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Multifunctional Catalyst Combination for the Direct Conversion of CO2 to Propane.
Ramirez, Adrian; Ticali, Pierfrancesco; Salusso, Davide; Cordero-Lanzac, Tomas; Ould-Chikh, Samy; Ahoba-Sam, Christian; Bugaev, Aram L; Borfecchia, Elisa; Morandi, Sara; Signorile, Matteo; Bordiga, Silvia; Gascon, Jorge; Olsbye, Unni.
Afiliação
  • Ramirez A; KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia.
  • Ticali P; Department of Chemistry, NIS Center and INSTM Reference Center, University of Turin, Turin 10125, Italy.
  • Salusso D; Department of Chemistry, NIS Center and INSTM Reference Center, University of Turin, Turin 10125, Italy.
  • Cordero-Lanzac T; SMN Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, Oslo N-0315, Norway.
  • Ould-Chikh S; KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia.
  • Ahoba-Sam C; SMN Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, Oslo N-0315, Norway.
  • Bugaev AL; The Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, Rostov-on-Don 344090, Russian Federation.
  • Borfecchia E; Department of Chemistry, NIS Center and INSTM Reference Center, University of Turin, Turin 10125, Italy.
  • Morandi S; Department of Chemistry, NIS Center and INSTM Reference Center, University of Turin, Turin 10125, Italy.
  • Signorile M; Department of Chemistry, NIS Center and INSTM Reference Center, University of Turin, Turin 10125, Italy.
  • Bordiga S; Department of Chemistry, NIS Center and INSTM Reference Center, University of Turin, Turin 10125, Italy.
  • Gascon J; KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia.
  • Olsbye U; SMN Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, Oslo N-0315, Norway.
JACS Au ; 1(10): 1719-1732, 2021 Oct 25.
Article em En | MEDLINE | ID: mdl-34723275
ABSTRACT
The production of carbon-rich hydrocarbons via CO2 valorization is essential for the transition to renewable, non-fossil-fuel-based energy sources. However, most of the recent works in the state of the art are devoted to the formation of olefins and aromatics, ignoring the rest of the hydrocarbon commodities that, like propane, are essential to our economy. Hence, in this work, we have developed a highly active and selective PdZn/ZrO2+SAPO-34 multifunctional catalyst for the direct conversion of CO2 to propane. Our multifunctional system displays a total selectivity to propane higher than 50% (with 20% CO, 6% C1, 13% C2, 10% C4, and 1% C5) and a CO2 conversion close to 40% at 350 °C, 50 bar, and 1500 mL g-1 h-1. We attribute these results to the synergy between the intimately mixed PdZn/ZrO2 and SAPO-34 components that shifts the overall reaction equilibrium, boosting CO2 conversion and minimizing CO selectivity. Comparison to a PdZn/ZrO2+ZSM-5 system showed that propane selectivity is further boosted by the topology of SAPO-34. The presence of Pd in the catalyst drives paraffin production via hydrogenation, with more than 99.9% of the products being saturated hydrocarbons, offering very important advantages for the purification of the products.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2021 Tipo de documento: Article