Fischer-Tropsch catalyst production

摘要

DISPERSED ACTIVE METAL CATALYST FOR HYDROGENATION REACTIONS IS PRODUCED BY TREATING A SUBSTANTIALLY CATALYTICALLY INACTIVE METAL PARTICULATE WITH A SOLUTION CAPABLE OF OXIDIZING THE METAL PARTICULATE AND COMPRISING OF AT LEAST ONE COMPOUND OF HYDROGENATION CATALYST METAL THEREBY FORMING A LAYER OF AT LEAST ONE OF HYDROXIDES AND OXIDES THEREON. THE METAL PARTICULATE IS ACTIVATED BY TREATMENT WITH A HYDROGEN-CONTAINING GAS AT ELEVATED TEMPERATURES TO FORM A POROUS LAYER OF DISPERSED ACTIVE METAL CATALYST. PREFERABLY, THE TREATED METAL PARTICULATE IS DRIED PRIOR TO ACTIVATION, AND ALSO PREFERABLY CALCINED IN AN OXIDANT-CONTAINING ATMOSTPHERE PRIOR TO ACTIVATION. THE TREATMENT SOLUTION MAY ADVANTAGEOUSLY CONTAIN A COMPOUND OF AT LEAST ONE PROMOTER METAL FOR THE ADDED CATALYST METAL. THE POROSITY OF THE LAYER PROVIDES ENCHANCED CATALYST ACTIVITY AS WELL AS IMPROVED METHANE SELECTIVELY IN THE FISCHER-TROPSCH PROCES.