1
Life cycle assessment on Pyroprocess as a nuclear spent fuel management technology Heetae Kim1 · Tae Kyu Ahn1 · Claudio Tenreiro1,2 1 Department of Energy Science, Sungkyunkwan University, South Korea 2 Facultad de Ingenieria, Universidad de Talca, Chile Abstract In this work, we estimate life cycle impact of Pyroprocess to induce the nuclear technology development to be more sustainable. At first, a system model was built by using experimental data and demo-scale inventories. Electricity consumption is collected as a major input data. The result shows that Electro-refining process emits the largest amount of greenhouse gas. Result U TRU Waste GHG emissions (t CO /1 t U) Salt treatment Electro winning Electro refining Electro reduction Off treatment Voloxi -dation Cutting decladding 115 59 . 4 154 62 . 4 18 . 6 30 . 8 2 . 64 2-eq Acknowledgement The authors would like to thank J. Park for her graphical art work. This research was supported; - WCU program (R31-2008-10029) through the NRF funded by Korea the Korea government MEST - Human Resources Development program (No. 20124010203270) of the KETEP grant funded by. Korea government MKE Conclusions/Discussions - The system model of Pyroprocess is designed. - Electro-refining emits the largest amount of greenhouse gas. (hot spot) - Processes dealing with salts cause almost 90% of greenhouse gas emissions. - Various inventories will improve the LCA result. - Salt treatment processes need to improve heat insulation properties and use highly efficient pyrogenetic equipments. More information You can check detail supporting materials such as inventories, a detail process scheme, etc and contact the author by scanning the QR codes Background/Introduction 300,000 Year Open fuel cycle U Nuclear generations LCA done 300 Year Closed fuel cycle U LCA not yet !! Ⅲ Ⅳ Ⅱ Ⅰ Recycles nuclear wastes Less final nuclear wastes Superior nuclear proliferation resistance U Pyroprocess Shorter cooling time A key technology of Closed fuel cycle System description and allocation Spent fuel TRU Electro-winning Voloxidation Cutting Recycled U Waste Salt waste treatment Off-gas treatment Process Utility Argon ETC HVAC Crane Air Supply Water supply Illumination In/out Hot spot analysis of based on the electricity consumption Goal & Scope Pyroprocess Centre eco nvent LCA DB V2 Methodology U 1t 1 ton of Uranium reprocessed Simapro 7 Electro-refining Electro-reduction
