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Fluid boiler CFB for wood biomass combustion, setam paramters 150 t/h; 9,3 MPa; 530 °C
Martinek, Jan ; Moskalík, Jiří (referee) ; Baláš, Marek (advisor)
This diploma thesis deals with the control calculation of fluid biomass boilers with circulating fluidized bed. The introduction briefly introduced fluidized bed boilers and explained what biomass is. Furthermore there is a stoichiometric calculation of combustion. The calculation of the losses and the efficiency of the boiler is following. Desulphurization is calculated briefly. The main part is devoted to the design and calculation of individual heat exchanging surfaces: superheater P1, superheaters 2 and 3, the wall superheater, the return chamber, hanging tubes, economizer and air heater. At the end is calculated total tolerance boiler. Work is completed with a diagram of temperature of working media and combustion.
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Purification of flue-gas desulfurization
Křesťan, Jan ; Špiláček, Michal (referee) ; Hrnčířová, Michaela (advisor)
The aim of this thesis is theoretical elaboration of flue-gas desulfurization and emission limits of sulphur dioxide. Thesis is divided into three parts. First part is about content of sulphur in fuel, formation of sulphur oxides and their influence on human health and environment. Second part is dedicated to sources of sulphur dioxide, present emission situation in the Czech Republic and emission limits of sulphur dioxide. The third part describes methods how to reduce emissions of sulphur dioxide, especially methods of flue-gas desulfurization. The thesis is based on technical texts, Czech laws about air pollution and data from the Czech hydrometeorological institute.
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Reducing emissions of SO2 in the flue gas from the fluidized bed boiler
Tesař, Jan ; Jecha, David (referee) ; Brummer, Vladimír (advisor)
Aim of this thesis is to design a technology of a flue gas desulphurization of fluidized bed boiler. Currently, the state of technology is not able to provide flue gas desulphurisation to required level. For this reason it is necessary to build additional device for the desulphurisation. Theoretical part of the thesis deals with the emission limits of sulphur dioxide, available methods of desulphurization and sorbents suitable for the desulfurization. In practical part conditioned dry sorption method is chosen for the specified source, technological and structural design for suggested desulphurization technology including design of all device is proposed. The thesis also includes a technology design and a 3D model.
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Reducing emissions of SO2 in the flue gas from the fluidized bed boiler
Tesař, Jan ; Jecha, David (referee) ; Brummer, Vladimír (advisor)
Aim of this thesis is to design a technology of a flue gas desulphurization of fluidized bed boiler. Currently, the state of technology is not able to provide flue gas desulphurisation to required level. For this reason it is necessary to build additional device for the desulphurisation. Theoretical part of the thesis deals with the emission limits of sulphur dioxide, available methods of desulphurization and sorbents suitable for the desulfurization. In practical part conditioned dry sorption method is chosen for the specified source, technological and structural design for suggested desulphurization technology including design of all device is proposed. The thesis also includes a technology design and a 3D model.
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Fluid boiler CFB for wood biomass combustion, setam paramters 150 t/h; 9,3 MPa; 530 °C
Martinek, Jan ; Moskalík, Jiří (referee) ; Baláš, Marek (advisor)
This diploma thesis deals with the control calculation of fluid biomass boilers with circulating fluidized bed. The introduction briefly introduced fluidized bed boilers and explained what biomass is. Furthermore there is a stoichiometric calculation of combustion. The calculation of the losses and the efficiency of the boiler is following. Desulphurization is calculated briefly. The main part is devoted to the design and calculation of individual heat exchanging surfaces: superheater P1, superheaters 2 and 3, the wall superheater, the return chamber, hanging tubes, economizer and air heater. At the end is calculated total tolerance boiler. Work is completed with a diagram of temperature of working media and combustion.
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Purification of flue-gas desulfurization
Křesťan, Jan ; Špiláček, Michal (referee) ; Hrnčířová, Michaela (advisor)
The aim of this thesis is theoretical elaboration of flue-gas desulfurization and emission limits of sulphur dioxide. Thesis is divided into three parts. First part is about content of sulphur in fuel, formation of sulphur oxides and their influence on human health and environment. Second part is dedicated to sources of sulphur dioxide, present emission situation in the Czech Republic and emission limits of sulphur dioxide. The third part describes methods how to reduce emissions of sulphur dioxide, especially methods of flue-gas desulfurization. The thesis is based on technical texts, Czech laws about air pollution and data from the Czech hydrometeorological institute.
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Application of Commercial Sorbent into Coal-derived Syngas Desulfurization Field for Clean Coal technologies Development
Chien, H.-Y. ; Chyou, Y.-P. ; Svoboda, Karel
Advanced applications of producer gas (e.g. fuel cells, catalytic processes for liquid fuels production) require deep gas cleaning. Dry desulfurization technologies of fuel gas select appropriate sorbents according to material’s physical and chemical properties like sulfur capacity, attainable sulphur concentration in gas, price, etc.. The properties of a commercial sorbent were determined by means of XRD, ICP-OES, SEM and surface area measurement. The main components of the sorbent were ZnO, CuO and alumina. The content of effective metal oxides for desulfurization reaches approx. 70% , the surface area is 90.8 m2/g. The sorbent has been used as a moderate-temperature desulfurization agent (300-600oC) for H2S removal from model gas in a fixed-bed reactor. Its H2S removal properties are promising for application in clean coal technology field. The theoretical amount of sulfur capacity according to effective metal oxide content in the sorbent is 20.5 g-S/100 g.
Fulltext: content.csg -  PDF
Plný tet: SKMBT_C22015061614110 - PDF
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