The success of catalytic schemes for the large-scale valorization of CO2 does not only depend on the development of active,selective and stable catalytic materials but also on the overall process design.Here we present a multidisciplinary study(from catalyst to plant and techno-economic/lifecycle analysis)for the production of green methanol from renewable H2 and CO2.We combine an in-depth kinetic anal-ysis of one of the most promising recently reported methanol-synthesis catalysts(InCo)with a thorough process simulation and techno-economic assessment.We then perform a life cycle assessment of the simulated process to gauge the real environmental impact of green methanol production from CO2.Our results indicate that up to 1.75 ton of CO2 can be abated per ton of produced methanol only if renew-able energy is used to run the process,while the sensitivity analysis suggest that either rock-bottom H2 prices(1.5 $ kg-1)or severe CO2 taxation(300 $ per ton)are needed for a profitable methanol plant.Besides,we herein highlight and analyze some critical bottlenecks of the process.Especial attention has been paid to the contribution of H2 to the overall plant costs,CH4 trace formation,and purity and costs of raw gases.In addition to providing important information for policy makers and industrialists,directions for catalyst(and therefore process)improvements are outlined.

Tomas Cordero-Lanzac;Adrian Ramirez;Alberto Navajas;Lieven Gevers;Sirio Brunialti;Luis M.Gandía;Andrés T.Aguayo;S.Mani Sarathy;Jorge Gascon

Department of Chemical Engineering,University of the Basque Country(UPV/EHU),PO Box 644,48080 Bilbao,Spain;Centre for Materials Science and Nanotechnology(SMN),Department of Chemistry,University of Oslo,N-0315 Oslo,Norway;King Abdullah University of Science and Technology,KAUST Catalysis Center(KCC),Advanced Catalytic Materials,Thuwal 23955,Saudi Arabia;Department of Science,Public University of Navarre(UPNA),Arrosadía Campus s/n,31006 Pamplona,Spain;Institute for Advanced Materials and Mathematics(InaMat2),Universidad Publica de Navarra(UPNA),Edificio Jerónimo de Ayanz,Campus de Arrosadia,Pamplona-Iru?a 31006,Spain;King Abdullah University of Science and Technology,Clean Combustion Research Center(CCRC),Thuwal 23955,Saudi Arabia

能源化学

[1]Tomas Cordero-Lanzac;Adrian Ramirez;Alberto Navajas;Lieven Gevers;Sirio Brunialti;Luis M.Gandía;Andrés T.Aguayo;S.Mani Sarathy;Jorge Gascon-.A techno-economic and life cycle assessment for the production of green methanol from CO2:catalyst and process bottlenecks)[J].能源化学,2022(05):255-266

InCo,abated,Especial,industrialists

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