High-yield production of liquid fuels in CO₂ hydrogenation on a zeolite-free Fe-based catalyst

Abstract

Catalytic conversion of CO2 to long-chain hydrocarbons with high activity and selectivity is appealing but huge challenging. For conventional bifunctional catalysts with zeolite, poor coordination among catalytic activity, CO selectivity...

Microwave-assisted carbon-confined iron nanoparticles for steering CO2 hydrogenation to heavy hydrocarbons

“…The calculation method for CO 2 conversion, CO selectivity and hydrocarbons selectivity has been reported in our previous literatures. 22,39 Results and discussions Oriented synthesis of heavy hydrocarbons from CO 2 hydrogenation CO 2 hydrogenation performances were investigated over different materials supported Fe nanoparticles (K-Fe/AC-W-10, K-Fe/CNF-W-10, K-Fe/GA-W-10, K-Fe/MPC-W-10, and K-Fe/SiO 2 -C-550) with a condition of 320 o C, 2.0 MPa, 4800 mL g cat -1 h -1 . Catalytic activities and product distributions were summarized in Table 1.…”

“…The calculation method for CO 2 conversion, CO selectivity and hydrocarbon selectivity has been previously reported in the literature. 22,39 Results and discussions…”

CO2heterogeneous hydrogenation to carbon-based fuels: recent key developments and perspectives

“…157 More recently, Guo et al constructed a bimetallic CoFe catalyst for catalyzing CO 2 hydrogenation into long-chain hydrocarbons with a high yield. 158 They proposed that the presence of Co 3 Fe 7 alloy promotes the formation of oxygen-containing intermediates via a oxygenate mechanism path, which is conducive to break the ASF distribution (Fig. 10e).…”

“…10e). 158 It should not be ignored that the dominant product of liquid hydrocarbon products is generally unsaturated alkene for the promoter modified iron-based catalysts, which needs to be hydrogenated to high octane number gasoline hydrocarbon.…”

“…Copyright (2017), the American Chemical Society. (e) Reaction scheme over KZFe-5.0Co catalyst for the directional synthesis of long-chain hydrocarbons from CO 2 hydrogenation 158. Copyright (2017), The Royal Society of Chemistry.…”