HYTHEC: An EC funded search for a long term massive hydrogen production route using solar and nuclear technologies

Duigou, Alain Le; Borgard, Jean-Marc; Larousse, B.; Doizi, D.; Allen, Ray; Ewan, B. C. R.; HPRIESTMAN, G; Elder, Rachael H.; Devonshire, R.; Ramos, Violeta

doi:10.1016/j.ijhydene.2006.10.047

Cited by 125 publications

(42 citation statements)

References 7 publications

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“…The adiabatic UT-3 cycle, the SulfurIodine (SI) and the Hybrigd-Iodine (HI) cycle receive much attention in the literature [64][65][66][67]. These cycles are based on a reaction scheme that incorporates more than three reactions leading to lower inherent efficiencies and high efforts for the product separation after each step.…”

Section: Thermochemical Cycles Under Considerationmentioning

confidence: 99%

Functioning devices for solar to fuel conversion

Mul¹,

Schacht²,

Swaaij³

et al. 2012

Chemical Engineering and Processing: Process Intensification

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a b s t r a c tThis paper provides a perspective on the technologies capable of converting solar energy, CO 2 and H 2 O into an easy to use fuel. The paper addresses bio-based approaches, but mainly focuses on (i) the combination of photovoltaic (PV) devices and electrocatalysis, (ii) single unit operation by photocatalytic conversion, and (iii) solar thermal conversion. Each option is described in a general manner, including a brief evaluation of the advantages and disadvantages. Also suggestions for future research endeavours are given. Based on the used literature data, for electrocatalytic and photocatalytic technologies, dramatic improvements should be made in material optimization, as well as reactor design and operation. Large efficiency gains are necessary to enable use of these technologies in practice. Solar thermal conversion is more mature, and requires specific optimization in processing, as will be discussed.

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Section: Thermochemical Cycles Under Considerationmentioning

confidence: 99%

Functioning devices for solar to fuel conversion

Mul¹,

Schacht²,

Swaaij³

et al. 2012

Chemical Engineering and Processing: Process Intensification

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“…In the European project HYTHEC SiC was selected as the material of choice for a solar absorber being at the same time the decomposer for H 2 SO 4 in a receiver-reactor (Le Duigou et al, 2007). This is due to the combination of the above mentioned chemical resistance and thermo-mechanical properties plus its excellent optical properties (high absorptivity for radiation).…”

Section: Construction Materialsmentioning

confidence: 99%

“…The use of porous ceramics and plate heat exchangers made of SiC means this material may well be suitable as a substrate. HYTHEC has already shown that it is feasible to coat such material with noble metal and iron oxide catalysts exhibiting high and stable activity throughout experimental campaigns (Le Duigou et al, 2007).…”

Section: Catalystsmentioning

confidence: 99%

HycycleS: a project on nuclear and solar hydrogen production by sulphur-based thermochemical cycles

