Abstract:
THE CATALYTIC COMPOSITION COMPRISES A PHYSICAL PARTICULATE MIXTURE OF A COMPONENT (A) AND A COMPONENT (B). COMPONENT (A) COMPRISES AN AMORPHOUS SILICA-ALUMINA SUPPORT HAVING DISPERSED UNIDORMLY THROUGH THE MATRIX THEREOF AN ULTRASTABLE, LARGE-PORE CRYSTALLINE ALUMINOSILICATE MATERIAL AND HAVING IMPREGNATED THEREON A METAL OF GROUP VI-A, PREFERABLY MOLYBDENUM, AND A METAL OF GROUP VIII, PREFERABLY COBALT; COMPONENT (B) COMPRISES Y-TYPE MOLECULAR SIEVES WHICH HAVE BEEN CATIONEXCHANGED WITH A GROUP VIII METAL, PREFERABLY NICKEL. THE PROCESSES ARE HYDROCARBON-CONVERSION PROCESS EMPLOYING THIS CATALYTIC COMPOSITION, PARTICULARLY, A PROCESS FOR HYDROCARCKING NITROGEN-CONTAMINATED PETROLEUM HYDROCARBON FLUIDS.
Abstract:
THE CATALYST COMPRISES A GROUP VIII NOBLE METAL, MORDENITE HAVING A SILLICA-TO-AMUMINA RATIO OF AT LEAST 19:1, AND AN ADSORBENT REFRACTORY INORGANIC OXIDE. THE PREFERRED GROUP VIII NOBLE METAL IS PLATINUM; THE PREFERRED REFRACTORY INORGANIC OXIDE IS A CATALYTICALLY ACTIVE ALUMINA. THE MORDENITE HAS A SILLICA-TO-ALUMINA RATIO OF LESS THAN 45:1.
THE PROCESSES IN WHICH THE CATALYST IS EMPLOYED ARE PROCESSES FOR REFORMING OF PETROLEUM HYDROCARBON FEEDSTOCKS.
Abstract:
THE CATALYST COMPRISES GROUP VI-A AND GROUP VIII METAL AND/OR THEIR COMPOUNDS AND AN ACIDIC SUPPORT COMPRISING LARGE-PORE CRYSTALLINE ALUMINOSILICATE MATERIAL AND A POROUS SUPPORT MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALUMINA, ALUMINUM PHOSPHATE, AND SILICA. PREFERRED GROP VI-A METALS ARE MOLYBDENUM AND TUNGSTEN. PREFERRED GROUP III METALS ARE COBALT AND NICKEL. THE PREFERRED LAREGE-PORE CRYSTALLINE ALUMINOSILICATE MATERIAL IS ULTRASTABLE, LARGE-PORE CRYSTALLINE ALUMINOSILICATE MATERIAL. THE PROCESS ARE HYDROCARBON CONVERSION PROCESSES, A TYPICIAL EXAMPLE OF WHCH IS A HYDROCRACKING PROCESS. THE HYDROCRACKING PROCESS COMPRISES CONTACTING IN A HYDROCRACKING REACTION ZONE UNDER HYDROCRACKING CONDITIONS AND IN THE PRESENCE OF HYDROGEN PETROLEUM HYDROCARBON FRACTIONS WITH THE CATALYST OF THE PRESENT INVENTION.
Abstract:
DISCLOSED IS A HYDROCRACKING CATALYST CONSISTING ESSENTIALLY OF AN ULTRASTABLE, LARGE PORE, CRYSTALLINE ALUMINOSILICATE MATERIAL CONTAINING LESS THAN ABOUT 1% ALKALI METAL AND HAVING DEPOSITED THEREON A HYDROGENATION COMPONENT SELECTED FROM THE METALS, OXIDES, OR SULFIDES OF THE GROUP VIII ELEMENTS OF THE PERIODIC TABLE. THE CATALYST MAY ADDITIONALLY CONTAIN A METAL, OXIDE OR SULFIDE OF A GROUP VI-B ELEMENT.
Abstract:
THE METHOD COMPRISES INCORPORATING SILICA INTO THE CATALYST AFTER THE CATALYST HAS BEEN FORMED INTO DESIRED SHAPES TO FORM A SILICA-IMPREGNATED CATALYST, DRYING AND CALCINING IN AIR THE SILICA-IMPREGNATED CATALYST. THE SILICA IS IMPREGNATED THEREIN TO PROVIDE AN AMOUNT BETWEEN ABOUT 1 WEIGHT PERCENT AND ABOUT 20 WEIGHT PERCENT, BASED UPON THE WEIGHT OF THE CATALYST.