Global ETD Search
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Showing 1 to 7 of 7 for “"Alkalien"”.
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Freisetzung von Alkalien und Halogeniden bei der Kohleverbrennung
Pressurized pulverized coal combustion (PPCC) is a novel, coal based combined cycle process which is comparatively simple in design and which offers efficiencies of about 55%. In order to protect the gas turbine from corrosion and erosion, a gas turbine compatible flue gas has to be supplied. The …
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Untersuchungen zur chemischen Heißgasreinigung bei der Hochtemperaturkohlevergasung
Nowadays, the IGCC prozess is the most efficient technique for power generation. However, there are many process steps which cause tremendous losses in efficiency. The highest losses occur during the cooling of the flue gas required for the gas cleaning. A reduction of loss in efficiency can be …
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Freisetzung anorganischer Spezies bei der thermochemischen Umwandlung biogener Festbrennstoffe
The thermochemical use of solid biomass will be important for the energy production in the future. If possible, all types of biomass, e.g. wood and residues of cereal production should be used. Integrated Gasification Combined Cycle (IGCC) seems to be a promising concept with efficiencies > 55%, in …
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Investigation of thermodynamic properties of alkali metals in oxide systems relevant to coal slags
Alkali release and behaviour of molten coal ashes (slags) are among the main problems in coal combustion and gasification processes. The alkali metals, bonded in the mineral matter of coal, are partly released during coal conversion. This leads to the formation of sticky deposits in boilers or hot …
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Untersuchungen zum Alkaliverhalten unter Oxycoal-Bedingungen
Oxycoal processes are promising power plant concepts which would allow easy CO2 removal from the exhaust products. These processes are based on the combustion of coal with recirculated flue gas that has been enriched in oxygen. To ensure the energy efficiency the oxygen may be provided by a high …
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Rauchgasseitige Korrosion von Nickelbasislegierungen für zukünftige 700C-Dampfkraftwerke
Coal is still the most important energy source in Germany. In 2009 it produced 42.9% of the overall German electrical power. Coal is available world-wide in large quantities and can be delivered economically. One of the possible ways to reduce COB2B pollution is the increase of efficiency of coal …