Dissertation: Wirbelschichtvergasung biogener Abfallstoffe zur Erzeugung von Methan, Strom und Wärme

Wirbelschichtvergasung biogener Abfallstoffe zur Erzeugung von Methan, Strom und Wärme

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Schriftenreihe technische Forschungsergebnisse, volume 44

Hamburg , 290 pages

ISBN 978-3-339-12332-9 (print) |ISBN 978-3-339-12333-6 (eBook)

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In addition to expanding supply-dependent renewable energies such as wind and solar, the energetic use of biomass can make a noticeable contribution to reducing climate-relevant emissions and substituting fossil fuels in all sectors of the energy system. In order to avoid competition with material use and to reduce energy supply costs, biogenic waste materials can also be used for conversion into secondary energy sources. However, due to their heterogeneous properties, these pose particular challenges for the development of corresponding conversion processes.

Against this background, the aim of this thesis is to develop and apply a methodology for the development, analysis and evaluation of plant concepts for the provision of synthetic natural gas (SNG) as well as electricity and heat (CHP) based on the allothermal dual fluidized bed gasification of biogenic waste materials . To assess the climate efficiency, the greenhouse gas reduction costs are calculated on the basis of an economic and ecological analysis and compared with the use of untreated wood chips as a reference. Based on the state of the art, reference systems are defined and further developed for the use of waste wood, green cuttings and leaves. In order to investigate alternative technical solutions and for optimization, the applied technologies and processes are varied in the areas of gasification, gas cleaning and processing as well as gas utilization. The influence of the bed material in the gasification process, different processes for tar removal in gas cleaning and various methods for methanation and power generation are examined in more detail.

Ihr Werk im Verlag Dr. Kovač

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