Zrfe intermetallides for fischer-tropsch synthesis : Pure and encapsulated into alumina-containing matrices

Performance of the bulk hydrogenated ZrFe intermetallides both pure and encapsulated into alumina-containing matrix (Al 2 O 3 /Al, Al 2 O 3 ) was studied in catalysis of Fischer-Tropsch synthesis. Their structural, textural and surface properties were characterized by combination of such methods as XRD, SEM, TEM, nitrogen adsorption-desorption isotherms and XPS, and impact of these properties on catalytic activity and selectivity was analyzed. The highest activity per the surface Fe atom (∼5.10 -19 CH x /at.Fe.h) was obtained for pure active component, while the highest activity per the unit of volume (∼168 g C 5+ /l.h) was revealed for a composite catalyst at 300°C, 3 MPa and space velocity ∼7000 h -1 .