Effect of preparation conditions on the catalytic performance of Co/Ni catalysts for CO hydrogenation

Characterization of CoMn catalyst by in situ X-ray absorption spectroscopy and wavelet analysis for Fischer–Tropsch to olefins reaction

“…The key challenges for the FTO process are suppressing methane formation and improving the ratio of desired unsaturated hydrocarbons to less valuable saturated hydrocarbons amongst the C 2 -C 4 products [10] . However, the traditional FT metals catalysts, such as iron and cobalt, are limited for the generation of overmuch methane or high-molecular-weight paraffins, respectively [11][12][13] . Zhong et al [14] discovered that Co 2 C nanostructures as a new FTO active phase exhibited low methane formation and high lower olefins selectivity under mild reaction conditions (250 °C and 1 bar).…”

Assessment of composition and calcination parameters in Fischer-Tropsch synthesis over Fe–Mn–Ce/γ-Al2O3 nanocatalyst

“…As well as reduces catalyst adsorption abilities for CO and H 2 . In our previous studies [24,[42][43][44][45][46], we indicated the importance of calcination parameters also, the obtained results have demonstrated that the change in the calcination parameters leads to more thermodynamically stable phase changing. The main goal of this study is to assessment the influence of nanocatalyst composition and calcination parameters on the activity and selectivity of iron-manganese-cerium mixed oxide nanocatalyst prepared by incipient wetness impregnation under vacuum method in a fixed-bed reactor for light olefins production via FT synthesis.…”

Effect of calcination conditions on the structure and catalytic performance of MgO supported Fe–Co–Mn catalyst for CO hydrogenation

“…After formation of catalyst precursor, further heat treatment is required to transform the catalyst precursor into the useful catalyst shape. In our previous works (Mirzaei et al, 2007;Mirzaei et al, 2008;Mirzaei et al, 2011) we demonstrated the importance of calcination conditions with respect to the catalyst activity for the hydrogenation of CO using mixed cobalt cerium oxides catalysts. The obtained results of these investigations have shown that the changes in the calcination conditions of the precipitates obtained by co-precipitation leads to phase changes toward forms that are more thermodynamically stable.…”