Recent Advances in CO₂ Conversion to Chemicals and Fuels

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Янв. 24, 2025

Язык: Английский

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Cooperative and bifunctional Ga-Ca-Cr2O3@CaO structured monoliths as versatile platform for reactive capture of CO2 and its subsequent conversion to ethylene

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161701 - 161701

Опубликована: Март 1, 2025

Язык: Английский

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Metallic phase–free Zn-Al mixed oxide dual function materials enable high CO selectivity in reactive carbon capture from dilute CO2 streams

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125305 - 125305

Опубликована: Март 1, 2025

Язык: Английский

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Direct Conversion of CO₂ to Olefins over a Cr₂O₃/ZSM-5@CaO Cooperative and Bifunctional Material Under Isothermal Conditions

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(49), С. 17783 - 17792

Опубликована: Ноя. 20, 2024

Direct conversion of point-source CO2 into fine chemicals over cooperative and bifunctional materials (BFMs) - composed adsorbents catalysts has emerged as a promising approach to improve the energy efficiency carbon capture processes. In this study, material consisting Cr2O3/ZSM-5 catalyst CaO adsorbent was developed tested in CO2-oxidative dehydrogenation propane (CO2-ODHP) for reactive fixed bed reactor. First, prepared using two distinct methods: solid-state citrate sol-gel. The sol-gel method resulted small finely-distributed particles, allowing more accessible sites adsorption. Consequently, high adsorption capacity ∼14 mmol/g achieved with fast kinetics compared by method. then combined BFM synthesis CO2-ODHP process, targeting propylene production. extensively characterized provide insights BFM's surface chemistry, morphology, reaction mechanism process CO2-ODHP. results revealed that under isothermal adsorption-reaction conditions at 600 °C, 22.5%, selectivity 55.3%, an olefin 67.3% were achieved. excellent attributed acidity redox property catalyst, which facilitated pathway Overall, study renders Cr2O3/ZSM-5@CaO BFMs catalytic activity integrated ODHP reaction.

Язык: Английский

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Metallic Phase–Free Zn-Al Mixed Oxide Dual Function Materials Enable High Co Selectivity in Reactive Carbon Capture from Dilute Co2 Streams

Опубликована: Янв. 1, 2024

Язык: Английский

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