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Integrated CO2 Capture and Conversion into Valuable Hydrocarbons

preprint
submitted on 10.01.2019 and posted on 10.01.2019 by Adrian Ramirez, Samy Ould-Chikh, Lieven Gevers, Abhishek Dutta Chowdhury, Edy Abou-hamad, Antonio Aguilar-Tapia, Jean-Louis Hazemann, Nimer Wehbe, Abdullah J. Al Abdulghani, Sergey M. Kozlov, Luigi Cavallo, Jorge Gascon
The 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 capture and simultaneously transform CO2 into olefins. In contrast to traditional systems in Fischer-Tropsch reactions, we demonstrate that when dealing with CO2 activation (in contrast to CO), very high K loadings are key to capturing the 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.

History

Email Address of Submitting Author

jorge.gascon@kaust.edu.sa

Institution

King Abdullah University of Science and Technology, KAUST

Country

Saudi Arabia

ORCID For Submitting Author

0000-0001-7558-7123

Declaration of Conflict of Interest

No conflict of interest

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