Roeb

Thomey

Graf

et al. 2011

IJNHPA

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Abstract:The European FP7 project HycycleS focuses on providing detailed solutions for the design of specific key components for sulphur-based thermochemical cycles for hydrogen production. The key components necessary for the high temperature part of those processes, the thermal decomposition of H 2 SO 4 , are a compact heat exchanger for SO 3 decomposition for operation by solar and nuclear heat, a receiver-reactor for solar H 2 SO 4 decomposition, and membranes as product separator and as promoter of the SO 3 decomposition. Silicon carbide has been identified as the preferred construction material. Its stability is tested at high temperature and in a highly corrosive atmosphere. Another focus is catalyst materials for the reduction of SO 3 . Requirement specifications were set up as basis for design and sizing of the intended prototypes. Rigs for corrosion tests, catalyst tests and selectivity of separation membranes have been designed, built and completed. Prototypes of the mentioned components have been designed and tested.Keywords: sulphur; catalyst; silicon carbide; membranes; thermochemical cycle.Reference to this paper should be made as follows: Roeb, M., Thomey, D., Graf, D., Sattler, C., Poitou, S., Pra, F., Tochon, P., Mansilla, C., Robin, J-C., Le Naour, F., Allen, R.W.K., Elder, R., Atkin, I., Karagiannakis, G., Agrafiotis, C., Konstandopoulos, A.G., Musella, M., Haehner, P., Giaconia, A., Sau, S., Tarquini, P., Haussener, S., Steinfeld, A., Martinez, S., Canadas, I., Orden, A., Ferrato, M., Hinkley, J., Lahoda, E. and Wong, B. (2011) 'HycycleS: a project on nuclear and solar hydrogen production by sulphur-based thermochemical cycles ', Int. J. Nuclear Hydrogen Production and Applications, Vol. 2, No. 3, Sabine Poitou studied Chemical Engineering at ENSIC (Ecole Nationale Supérieure des Industries Chimiques) in the National Polytechnic Institute of Lorraine (1991Lorraine ( -1994. Working at the CEA since 1998 as Research Engineer, she was involved on nuclear waste treatment and conditioning studies until 2007. Since 2008, her activity has concentrated on industrial development of hydrogen production with nuclear reactor coupled processes. George Karagiannakis received his PhD in Chem. Eng., at the Aristotle Univ. of Thessaloniki, Greece. He has been an Affiliated Researcher at APTL since 2006 and a member of the Nanoparticles and Catalysts Group. He has expertise in catalytic and electrocatalytic studies, with emphasis in those involving hydrogen productions. He has participated in several national and EU research projects.Christos Agrafiotis is a Principal Researcher at CPERI, Chemical Engineer. He received his PhD in Chem. Eng., from SUNY, Buffalο, USΑ. He has more than 15 years of expertise in powder synthesis and catalytic coating of monolithic reactors, participated in several EU-and nationally-funded research projects in these areas, and he is the author of more than 40 relevant publications in international journals and proceedings. Athanasios Konstandopoulos is the Director of APTL and C...

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“…Recently, solar driven evaporation and decomposition have gained attention. Two exemplary research projects funded by the European Commission are HYTEC [31] and HycycleS [32]. Equilibrium calculations of the reaction are shown in figure 1 for 0.1, 1 and 10 bar.…”

Section: Introductionmentioning

confidence: 99%

Multi-Scale Modelling of a Solar Reactor for the High-Temperature Step of a Sulphur-Iodine-Based Water Splitting Cycle

Haussener¹,

Thomey²,

Roeb³

et al. 2012

Volume 1: Heat Transfer in Energy Systems; Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer;

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The 3-step sulphur-iodine-based thermochemical cycle for splitting water is considered. The high-temperature step consists of the evaporation, decomposition, and reduction of H 2 SO 4 to SO 2 using concentrated solar process heat. This step is followed by the Bunsen reaction and HI decomposition. The solar reactor concepts proposed are based on a shell-and-tube heat exchanger filled with catalytic packed beds and on a porous ceramic foam to directly absorb solar radiation and act as reaction site. The design, modeling, and optimization of the solar reactor using complex porous structures relies on the accurate determination of their effective heat and mass transport properties. Accordingly, a multi-scale approach is applied. Ceramic foam samples are scanned using highresolution X-ray tomography to obtain their exact 3D geometrical configuration, which in turn is used in direct porelevel simulations for the determination of the morphological and effective heat/mass transport properties. These are incorporated in a volume-averaged (continuum) model of the solar reactor. Model validation is accomplished by comparing numerically simulated and experimentally measured temperatures in a 1 kW reactor prototype tested in a solar furnace. The model is further applied to analyze the influence of foam properties, reactor geometry, and operational conditions on the reactor performance.

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HYTHEC: An EC funded search for a long term massive hydrogen production route using solar and nuclear technologies

Cited by 125 publications

References 7 publications

Functioning devices for solar to fuel conversion

Functioning devices for solar to fuel conversion

HycycleS: a project on nuclear and solar hydrogen production by sulphur-based thermochemical cycles

Multi-Scale Modelling of a Solar Reactor for the High-Temperature Step of a Sulphur-Iodine-Based Water Splitting Cycle

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