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Sulphur based thermochemical cycles: Development and assessment of key components of the process

Roeb, Martin and Thomey, Dennis and de Oliveira, Lamark and Sattler, Christian and Fleury, G. and Pra, F. and tochon, P. and Brevet, A. and Roux, G. and Gruet, N. and Mansilla, Christine and Le Naour, Francois and Poitou, Sabine and Allen, Ray W.K. and Elder, Rachael and Kargiannakis, G. and Agrafiotis, Christos and Zygogianni, A. and Pagkoura, C. and Konstandopoulos, Athanasios G. and Giaconia, Alberto and Sau, Salvatore and Tarquini, Pietro and Haussener, Sophia and Steinfeld, Aldo and Canadas, Immaculada and Orden Martinez, Alfredo and Ferrato, Marc (2013) Sulphur based thermochemical cycles: Development and assessment of key components of the process. International Journal of Hydrogen Energy, 38, pp. 6197-6204. Elsevier. DOI: 10.1016/j.ijhydene.2013.01.068 ISSN 0360-3199

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Official URL: http://dx.doi.org/10.1016/j.ijhydene.2013.01.068

Abstract

HycycleS was a cooperation of nine European partners and further non-European partners and aimed at the qualification and enhancement of materials and components for key steps of solar and nuclear powered thermochemical cycles for hydrogen generation from water. The focus of HycycleS was the decomposition of sulphric acid (H2SO4) which is the central step of the sulphur-based family of those processes. Emphasis was put on materials and components for H2SO4 evaporation, decomposition, and sulphur dioxide separation. The suitability of materials and components was emonstrated by decomposing H2SO4 and separating its decomposition products in scalable prototypes. Silicon Carbide (SiC) turned out as the material of choice for the components facing the most corrosive environment of the process: the sulphuric acid evaporator and decomposer. Candidate catalysts for the high temperature reduction of sulphur trioxide have been screened and analysed. CreFe mixed oxide (Fe0.7Cr1.3O3) was the most promising material among the ones examined. Based on the use of the highlighted construction and catalyst materials prototype decomposers have been developed and tested. The successful fabrication and testing of a large size heat exchanger/reactor prototype composed of SiC plates shows promise with respect to its use for H2SO4 composition in the SI and HyS cycle. A solar specific decomposer prototype was developed, realised and successfully tested on sun in a solar furnace. A novel approach of using dense oxygen transport membranes, made from complex ceramics, for oxygen removal from the H2SO4 decomposition product in order to shift the equilibrium in favour of increased decomposition was investigated. The membranes stability and suitability for carrying out this separation was investigated experimentally. Parallel to this, a conventional oxygen separator, a low-temperature wet scrubbing system, was investigated as well. Scale-up scenarios of components and of the process were addressed.

Item URL in elib:https://elib.dlr.de/83193/
Document Type:Article
Title:Sulphur based thermochemical cycles: Development and assessment of key components of the process
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Roeb, MartinMartin.roeb (at) dlr.deUNSPECIFIED
Thomey, Dennisdennis.thomey (at) dlr.deUNSPECIFIED
de Oliveira, Lamarklamark.de-oliveira (at) dlr.deUNSPECIFIED
Sattler, Christianchristian.sattler (at) dlr.deUNSPECIFIED
Fleury, G.CEA DRT/LITENUNSPECIFIED
Pra, F.CEA DRT/LITENUNSPECIFIED
tochon, P.CEA DRT/LITENUNSPECIFIED
Brevet, A.CEA DRT/LITENUNSPECIFIED
Roux, G.CEA DRT/LITENUNSPECIFIED
Gruet, N.CEA DEN/DANS/DPCUNSPECIFIED
Mansilla, ChristineCEA DENUNSPECIFIED
Le Naour, FrancoisCEA DRT/LITENUNSPECIFIED
Poitou, SabineCEA DTN/DENUNSPECIFIED
Allen, Ray W.K.University of SheffieldUNSPECIFIED
Elder, RachaelUniversity of SheffieldUNSPECIFIED
Kargiannakis, G.CERTH/CPERI/APTLUNSPECIFIED
Agrafiotis, Christoschristos.agrafiotis (at) dlr.deUNSPECIFIED
Zygogianni, A.CERTH/CPERI/APTLUNSPECIFIED
Pagkoura, C.CERTH/CPERI/APTLUNSPECIFIED
Konstandopoulos, Athanasios G.CERTH/CPERI APTLUNSPECIFIED
Giaconia, AlbertoENEAUNSPECIFIED
Sau, SalvatoreENEAUNSPECIFIED
Tarquini, PietroENEAUNSPECIFIED
Haussener, SophiaEPFLUNSPECIFIED
Steinfeld, AldoETHZUNSPECIFIED
Canadas, ImmaculadaCIEMATUNSPECIFIED
Orden Martinez, AlfredoEmpresarios AgrupadosUNSPECIFIED
Ferrato, MarcBoostechUNSPECIFIED
Date:10 May 2013
Journal or Publication Title:International Journal of Hydrogen Energy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:38
DOI :10.1016/j.ijhydene.2013.01.068
Page Range:pp. 6197-6204
Publisher:Elsevier
ISSN:0360-3199
Status:Published
Keywords:Hydrogen production Thermochemical cycles Sulphuric acid decomposition Heat exchanger Silicon carbide Solar tower
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Systems (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solare Verfahrenstechnik (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Solare Verfahrenstechnik
Deposited By: Sattler, Prof. Dr. Christian
Deposited On:22 Jul 2013 13:29
Last Modified:12 Dec 2013 22:07

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