Description: Das Projekt "SynMet - Solar Combined ZnO-Reduction and Natural Gas Reforming for the Co-Production of Zinc and Syngas" wird vom Umweltbundesamt gefördert und von Paul Scherrer Institut, Forschungsbereich Allgemeine Energie durchgeführt. Zinc and synthesis gas (syngas), besides being important material commodities, are attractive as energy carriers. Zinc finds applications in Zn/air fuel cells and batteries, and it can also be reacted with water to form hydrogen. Syngas is the building block of a wide variety of synthetic liquid fuels, including methanol - a promising substitute of gasoline for fuelling cars. However, the current industrial production techniques of both zinc and syngas carry severe environmental consequences, especially CO2 emissions. These emissions can be reduced substantially, by combining both the production of Zn and syngas and by replacing fossil fuels with concentrated solar energy as the source of high-temperature process heat. The use of solar energy for supplying the enthalpy of the reaction upgrades the calorific value of the initial reactants by 39 percent. Thus, using the SynMet process, solar energy is converted into storable and transportable chemical fuels. Scheme of the process: In the first, endothermic step, concentrated solar radiation is used for co-producing zinc and syngas by the combined ZnO-reduction and Natural Gas reforming processes in a solar chemical reactor called SynMet; syngas could further be processed to methanol. In the second step, zinc is either used to split water and form H2 in a water-splitting reactor, or, alternatively, zinc is used in a Zn/air fuel cell or battery to generate electrical work. In either case, the chemical product of the second step is ZnO which, in turn, is recycled to the first step.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Flüssigtreibstoff ? Benzin ? Flüssigbrennstoff ? Fossiler Brennstoff ? Brennstoff ? CO2-Emission ? Enthalpie ? Erdgas ? Methanol ? Arsen ? Brennstoffzelle ? Prozesswärme ? Solarenergie ? Solarstrahlung ? Synthesegas ? Umweltauswirkung ? Wasserstoff ? Zink ? Batterie ? Emissionsquelle ? Energieträger ? Gebäude ? Kies ? Kohlendioxid ? Schadstoffemission ? Chemischer Reaktor ? Brennwert ? Chemikalien ? Industrieproduktion ? Reaktor ? Wasser ? Splitt ? Emission ?
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1999-01-01 - 2002-12-31
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