Tandem conversion of CO2 to valuable hydrocarbons in highly concentrated potassium iron catalysts
Chowdhury, Abhishek Dutta
Al Abdulghani, Abdullah
KAUST DepartmentChemical Engineering Program
Chemical Science Program
Imaging and Characterization Core Lab
KAUST Catalysis Center (KCC)
Physical Science and Engineering (PSE) Division
Permanent link to this recordhttp://hdl.handle.net/10754/652874
MetadataShow full item record
AbstractThe alarming atmospheric concentration and continuous emissions of carbon dioxide (CO2) require immediate action. As a result of advances in CO2 capture and sequestration technologies (generally involving point sources such as energy generation plants), large amounts of pure CO2 will soon be available. In addition to geological storage and other applications of the captured CO2, the development of technologies able to convert this carbon feedstock into commodity chemicals may pave the way towards a more sustainable economy. Here, we present a novel multifunctional catalyst consisting of Fe2O3 encapsulated in K2CO3 that can transform CO2 into olefins via a tandem mechanism. In contrast to traditional systems in Fischer-Tropsch reactions, we demonstrate that when dealing with CO2 conversion (in contrast to CO), very high K loadings are key to activate CO2 via the well-known ‘potassium carbonate mechanism’. The proposed catalytic process is demonstrated to be as productive as existing commercial processes based on synthesis gas while relying on economically and environmentally advantageous CO2 feedstock.
CitationRamirez A, Ould-Chikh S, Gevers L, Dutta Chowdhury A, Abou Hamad E, et al. (2019) Tandem conversion of CO2 to valuable hydrocarbons in highly concentrated potassium iron catalysts. ChemCatChem. Available: http://dx.doi.org/10.1002/cctc.201900762.
SponsorsFunding for this work was provided by King Abdullah University of Science and Technology (KAUST). This research used resources of the Supercomputing Laboratory at KAUST. The FAME-UHD project is financially supported by the French "Grand Emprunt" EquipEx (EcoX, ANR-10-EQPX-27-01), the CEA-CNRS CRG consortium and the INSU CNRS institute.