| abstract |
THE PRESENT INVENTION RELATES TO A CAPTURE MASS COMPRISING AN ESSENTIALLY ALUMINA-BASED EXTRUDED SUPPORT, AND CONSTITUTED BY A PLURALITY OF JUXTAPOSED AGGLOMERATES, OPTIONALLY AT LEAST ONE OXIDE OR A SULPHIDE OF A METAL CONSTITUTED BY COPPER, MOLYBDENUM, TUNGSTEN, IRON, NICKEL OR COBALT IN WHICH THE SUM S OF METALS FROM THE GROUP CONSTITUTED BY COPPER, MOLYBDENUM, TUNGSTEN, IRON, NICKEL AND COBALT IS IN THE RANGE 0 TO 70BY WEIGHT, AND CHARACTERIZED IN THAT EACH OF THESE AGGLOMERATES IS PRESENT PARTLY IN THE FORM OF PACKS OF FLAKES AND PARTLY IN THE FORM OF NEEDLES BEING UNIFORMLY DISPERSED BOTH AROUND THE PACKS OF FLAKES AND BETWEEN THE FLAKES.THE INVENTION ALSO RELATES TO ITS USE IN A FIXED BED REACTOR TO ELIMINATE HEAVY METALS FROM A HYDROCARBON-CONTAINING FEED. |