Abstract:
The catalyst comprises a hydrogenation component, a small amount of rhenium, and a small amount of gallium on a solid catalytic support comprising a porous refractory inorganic oxide. The rhenium and the gallium may be present either in the elemental form or as compounds. The preferred hydrogenation component is a Group VIII noble metal and the preferred porous refractory inorganic oxide is a catalytically active alumina. The reforming process comprises contacting a petroleum hydrocarbon stream in a reforming zone under reforming conditions and in the presence of hydrogen with the above-described catalyst. In one embodiment, the process comprises contacting a partially-reformed hydrocarbon stream in a reforming zone under reforming conditions and in the presence of hydrogen with the above catalyst. In another embodiment, the process comprises contacting a naphtha in a reforming zone under reforming conditions and in the presence of hydrogen with the above catalyst. In a third embodiment, the process comprises contacting the petroleum hydrocarbon stream in a first reforming zone under reforming conditions and in the presence of hydrogen with a first reforming catalyst to produce a first reformate and subsequently contacting the first reformate in a second reforming zone under reforming conditions and in the presence of hydrogen with a second reforming catalyst, said second reforming catalyst being the catalyst described in the preceding paragraph.
Abstract:
The process comprises contacting the high-boiling petroleum hydrocarbon feedstock under hydrocarbon conversion conditions and in the presence of hydrogen with a catalyst comprising a member selected from the group consisting of (1) uranium and a second hydrogenation metal, (2) their oxides, (3) their sulfides, and (4) mixtures thereof supported on a porous refractory inorganic oxide having an average pore diameter of about 100 Angstroms to about 300 Angstroms and a surface area in excess of 200 square meters per gram. The preferred second hydrogenation metal is molybdenum and the preferred porous refractory inorganic oxide is alumina.
Abstract:
THE PROCESS COMPRISES CONTACTING IN A REACTION ZONE A PETROLEUM HYDROCARBON FRACTION WITH A CATALYTIC COMPOSITION UNDER SUITABLE DISPROPORTIONATION CONDITIONS, SAID CATALYTIC COMPOSITION COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF (1) A METAL OF GROUP VI-B OF THE PERIODIC TABLE OF ELEMENTS, 2() A METAL OF GROUP VIII OF THE PERIODIC TABLE, (3) THE OXIDE OF A METAL OF GROUP VI-B, (4) THE SULFIDE OF A METAL OF GROUP VI-B, (5) THE OXIDE OF A METAL OF GROUP VIII, (6) THE SULFIDE OF A METAL OF GROUP VIII, AND (7) MIXTURES THEREOF DEPOSITIONED UPON A SOLID ACIDIC CRACKING SUPPORT, WHICH SUP/ PORT COMPRISES AN ULTRASTABLE, LARGE-PORE CRYSTALLINE ALUMINOSILICATE MATERIAL AND A REFACTORY INORGANIC OXIDE. THE PREFERRED METAL OF GROUP VI-B IS MOLYBDENUM AND THE PREFERRED METAL OF GROUP VIII IS COBALT. THE CATALYST IS SUBJECTED TO A SULFUR-PROVIDING COMPOUND TO INHIBIT DEMETHANATION.
Abstract:
A CYCLIC FLUIDIZED CATALYTIC CRACKING PROCESS IS OPERATED WITH A CATALYST COMPRISING MOLECULAR SIEVE IN A SILICAALUMINA MATRIX, IMPREGNATED WITH ONE OR MORE GROUP IIA METAL OXIDES, TO PROVIDE FROM ABOUT 0.25 TO ABOUT 5.0 WT. PERCENT OF GROUP IIA METAL OR METALS. THE EMISSION OF SULFUR OXIDES IN THE REGENERATOR STACK GASES IS DECREASED BY AT LEAST ABOUT 50%.
