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SOLAR HYDROGEN PRODUCTION BY A TWO-STEP CYCLE BASED ON MIXED IRON OXIDES

Roeb, Martin and Sattler, Christian and Klüser, Ruth and Monnerie, Nathalie and de Oliveira, Lamark and Konstandopoulos, Athanasios G. and Agrafiotis, Christos and Zaspalis, V.T. and Nalbandian, L. and Steele, Andrew and Stobbe, Per (2005) SOLAR HYDROGEN PRODUCTION BY A TWO-STEP CYCLE BASED ON MIXED IRON OXIDES. In: ASME International Solar Energy Conference 2005, ISEC2005-76126. ASME. ASME International Solar Energy Conference 2005, 2005-08-06 - 2005-08-12, Orlando, FL (USA).

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Abstract

solar energy into a fuel is the dissociation of water to oxygen and hydrogen, carried out via a two-step process using metal oxide redox systems such as mixed iron oxides, coated upon multi-channeled honeycomb ceramic supports capable of absorbing solar irradiation, in a configuration similar to that encountered in automobile exhaust catalytic converters. With this configuration, the whole process can be carried out in a single solar energy converter, the process temperature can be significantly lowered compared to other thermo-chemical cycles and the re-combination of oxygen and hydrogen is prevented by fixing the oxygen in the metal oxide. For the realization of the integrated concept, research work proceeded in three parallel directions: synthesis of active redox systems, manufacture of ceramic honeycomb supports and manufacture, testing and optimization of operating conditions of a thermochemical solar receiver-reactor. The receiver-reactor has been developed and installed in the solar furnace in Cologne, Germany. It was proven that solar hydrogen production is feasible by this process demonstrating that multi cycling of the process was possible in principle.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:SOLAR HYDROGEN PRODUCTION BY A TWO-STEP CYCLE BASED ON MIXED IRON OXIDES
Authors:
AuthorsInstitution or Email of Authors
Roeb, MartinUNSPECIFIED
Sattler, ChristianUNSPECIFIED
Klüser, RuthUNSPECIFIED
Monnerie, NathalieUNSPECIFIED
de Oliveira, LamarkUNSPECIFIED
Konstandopoulos, Athanasios G.CERTH/CPERI/APTL
Agrafiotis, ChristosCERTH/CPERI/APTL
Zaspalis, V.T.CERTH/CPERI/APTL
Nalbandian, L.CERTH/CPERI/APTL
Steele, AndrewJonson Matthey
Stobbe, PerStobbeTech
Date:6 August 2005
Journal or Publication Title:ASME International Solar Energy Conference 2005
Refereed publication:Yes
In ISI Web of Science:No
Page Range:ISEC2005-76126
Editors:
EditorsEmail
Thornbloom, MikeUNSPECIFIED
Jones, Scott A.UNSPECIFIED
Publisher:ASME
Series Name:ISEC
Status:Published
Keywords:Hydrogen, Redox System, honeycomb reactors, solar, Thermochemical Cycle
Event Title:ASME International Solar Energy Conference 2005
Event Location:Orlando, FL (USA)
Event Type:international Conference
Event Dates:2005-08-06 - 2005-08-12
Organizer:American Society of Mechanical Engineers
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:E SF - Solar research (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solare Stoffumwandlung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Technical Thermodynamics > Solar Research
Deposited By: Dr.rer.nat. Christian Sattler
Deposited On:09 Aug 2007
Last Modified:12 Dec 2013 20:25

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