www.acsept.org a new step in the future demonstration of advanced - PowerPoint PPT Presentation

www.acsept.org a new step in the future demonstration of advanced fuel processing Actinide reCycling by SEParation and Transmutation FP7 EURATOM CP 2007-211267 - (March 2008 – February 2012) Stephane.Bourg@cea.fr Clément Hill, Concha Caravaca, Chris Rhodes, Christian Ekberg 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

P&T strategies a significant common trunk despite the different national strategies envisaged for managing nuclear wastes in Europe optimize the use of natural Courtesy of JAEA ressources, recycle , increase resistance to proliferation U U « double strata » « double strata » PF PF R R T T U Pu U Pu P&T ADS ADS T T relax the constraints on GD phase out of nuclear energy reduce the monitoring period minimise the LLW to be disposed of 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

General Objective • Prepare future demonstrations of fuel treatment and refabrication at the pilot scale Heterogeneous recycling of the minor actinides (MA) Homogeneous + possible double strata + possible double recycling of the MA (Accelerator Driven Systems) U dep. U dep. U dep. U dep. GenIV GenIV GenIV GenIV Reprocessing Reprocessing FP FP Reprocessing Reprocessing FP FP reactors reactors reactors reactors MAs MAs U, Pu, MAs U, Pu, MAs U, Pu U, Pu Hydrometallurgy or Pyrometallurgy 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

ACSEPT - Organization 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

ACSEPT - Organization DM1 - DM3 - DM2 - Aqueous Process Pyro. Head End Head End Conceptual Steps Steps Studies, Safeguards & Early Integration Ligand Design Core & Process & Assesment Development Partitioning Salt Treatment Process for Recycling Development Science & Engineering Conversion Integration Waste “Fuel Conditioning Refabrication” 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

Objectives in Hydrometallurgy • Support laboratory scale demonstrations of advanced dissolution, separation and refabrication processes � Studies not only focussing on solvent extraction • Head-end steps (dissolution) • Fuel refabrication (sol-gel...) � Validation of the technical feasibility at the laboratory scale • Taking into account the diversity of future nuclear fuels and fuel cycles • Feasibility of each technological brick should be validated 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

Separation Process Concepts •Heterogeneous recycling To the less challenging to the more challenging •“regular” SANEX (on a DIAMEX raffinate), selective actinide extraction Two SANEX processes based on BTBP/DMDOHEMA and BTBP/TODGA systems were developed within EUROPART and tested in the beginning of ACSEPT. Data will be transferred to DM3 for process integration studies. If necessary, an appropriate DM1 R&D programme will be proposed. •“innovative” (stripping) SANEX (on a PUREX raffinate), Extraction of An, Ln and selective stripping of An. •“1 cycle” SANEX (on a PUREX raffinate), selective extraction of An TODGA BTBP DMDOHEMA 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

Separation Process Concepts •Homogeneous recycling •GANEX, group actinide extraction Two cycles: 1 st cycle : quantitative Uranium extraction, 2 nd cycle : group actinide extraction Only the second cycle is under studies within ACSEPT BTBP ? 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

What strategy in process development? Development of separation processes Ligand design and assessment Task 1: Organic synthesis Task 1: Of novel ligands Optimisation of solvent formulation Task 2: Selection Assessment of Complexing and criteria Extracting properties Task 2: Task 3: Assessment of ligand Molecular structural radiolytic & hydrolytic studies stability Selection criteria - Strong implication of the Project Task 3: Coordination Committee Flowsheet modelling & design - Strong reactivity of Partners and collaboration between Partners DM3 Task 4: Implementation of Process cold, spiked and HA counter-current tests 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

Find new molecules…and understand � Molecules under study Family Example To be used in TODGA O O O Co-extraction "An + Ln(III)" N N (+TBP) Oct Oct Oct Oct Oct Oct Oct Oct N N N N O O O O Bis-DiGlycolAmides Co-extraction "An + Ln(III)" O O O O O O NH NH H H N N O O O O N N Bis-Pyridines-Bis- N N Separation "An(III)/Ln(III)" Triazines (BTBP) N N N N Understand selectivity ! � New proposed molecules • Hydrophilic BTP derivatives for selective An(III) stripping • Hydrophilic DGA derivatives for Ln(III) stripping • Lipophilic pyridine-dicarboxamides derivatives � Challenge: can we be more innovative? Launching of an important brainstorming work on extracting molecules 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

