Selective hydrocondensation of CO to light olefins with alumina-supported iron catalysts

Highly active and stable supported iron Fischer–Tropsch catalysts: Effects of support properties and SiO2 stabilizer on catalyst performance

“…Barrault et al [15] found that the activity of iron dispersed on high surface area alumina was lower and its methane selectivity higher than for iron dispersed on low-surface area alumina; activity was highest on an alumina of mid-range surface area (80 m 2 /g). These results corroborate the hypothesis that well-dispersed iron generally interacts strongly with the support, leading to low activity and high methane selectivity.…”

Effect of preparation method on catalytic performance, structure and surface reaction rates of MgO supported Fe–Co–Mn catalyst for CO hydrogenation

“…The CoMn catalysts are mainly composed of metallic cobalt particles dispersed in MnO [16], but Fe-Co catalyst favor intermetallic alloy formation [17,18]. The addition of Mn to Fe or Co catalysts brought about a significant increase in light olefins formation and a decrease in methane selectivity [19][20][21]. The method used to prepare catalysts is one of the major contributing factors that determine the physical as well as chemical properties of the final catalytic material.…”

Supported Iron Nanoparticles as Catalysts for Sustainable Production of Lower Olefins

“…If highly dispersed iron oxide interacts strongly with a high surface area oxidic support, the conversion of iron oxide into the active phase (iron carbide) is impeded (14). Next to alumina (15,16), zeolites (18), aluminophosphate molecular sieves (19) and carbonaceous materials (20,21) have been explored as catalyst supports for iron-based FTO catalysts. Table S1 summarizes the most relevant results reported in literature regarding the development of supported iron catalysts for the selective production of lower olefins using carbon or alumina as a support.…”

“…Iron supported on activated carbon (AC) displayed a high catalytic activity but also either low selectivity to light olefins (20) or a high deactivation rate (21). After many years of research it has been regularly observed that supported iron catalysts which are the most active are the least selective (15).…”