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CO2 removing from biogas
Kovář, Martin ; Niesner, Jakub (referee) ; Dvořák, Radek (advisor)
Research the Selexol, Rectisol, Fluor and Purisol technologies for the treatment of biogas to natural gas quality is the main job. The purified biogas must meet quality requirements, which sets out legislation Czech Republic. An important point is to build models of technology in the ChemCad software. Methods are analyzed with these models for the same output requirements. The result is to determine whether the technologies are suitable for biogas purification and implement, through research, simplified technical and economic evaluation.
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Utilization of biogas in gas distribution system
Frühbauer, Zdeněk ; Niesner, Jakub (referee) ; Dvořák, Radek (advisor)
The thesis deals with the technologies upgrading the biogas to the quality of the natural gas for the following use in the gas distribution system. The main concern of the thesis is the pressure swing adsorption (PSA), which is nowadays one of the most exploited technologies. For a certain flow and composition of the biogas, completely new PSA technology was designed. Technological schema was created and the main technological devices (adsorbers) were drawn up together with the design documentation for this new technology. The important part of the thesis is also the model of the whole PSA technology in the ChemCAD programme and the evaluation of the operating and investment costs.
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Ekonomické hodnocení provozu bioplynové stanice a její potenciální transformace k produkci biometanu
Lukašík, Jáchym
This work deals with the principles of biogas and biomethane extraction and the methods of their subsequent energy use in legislative conditions of the Czech Republic and explains the support systems of this resource, also in the conditions of other EU member states, with a more detailed focus on the situation in Germany. Subsequently, the real agricultural biogas plant is economically evaluated from the data on operation in previous years using static indicators, from which the future management is then predicted on the basis of revealed trends, using dynamic methods. The production of the analyzed biogas plant is then transferred to the operating aid environment in Germany and compared in key years. In the next part, investment financing strategies are modeled for biomethane cleaning equipment for use in transport, as bioCNG fuel, which recommend an adequate level of operating aid prices acceptable for the analyzed biogas plant. The results of the work help to assess the further probable development of the industry and determine the production limitations of the evaluated operator, which should be taken into account in the next stages of the development of operational aid strategies in the context of the maintenance of the production of such operations.
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Waste gas combustion
Krček, Robin ; Lisá, Hana (referee) ; Baláš, Marek (advisor)
This bachelor thesis deals with the issue of using waste gases as fuel. The first part is focused on the production processes, properties and composition of selected waste gases. The following part is an overview of the methods used in the treatment and removal of pollutants from the gas. Finally, technologies that generate electrical, thermal or mechanical energy by burning waste gases are summarized.
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Biomethane production in biogas plants
Matoušek, Jakub ; Miklas, Václav (referee) ; Vondra, Marek (advisor)
This bachelor thesis deals with the production of biomethane in biogas plants. The introductory part presents the operation of the biogas plant, its inputs, components, and products. The main part of the thesis deals with the perspective of biomethane in the Czech Republic and Europe and progressive technologies for the conversion of biogas to biomethane. The basic principle, advantages and disadvantages of each upgrade method are given. Common technologies at the level of commercial readiness include high pressure water scrubbing, organic physical scrubbing, chemical scrubbing process, pressure swing adsorption and membrane separation. The mentioned methods of biogas upgrading are evaluated and compared with regard to their practical applicability in the Czech environment.
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New technologies for an efficient operation of biogas plants
Uhlířová, Marcela ; Máša, Vítězslav (referee) ; Vondra, Marek (advisor)
This bachelor thesis is focused on new technologies enhancing efficient operation of biogas plants. The introductory part describes operation of biogas plant, its products and issues. The main part of the thesis deals with description of three progressive technologies concerning biogas plants such as dry fermentation, hydrothermal pretreatment and biogas upgrading to biomethane. For each technology there is a description, advantages and disadvantages with regard to their practical applicability.
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Utilization of biogas in transport
Strnadel, Bronislav ; Kučera, Pavel (referee) ; Vopařil, Jan (advisor)
The subject of this bachelor’s thesis is the utilization of biogas as a fuel for vehicle engines. First of all, methods of production, upgrading and utilization of biogas are explained. Then the situation in the Czech Republic and in Sweden is compared. Next part of the thesis is focused on the vehicles which burn upgraded biogas or natural gas vehicles. Their construc-tion and the function of fuel system are described in detail. The dependence of shape of combustion chamber on engine performance and the issue of protection of valves and their seats are described in this chapter. In the last part, a business case study of utilization of bio-gas from a biogas station is elaborated.
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The use of fuels from renewable sources and waste
Pořízek, Vít ; Jecha, David (referee) ; Skryja, Pavel (advisor)
The subject of this thesis are both available and potentional gaseous and liquid biofuels. The thesis deals with their detailed description and comparison. The first part describes the current legislation and the basic types of biofuels. The main part focuses then on biofuels themselves, their characteristics, production, utilization, and their impact on environment. In further parts, emissions created during the cycle of production and distribution of biofuel are characterized. Last part brings comparison of biofuels from different points of view, and recommendation of the alternative ways of production of gaseous and liquid biofuels from renewable resources of energy.
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