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- Title
Transforming carbon dioxide into jet fuel using an organic combustion-synthesized Fe-Mn-K catalyst.
- Authors
Yao, Benzhen; Xiao, Tiancun; Makgae, Ofentse A.; Jie, Xiangyu; Gonzalez-Cortes, Sergio; Guan, Shaoliang; Kirkland, Angus I.; Dilworth, Jonathan R.; Al-Megren, Hamid A.; Alshihri, Saeed M.; Dobson, Peter J.; Owen, Gari P.; Thomas, John M.; Edwards, Peter P.
- Abstract
With mounting concerns over climate change, the utilisation or conversion of carbon dioxide into sustainable, synthetic hydrocarbons fuels, most notably for transportation purposes, continues to attract worldwide interest. This is particularly true in the search for sustainable or renewable aviation fuels. These offer considerable potential since, instead of consuming fossil crude oil, the fuels are produced from carbon dioxide using sustainable renewable hydrogen and energy. We report here a synthetic protocol to the fixation of carbon dioxide by converting it directly into aviation jet fuel using novel, inexpensive iron-based catalysts. We prepare the Fe-Mn-K catalyst by the so-called Organic Combustion Method, and the catalyst shows a carbon dioxide conversion through hydrogenation to hydrocarbons in the aviation jet fuel range of 38.2%, with a yield of 17.2%, and a selectivity of 47.8%, and with an attendant low carbon monoxide (5.6%) and methane selectivity (10.4%). The conversion reaction also produces light olefins ethylene, propylene, and butenes, totalling a yield of 8.7%, which are important raw materials for the petrochemical industry and are presently also only obtained from fossil crude oil. As this carbon dioxide is extracted from air, and re-emitted from jet fuels when combusted in flight, the overall effect is a carbon-neutral fuel. This contrasts with jet fuels produced from hydrocarbon fossil sources where the combustion process unlocks the fossil carbon and places it into the atmosphere, in longevity, as aerial carbon - carbon dioxide. Design and discovery of catalysts to make clean energy and mitigate the harmful effect of greenhouse gases remains a massive challenge. Here the authors report a combustion-synthesised iron-based catalyst of high activity and selectivity for directly converting CO2 to aviation jet fuel.
- Subjects
JET fuel; FISCHER-Tropsch process; CARBON dioxide; FOSSIL fuels; CATALYSTS; HYDROGEN as fuel; CARBON dioxide fixation
- Publication
Nature Communications, 2020, Vol 11, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-020-20214-z