Abstract:
1. A PROCESS FOR THE PRODUCTION OF A COLORLESS MINERAL OIL, WHICH PROCESS COMPRISES CONTACTING A DEWAXED MINERAL LUBRICATING OIL DISTILLATE OR A DEWAXED AND SOLVENTEXTRACTED MINERAL LUBRICATING OIL DISTILLATE OF REDUCED AROMATIC HYDROCARBON CONTENT IN A FIRST REACTION ZONE WITH A SULFACTIVE HYDROGENATION CATALYST IN THE PRESENCE OF HYDROGEN AND UNDER HYDROGENATION AN DESULFURIZATION CONDITIONS TO PRODUCE A HYDROGENATED AND DESULFURIZED PRODUCT; CONTACTING SAID HYDROGENATED AND DESULFURIZED PRODUCT IN A SECOND REACTION ZONE WITH A SECOND CATALYST COMPRISING A GROUP VIII NOBLE METAL EPOSITED UPON A LARGE-PORE-DIAMETER ALUMINA HAVING A SURFACE AREA OF ABOUT 150 SQUARE METERS PER GRAM TO ABOUT 500 SQUARE METERS PER GRAM AND AN AVERAGE PORE DIAMTER OF ABOUT 100 A. TO BOUT 200 A. IN THE PRESENCE OF HYROGEN AND AT A TEMPERATURE OF AT LEAST 450*F. A LHSV OF ABOUT 0.25 TO ABOUT 1 VOLUME OF HYDROCARBON PER HOUR PER VOLUME OF CATALYST, A HYDROGEN ADDITION RATE OF ABOUT 1,500 SCFB TO ABIUT 7,00 SCFB, AND A HYDROGEN PARTIAL PRESSURE OF AT LEAST 500 P.S.I.G. SAID TEMPERATURE IN SAID SECOND REACTION ZONE HAVING A MAXIMUM VALUE OF 500*F. AND RECOVERING SAID COLORLESS MINERAL OIL FROM THE EFFLUENT FROM SAID SECOND REACTION ZONE.
Abstract:
THE CATALYST COMPRISES A HYDROGENATION COMPONENT COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF A METAL OF GROUP VI-A, COMPOUNDS OF A METAL OF GROUP VI-A, AND MIXTURES THEREOF SUPPORTED ON A CO-CATALYTIC SOLID SUPPORT COMPRISING MORDENITE AND A POROUS REFRACTORY INORGANIC OXIDE. THE HYDROGENATION COMPONENT MAY BE CHARACTERIZED FURTHER BY A MEMBER SELECTED FROM THE GROUP CONSISTING OF RHENIUM, COMPOUNDS OF RHENIUM, A NON-NOBLE METAL OF GROUP VIII, COMPOUNDS OF A NON-NOBLE METAL OF GROUP VIII, AND MIXTURES THEREOF. THE PREFERRED GROUP VI-A METAL IS MOLYBDENUM. A REFORMING PROCESS COMPRISES CONTACTING A PETROLEUM HYDROCARBON STREAM IN A REFORMING ZONE UNDER REFORMING CONDITIONS AND IN THE PRESENCE OF HYDROGEN WITH THE ABOVE CATALYST. IN ONE EMBODIMENT. THE PROCESS COMPRISES CONTACTING A PARTIALLY-REFORMED HYDROCARBON STREAM IN A REFORMING ZONE UNDER REFORMING CONDITIONS AND IN THE PRESENCE OF HYDROGEN WITH THE ABOVE CATALYST. IN ANOTHER EMBODIEMENT, THE PROCESS COMPRISES CONTACTING THE PETROLEUM HYDROCARBON STREAM IN A FIRST REFORMING ZONE UNDER REFORMING CONDITIONS AND IN THE PRESENCE OF HYDROGEN WITH A CATALYST COMPRISING A PLATINUM GROUP METAL AND A HALIDE ON ALUMINA TO PRODCE A FIRST REFORMATE AND SUBSEQUENTLY CONTACTING THE FIRST REFORMATE IN A SECOND REFORMING ZONE UNDER REFORMING CONDITIONS AND IN THE PRESENCE OF HYDROGEN WITH THE AVOVE CATALYST.
Abstract:
There is provided a process for reforming a petroleum hydrocarbon stream, which process comprises contacting said hydrocarbon stream in a first reforming zone under reforming conditions and in the presence of hydrogen with a first reforming catalyst to produce a first reformate and subsequently contacting said first reformate in a second reforming zone under reforming conditions and in the presence of hydrogen with a second catalyst comprising a hydrogenation component and a small amount of gallium on a solid catalytic support comprising a porous refractory inorganic oxide. The first reforming catalyst may be any suitable reforming catalyst in the art.