Catalytic properties of M-Cu/ZrO2 (M = Fe, Co, Ni) in steam reforming of ethanol

TiO2-supported catalysts for the steam reforming of ethanol

“…14% and selectivity to acetaldehyde and CO2 only. For both Co and Cu active phases, the main reaction path seems dehydrogenation of ethanol, as stated also elsewhere [44]. Finally, in spite of the lower activity, both metals were in general more able than Ni to promote the WGS reaction, as testified by the lower CO/CO2 ratio in the product distribution even reaching the equilibrium value in some cases (equilibrium CO/CO2 ratio ca.…”

Synthesis and characterization of Cu-X/γ-Al2O3 catalyst by intermittent microwave irradiation for hydrogen generation from dimethyl ether steam reforming

“…As a result, it leads to an increase in the conversion of CO to CO 2 and an increase in the hydrogen yield. The effect of ferric additives on the water-gas shift reaction has also been noted for Fe-Cu/ZrO 2 [17], Ni--Fe/La 2 O 2 CO 3 [19] and Fe/Ca-Al 2 O 3 [20]. The addition of ferric promotes leading to the better catalytic performance and the lowest CO selectivity of 1.4% in the case of 2Cu-Fe/9γ-Al 2 O 3 .…”

“…F H 2 are the molar flow rate of H 2 in the gas out reactant, F X,out (X = CH 4 , CO) are the molar flow rate of CH 4 or CO in the gas out reactant. The low-intensity of reflection from crystallized ferric oxide phase allows us to assume that in 2Cu-Fe/9γ--Al 2 O 3 , ferric compounds are found in an X-ray amorphous or highly dispersed state [17]. The peaks of Co 3 O 4 crystals can be found in 2Cu-Co/9γ-Al 2 O 3 (Fiure 2a, d)).…”

Direct Conversion of Syngas to Higher Alcohols over a CuCoAl|t‐ZrO2 Multifunctional Catalyst

“…reported that the strong basic sites derived from unsaturated O 2− anions had an important impact on the selectivity of CH 3 OH in CO 2 hydrogenation. ZrO 2 , possessing the intrinsic characteristics of high surface basicity, oxygen vacancies concentration and thermal stability, [27] can serve as a promising catalyst support to enhance higher alcohols selectivity and suppress the hydrocarbon formation. The different ZrO 2 crystal phases, such as tetragonal (t‐) and monoclinic (m‐) phase, played diverse roles in the synthesis of higher alcohols from syngas [28,29] .…”