Designing a Multifunctional Catalyst for the Direct Production of Gasoline-Range Isoparaffins from CO2

Abhay Dokania, Samy Ould-Chikh, Adrian Galilea, Jose Luis Cerrillo, Antonio Aguilar, Artem Russkikh, Ahmed S. Alkhalaf, Idoia Hita, Anastasiya Bavykina, Genrikh Shterk, Nimer Wehbe, Alain Prat, Eric Lahera, Pedro Castaño, Emiliano Fonda, Jean-Louis Hazemann, Jorge Gascon

Research output: Contribution to journalArticlepeer-review

Abstract

The production of carbon-neutral fuels from CO2 presents an avenue for causing an appreciable effect in terms of volume toward the mitigation of global carbon emissions. To that end, the production of isoparaffin-rich fuels is highly desirable. Here, we demonstrate the potential of a multifunctional catalyst combination, consisting of a methanol producer (InCo) and a Znmodified zeolite beta, which produces a mostly isoparaffinic hydrocarbon mixture from CO2 (up to ∼85% isoparaffin selectivity among hydrocarbons) at a CO2 conversion of >15%. The catalyst combination was thoroughly characterized via an extensive complement of techniques. Specifically, operando X-ray absorption spectroscopy (XAS) reveals that Zn (which plays a crucial role of providing a hydrogenating function, improving the stability of the overall catalyst combination and isomerization performance) is likely present in the form of Zn6O6 clusters within the zeolite component, in contrast to previously reported estimations.
Original languageEnglish (US)
JournalJACS Au
DOIs
StatePublished - Oct 6 2021

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