Depleted uranium oxide supported nickel catalyst for autothermal CO_(2)methanation in non-adiabatic reactor under induction heating

作     者：Lai Truong-Phuoc Jean-Mario Nhut Loïc Vidal Cuong Duong-Viet Sécou Sall Corinne Petit Christophe Sutter Mehdi Arab Alex Jourdan Cuong Pham-Huu Lai Truong-Phuoc;Jean-Mario Nhut;Loïc Vidal;Cuong Duong-Viet;Sécou Sall;Corinne Petit;Christophe Sutter;Mehdi Arab;Alex Jourdan;Cuong Pham-Huu

作者机构：Institute of Chemistry and Processes for EnergyEnvironment and Health(ICPEES)ECPMUMR 7515 CNRS-University of Strasbourg25 rue Becquerel67087 Strasbourg Cedex 02France BlackLeaf SAS210 rue Geiler de Kaysersberg67400 IllkirchFrance Institute of Materials Science of MulhouseIS2MUMR 7361Universitéde Haute-AlsaceCNRS15rue Jean Starcky-BP 248868057 MulhouseFrance ORANO TricastinDirection de La Recherche&DéveloppementSite du TRICASTIN BP 1626701 Pierrelatte CedexFrance 

出 版 物：《Journal of Energy Chemistry》 (能源化学(英文版))

年 卷 期：2023年第85卷第10期

页      面：310-323,I0010页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：ORANO Chimie-Enrichissement Co.for the financial support of this project。 

主　　题：CO_(2)methanation Auto-methanation Induction heating Depleted uranium oxide Electrification process Operando DRIFTS 

摘      要：Undoped nickel-based catalysts supported on depleted uranium oxide allow one to carry out CO_(2)methanation process under extremely low reaction temperature under atmospheric pressure and powered by a contactless induction heating.By adjusting the reaction conditions,the catalyst is able to perform CO_(2)methanation reaction under autothermal process operated inside a non-adiabatic reactor,without any external energy supply.Such autothermal process is possible thanks to the high apparent density of the UO_x which allows one to confine the reaction heat in a small catalyst volume in order to confine the exothermicity of the reaction inside the catalyst and to operate the reaction at equilibrium heat in-heat out.Such autothermal operation mode allows one to significantly reduce the complexity of the process compared to that operated using adiabatic reactor,where complete insulation is required to prevent heat disequilibrium,in order to reduce as much as possible,the heat exchange with the external medium.The catalyst displays an extremely high stability as a function of time on stream as no apparent deactivation.It is expected that such new catalyst with unprecedented catalytic performance could open new era in the field of heterogeneous catalysis where traditional supports show their limitations to operate catalytic processes under severe reaction conditions.