A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Catalytic Behavior and In Situ X‐Ray Diffraction of Promoted Iron Catalysts for Fischer‐Tropsch Synthesis
The effects of structural promoters (ZnO, SiO2, and Al2O3) on the phase transformation during reduction and Fischer‐Tropsch synthesis (FTS) of a FeCuK catalyst were investigated by in situ X‐ray diffraction and the FTS catalytic performance was studied in a fixed‐bed reactor. The reduction follows the path of Fe2O3/K2Fe22O34 → Fe3O4 → α‐Fe. The addition of ZnO, SiO2, and Al2O3 delayed and prolonged the reduction. The iron carbides formed under reaction conditions were χ‐Fe5C2 and ε‐Fe2C. The presence of ZnO, SiO2, and Al2O3 favored the formation of χ‐Fe5C2. ε‐Fe2C is a more active phase. Besides, ε‐Fe2C seems to favor the formation of CO2 and C5+ and χ‐Fe5C2 benefits CH4 and C2–C4 products.
Catalytic Behavior and In Situ X‐Ray Diffraction of Promoted Iron Catalysts for Fischer‐Tropsch Synthesis
The effects of structural promoters (ZnO, SiO2, and Al2O3) on the phase transformation during reduction and Fischer‐Tropsch synthesis (FTS) of a FeCuK catalyst were investigated by in situ X‐ray diffraction and the FTS catalytic performance was studied in a fixed‐bed reactor. The reduction follows the path of Fe2O3/K2Fe22O34 → Fe3O4 → α‐Fe. The addition of ZnO, SiO2, and Al2O3 delayed and prolonged the reduction. The iron carbides formed under reaction conditions were χ‐Fe5C2 and ε‐Fe2C. The presence of ZnO, SiO2, and Al2O3 favored the formation of χ‐Fe5C2. ε‐Fe2C is a more active phase. Besides, ε‐Fe2C seems to favor the formation of CO2 and C5+ and χ‐Fe5C2 benefits CH4 and C2–C4 products.
Catalytic Behavior and In Situ X‐Ray Diffraction of Promoted Iron Catalysts for Fischer‐Tropsch Synthesis
Wen, Ruoxi (author) / Thiessen, Johannes (author) / Jess, Andreas (author)
Chemie Ingenieur Technik ; 94 ; 1756-1764
2022-11-01
9 pages
Article (Journal)
Electronic Resource
English
Fischer-tropsch iron catalysts supported on fibrous carbon material
| Springer Verlag | 2011
| British Library Online Contents | 2015