Objectives in Pyrometallurgy • Develop pyrochemical separation processes beyond the current state of the art, as an alternative option for the longer term � Propose reprocessing schemes based on system studies and centered on the two reference cores of process identified during EUROPART - Electrorefining on solid aluminium cathode in molten chloride and - Liquid-liquid reductive extraction in molten fluoride/liquid aluminium � Go further in the alternative electrochemistry in molten fluoride and in the liquid-liquid reductive extraction in molten chloride � Validation of the scientific feasibility of each technological brick, at laboratory scale 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

Electrorefining in molten chloride • Based on the IFR concept, the process is centered on the selective electrorefining of An on solid aluminium cathode in molten chloride Conf. of Cl Under studies waste within ACSEPT Exhaustive Precipitation Electrolysis FIltration 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

Liquid-liquid reductive extraction • This process is centered on the selective extraction of An in molten fluoride / liquid aluminium. Fuel Dissolution Under studies within ACSEPT Conf. of metal. waste 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

Objectives of Domain 3 Domain 3 is a domain of engineering integration, covering aqueous, pyro, and hybrid systems • Industrialisation • Provide active feedback to Domains 1 & 2 • Integrate with work packages across Europe (SNE-TP) • Identify early challenges & refine axis of research • “Educate” about early integration (Two workshops organized last September during the Prague Meeting.) • studies on scale-up issues, on-line monitoring, corrosion • Design of MA bearing targets prior their fabrication and irradiation in HFR within the FAIRFUELS project 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

Education and Training Investing in people 4 one year ”post doc” scolarships are planned • Increase the individual young scientist knowlege in a broader field • Spread the knowledge and procedures used by the different partners • Criteria : Integration in term of partnership and in term of scientific scope Dissemination of knowledge, training • Appointing lecturers during ACSEPT meetings . • Organising two international workshops at half time and at the end of the project. • Funding the organisation of seminars, scientific workshops or summer schools • Developing a simple and easy access internal Communication System (electronic portal with login and passwords) •Collecting course and lecture materials for wider dissemination Communication / fostering visibility • Developing a open website for general access for information and adverticements • Making representations or presentation about ACSEPT where appropriate. • Promoting other actions that improve the visibility of the project or consortium 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

ACSEPT Consortium 12 European countries Links with Russia in Pyro Belgium (via ISTC 3261, 3749) Czech Republic France Germany Italy Netherlands Poland Portugal Spain Sweden Switzerland United Kingdom + Japan and Australia • 34 Partners Project of an exchange meeting with Kaeri in Pyro 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

ACSEPT Consortium European Nuclear Research Laboratory: Universities and/or National • JRC-ITU, Fundamental Research Laboratories : • Chalmers University, (Gothenborg) National Nuclear Research laboratories: • CTU, (Prague) • ANSTO • CNRS, (Strasbourg, Toulouse, Orléans, Paris) • CEA, • CSIC-ICMAB, (Madrid) • CIEMAT, • CUNI, (Prague) • ENEA, • ICHTJ,(Varsovie) • FZJ, • ICIQ, (Catalogne) • FZK-INE, • IIC, (Prague) • ITN • PoliMi, (Milan) • NNL-UK • RUG (Gröningen), • NRG • UEDIN, (Edinburgh) • PSI • ULG, (Liège) • ULP, (Strasbourg) • UNIPR, (Parme) Nuclear Industrial Companies: • UPMC (Paris) • ALCAN • UReading, (Reading) • AREVA NC • UTwente (Twente) • EDF, • NRI, Small and Medium Size Enterprises: • CRIEPI • CINC 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg

Thank you for your attention For more information Lectures of G. Modolo, J Uhlir, Posters III-3 (Komper-Geist), III-5 (Espartero), III-7 (Hill) 10th IEMPT, 6-10 October, 2008 -- ACSEPT -- S. Bourg