaseous, solid and liquid products. Part of the course is thorough overview of all physicochemical properties of a biomass (elemental composition, volatile matter content, ash content and ash properties) and their impact on properties of a biomass and possibilities of its thermochemical conversion for production of heat, electricity, second generation biofuels and other chemical substances.
The course is also focused on an analysis of existing restrictions on biomass usage, for energy and material purposes, connected with an availability of suitable sources (type, density per area and availability, market price) and overcoming current technological problems associated with processes of thermochemical conversion of biomass.
In the course both classical (combustion, solid and fluid bed gasification, slow medium and low temperature pyrolysis) as well as new thermochemical processes (torrefaction, flash pyrolysis, multistage gasification, biochar production, supercritical water gasification) are presented. Part of the course is also an overview of all processes suitable for the production of second-generation biofuels from gaseous and liquid products of a thermochemical conversion. Strong emphasis is placed on the overall efficiency of production of electricity and other products, and on possible measures to increase it. Emphasis is also placed on the analysis of pitfalls associated with a construction and operation of a pilot or an industrial facility. Part of the course deals with an evaluation of different thermochemical processes, used for production of electricity and other useful products, in terms of efficiency and overall environmental impact.
The course also presents an overview of pilot and commercial technologies for thermochemical conversion of biomass, used for energetic and material utilization of a biomass, located in the Czech Republic, the European Union and worldwide.
Optional part of the course is a laboratory exercise, aimed to determine basic physicochemical properties of a biomass and an excursion to a selected demonstration unit in the Czech Republic producing electricity and biochar from biomass.
Poslední úprava: Hlinčík Tomáš (03.04.2018)
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Studenti budou umět: samostatně se orientovat v problematice výroby energie z biomasy, stanovit a zhodnotit základní fyzikálně-chemické vlastnosti různých typů biomasy, a tak určit jejich chování za podmínek termochemické konverze, orientovat se v různých typech termochemických procesů transformace energie (spalování, rychlá a pomalá pyrolýza, zplyňování) a mít přehled o zařízeních vhodných pro výrobu elektrické energie (turbíny, motory, palivové články), zhodnotit možnosti použití různých druhů biomasy pro výrobu energie, zvolit nejlépe vyhovující termochemický proces a zařízení pro výrobu elektrické energie a zhodnotit celkovou účinnost systému, orientovat se v legislativních a ekonomických aspektech využití biomasy pro energetické účely. Poslední úprava: Hlinčík Tomáš (03.04.2018)
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Fakultativní účast na přednáškách, případné konzultace s přednášejícími, aspoň 50 %. Vypracovaní písemné rešerši na předem dohodnuté téma z okruhu předmětu. Úspěšné absolvování ústní části zkoušky. Poslední úprava: Hlinčík Tomáš (31.05.2017)
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1. Boyle, G.: Renewable Energy. Power for a Sustainable Future. Oxford University Press, 2nd Edition, United Kingdom (2004); ISBN 0-19-926178-4. 2. Reed, T. B.: Encyclopedia of Biomass Thermal Conversion. The Principles and Technology of Pyrolysis, Gasification & Combustion. The Biomass Energy Foundation, USA (2002); ISBN 1-60322-055-0. 3. Loo, van S., Koppejan, J.: The Handbook of Biomass Combustion & Co-firing. Earthscan, United Kingdom (2008); ISBN 978-1-84407-249-1. 4. Brown, R. C.: Thermochemical Processing of Biomass. Conversion into Fuels, Chemicals and Power. Wiley, United Kingdom (2011); ISBN 978-0-470-72111-7. 5. Higman, C., Burgt, van der M.: Gasification. Elsevier, USA (2008); ISBN 978-0-7506-8528-3. 6. Knoef, H.: Handbook Biomass Gasification. BTG, Netherlands (2005); ISBN 90-810068-1-9. 7. Skoblia S., Tenkrát D., Vosecký M., Pohořelý M., Lisý M., Balaš M., Prokeš O.: Využití biomasy jako obnovitelného zdroje energie. Chem. Listy100(S), s20-s24, (2006). 8. Pohořelý M., Jeremiáš M., Kameníková P., Skoblia S., Svoboda K., Punčochář M.: Zplyňování biomasy. Chem. Listy 106 (4), 264-274 (2012). 9. Zámostný P., Kurc L.: Vliv podmínek a složení suroviny na pyrolýzu dřevní hmoty. Chem. Listy 105(6), 458-466 (2011). 10. Basu P.: Biomass gasification and pyrolysis: practical design and theory, Elsevier Inc., 2010 ISBN 978-0-12-374988-8. Poslední úprava: Hlinčík Tomáš (03.04.2018)
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1. The oldest energy resource and its present renaissance. Biomass resources potential, availability and possibilities of its utilization. 2. Physicochemical properties of biomass and effect on a thermochemical conversion and production of energy. 3. Biomass properties (moisture, bulk density, energy density) and basic pre-treatment necessary for an efficient utilization (drying, pelletizing, briquetting, torrefaction). 4. Thermochemical conversion: definitions, typical conditions, means of realization and possibilities of utilization for efficient production of energy and other products. 5. Technological processes for production of electricity from biomass and products of its thermochemical conversion. Effects of thermochemical conversion on overall process efficiency. 6. Thermochemical conversion of biomass without air access (pyrolysis). Effect of a process conditions (temperature, heating rate and pressure) on products distribution and composition. Application of a pyrolysis process for production of gaseous, solid and liquid products and their usage for energy production. 7. Thermochemical conversion of a biomass in an oxidizing atmosphere with excess air ratio (combustion). Overview of suitable combustion devices, operating conditions and requirements on fuel properties. 8. Thermochemical conversion of biomass in the partial oxidation conditions (gasification) and possibilities of usage for energy production. 9. Thermochemical conversion of biomass in supercritical water (hydrothermal gasification) and its usage for production of energy, hydrogen and methane. 10. Cleaning and processing products of thermochemical conversion of biomass for their further efficient energy usage. 11. Production of biochar, its classification and potential for usage in energy production, improvement of soil properties and widespread sequestration of CO2. 12. Possibilities of a production of liquid and gaseous second-generation fuels and chemical commodities from products of a thermochemical conversion of biomass. 13. Combined heat and power production from biomass-based fuels by means of a thermochemical conversion. 14. Pilot plants and commercial plants for gasification and pyrolysis in the world and in the Czech Republic.
Poslední úprava: Hlinčík Tomáš (03.04.2018)
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přednášky uvedené na stránkách předmětu odborná a speciální literatura Poslední úprava: Skoblia Siarhei (17.03.2014)
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Nejsou Poslední úprava: Skoblia Siarhei (17.03.2014)
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Nejsou Poslední úprava: Skoblia Siarhei (17.03.2014)
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Hodnocení studenta | |
Forma | Váha |
Obhajoba individuálního projektu | 50 |
Ústní zkouška | 50 |