Description: Das Projekt "Distributed production of ultra-pure hydrogen from woody biomass" wird vom Umweltbundesamt gefördert und von Eidgenössische Technische Hochschule Zürich, Institut für Energietechnik durchgeführt. Production of ultra-pure hydrogen from wood This project focuses on an innovative process for the production of ultra-pure hydrogen from wood. The process is based on the redox reactions of iron oxide and could contribute towards reducing the Swiss transport and electricity sector's dependence on carbon-based sources of energy. Background Hydrogen as a source of energy could mitigate the effects of climate change. However, this can only be achieved if hydrogen is produced efficiently and sustainably, i.e. from renewable resources such as wood. Furthermore, hydrogen can only be used in low-temperature fuel cells if it is highly pure. The currently prevailing method of hydrogen production involves the steam reforming of methane, a process that generates carbon dioxide and carbon monoxide. The hydrogen thereby gained must be subjected to costly gas purification processes in order to reduce the carbon monoxide level to the relevant standard levels. Aim The main goal of this research project is to develop innovative, iron-based redox materials with the following properties: 1) high share of active material, 2) high reaction speed, 3) resistance to abrasion, 4) the capacity to crack tars (i.e. to split them into hydrocarbons with shorter chains) and 5) resistance to hydrogen sulphide and components of wood ash. The researchers will produce such materials using the Sol-Gel method, which allows for the synthesis of nano-structured materials. Another important aspect of this project involves coupling a wood gasifier directly to a fixed-bed reactor containing the redox material. This will help to demonstrate that the new process can be implemented in the industrial realm. Significance The insights gained in the course of this project could contribute towards a more sustainable and efficient production of hydrogen and a reduction of the Swiss transport and electricity sector's dependence on carbon-based sources of energy in the future.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Zürich ? Brennstoff ? Eisenoxid ? Schwefelwasserstoff ? Eisen ? Asche ? Brennstoffzelle ? Kohlenwasserstoff ? Teer ? Wasserdampf ? Wasserstoff ? Main ? Schweiz ? Kies ? Energieträger ? Erneuerbare Energie ? Festbettreaktor ? Kohlendioxid ? Kohlenmonoxid ? Methan ? Stromerzeugung ? Elektrizitätswirtschaft ? Holz ? Energetische Verwertung ? Gelöster organischer Kohlenstoff ? Wasserstoffherstellung ? Chemische Verfahrenstechnik ? Strommarkt ? Dampfreformierung ? Energiequelle ? Energietechnik ? Energiewirtschaft ? Erneuerbare Ressource ? Holzproduktion ? Synthese ? Verfahrenstechnik ? Biomassenutzung ? Reinigungsverfahren ? Splitt ? Energie ? Energiegewinnung ? Klimafolgen ? Holzbiomasse ? Baumbiomasse ? Forschungsprojekt ? Biomasse ? Chemische Reaktion ? Klimawirkung ? Verkehr ? Gasreinigung ? Energieträger, Erneuerbare Energie ? Vergaser ? Nanostrukturierung ?
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 2012-02-01 - 2015-01-31
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