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

Abstract 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 .