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 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:
Apparatus for the pyrolysis of solids containing carbonaceous materials including a cylindrical substantially horizontal pyrolysis vessel together with solids input and removal means communicating with the vessel. Solids are conveyed through the pyrolysis vessel by means of an auger-type conveyor. Heating means are provided for heating solids between the input and removal means. Gas input and withdrawal means permit the input and removal of gas from the pyrolysis vessel, and gas delivery means are provided for delivering gas to subsequent processing equipment. The gas is recycled back to the gas input means via gas recycle means. Stripping gas delivery means are also provided to deliver a stripping gas to the pyrolysis vessel downstream of the gas withdrawal means.
Abstract:
ALKYL AROMATIC HYDROCARBONS ARE ISOMERIZED AND DISPROPORTIONATED BY CONTACTING THEM AT ELEVATED TEMPERATURES IN THE PRESENCE OF HYDROGEN GAS WITH A CATALYST COMPRISING A SILICA-ALUMINA CRACKING BASE IMPREGNATED WITH A HYDROGENATION COMPONENT, A SECOND METAL FROM GROUP V-A OF THE PERIODIC TABLE, AND A HALOGEN. THE PREFERRED HYDROGENATION COMPONENT IS NICKEL, THE PREFERRED GROUP V-A METAL IS ARSENIC, AND THE PREFERRED HALOGEN IS FLUORINE.
Abstract:
ALKYL BENZENES AND/OR ALKYL NAPHTHALENES ARE DEALKYLATED BY CONTACTING A FEED STOCK RICH IN THESE COMPOUNDS AT ELEVATED TEMPERATURES AND UNDER HYDROGEN PRESSURE WITH A CATALYST COMPRISING A SILICA-ALUMINA CRACKING BASE IMPREDMATED WITH A HYDROGENATION COMPONENT, A SECOND METAL FROM GROUP V-A OF THE PERIODIC TABLE, AND A HALOGEN. THE PREFERRED HYDROGENATION COMPONENT IS NICKEL, THE PREFERRED GROUP V-A METAL IS ARSENIC, AND THE PREFERRED HALOGEN IS FLUORINE. IN THE RECOVERED PRODUCT, AT LEAST A PORTION OF THE COMPOUNDS HAVE A REDUCED NUMBER OF ALKYL GROUPS