Abstract: A catalyst for the hydrotreatment of heavy crudes and their residues, and a method of preparing same, is disclosed, which has significant simultaneous hydrodemetallizing and hydrodesulfurizing activity. The catalyst is prepared by successively impregnating an extruded refractory support with a Group VIb and a Group VIII metal, calcining the pellet thus produced, and presulfurizing same. Pore volume of the catalyst ranges between 0.50 and 1.2 ml/g, total surface area ranges between 120 and 400 m.sup.2 /g, at least 60% of said pore volume consists of pores having diameters greater than 100 .ANG., and X-ray photoelectron spectroscopy signal band strength ratios are as follows: I(Me VIb)/I(refractory metal) is between 5 and 8, and I(Me VIII)/I(refractory metal) is between 1 and 5.

Abstract: The present invention relates to new catalysts for the hydrotreatment of hydrocarbons, their preparation and their application.The catalyst for the hydrotreatment of hydrocarbons, according to the present invention, incorporates a refractory inorganic support combined with an active phase comprising a layer of uranium oxide and at least one oxide of a Group VIII metal. The active phase comprises a layer of uranium oxide fixed with a homogenous distribution on the said support through the intermediacy of direct --O-- bonds resulting from an impregnation of the support with the aid of an ethanolic solution of uranyl acetylacetonate.

Abstract: A catalyst composition is prepared by dissolving a suitable vanadium and oxygen containing compound, a suitable nickel (II) compound and ammonia in water, mixing this solution with an alumina containing support material, and calcining this mixture. This catalyst composition is used primarily for hydrotreating of hydrocarbon feed stream, which contain nickel, vanadium and sulfur impurities, particularly heavy oils.

Abstract: A process for the low temperature oxydehydrogenation of ethane to ethylene uses a calcined oxide catalyst containing Mo, V, Nb, Sb, and at least one metal from a given group of metals.

Abstract: A coal liquefaction hydrotreating catalyst composition comprising particles of Component A consisting essentially of at least one Group VIB metal component supported on refractory inorganic oxide and particles of Component B consisting essentially of either cobalt and/or nickel component supported on a refractory inorganic oxide.

Abstract: A catalyst comprising a metallic carrier having a catalytically active metal-containing surface layer, the catalytic metal being other than a noble metal, whereby the catalytically active surface layer is formed out of a homogeneous metallic carrier by oxidizing in an oxidizing gas such as air and subsequently reducing with hydrogen the surface of the metallic carrier at a temperature at which the active metal is substantially not sintered, characterized in that the carrier is a web or felt of fibers with a diameter between 4 and 100 microns.

Abstract: Antimony-containing metal oxide catalysts are produced or activated by dry blending (a) a catalyst or catalyst precursor composed of an antimony-containing metal oxides composition containing antimony and at least one element selected from the group consisting of iron, cobalt, nickel, manganese, cerium, uranium, tin, titanium, and copper, and (b) elemental antimony or an antimony compound, and contacting the components (a) and (b) with each other at about 300.degree. C. to about 1000.degree. C. in a non-reducing gas atmosphere for a period sufficient for the elemental antimony or antimony compound (b) to deposit on the catalyst or catalyst precursor (a).

Abstract: A catalyst for use in the hydrotreatment of hydrocarbons comprises a carrier and at least one catalytic metal selected from vanadium, molybdenum, tungsten, nickel, cobalt and/or iron; this catalyst is in the form of a plurality of juxtaposed agglomerates of acicular platelets, oriented radially to each other. It is prepared from agglomerates of activated alumina subjected to reaction with an acid and a compound providing an anion able to combine with aluminum ions in solution.

Abstract: A catalyst for producing hydrogen by reacting in the gaseous phase a hydrocarbon, hydrocarbon derivative or carbon monoxide with steam and/or if appropriate, carbon dioxide is in the form of hollow pieces each having walls 0.5 to 2 mm thick and comprising a primary support of low pore volume and a secondary support of relatively high surface area. The hollow pieces preferably are partitioned rings and are especially useful in hydrocarbon steam reforming because they can afford high catalytic activity at relatively low active metal content, high mechanical strength and low pressure drop.

Abstract: Surface-metallated aluminas and silicas are species many of whose physical properties, such as surface and pore volume, are unchanged but which exhibit superior hydrothermal stability. Suitable for use as catalytic supports, these materials can be simply prepared by treating the alumina or silica with a tetrahalide of a metal, such as titanium or zirconium, removing the unreacted tetrahalide, and calcining the resulting material in a moist atmosphere.

Abstract: A supported catalyst is made by preparing a dispersion, contacting the dispersion with a substrate to produce a coating thereon, and firing and, if necessary, reducing to convert the dispersion to a catalytically active coating on the substrate. The catalyst may be useful in the catalysis of reactions for producing methane.The dispersion is made by co-hydrolysis to give an intimate mixture of hydrolysis products (e.g. hydroxides of Ni and Al) convertible by calcining and, if necessary, reduction to produce the catalytically active coating in the form of one or more catalytically active components (e.g. Ni) and one or more ceramic oxides (e.g. Al.sub.2 O.sub.3). Preferably, co-hydrolysis if effected by an agent such as urea which gives rise to no by-products in the coating.

Abstract: The hydroconversion of a heavy hydrocarbon charge containing asphaltenes and metal, sulfur and nitrogen impurities is performed in the presence of a catalyst comprising:(a) soot particles of the cenosphere type(b) a compound of a metal selected from the groups V B, VI B, VII B and VIII of the periodic classification.

Abstract: Selective reductions of fatty materials occur using a catalyst consisting of essentially of zerovalent nickel dispersed on a support which shows strong metal, support interaction. A particularly desirable catalyst is one where the nickel is dispersed on titania which is subsequently activated in hydrogen at a temperature above about 325.degree. C. The catalyst is sufficiently selective so as to permit continuous reduction of fatty material using a fixed bed of catalyst.

Abstract: A catalytic composite is disclosed which catalyst comprises a silica-alumina carrier material, a nickel component and a vanadium component, and which catalyst is useful for the conversion of hydrocarbons. A preferred method of preparation comprises the incorporation of the vanadium component from an alcoholic solution of a vanadium compound.

Abstract: For the catalytic reaction of 2-methylpyrazine with ammonia and oxygen to form 2-cyanopyrazine there are used compounds of the elements antimony, vanadium, and oxygen and at least one of the elements iron, copper, titanium, cobalt, manganese, and nickel, whereby the atomic ratio of antimony to vanadium is greater than 1 and which contain besides these compounds a lattice layer silicate and a highly dispersed silica. These catalysts are very selective and result in high yields and high space-time-yields.

Abstract: The herein-proposed catalyst for dehydrogenation oxygen-containing derivatives of the cyclohexane series having the following general formula ##STR1## where R.sub.1 is either hydrogen or alkyl C.sub.1 -C.sub.4,R.sub.2 and R.sub.3 are radicals having either the same or different values --H, --OH, .dbd.O, provided that R.sub.2 and R.sub.3 are not hydrogen atoms both at a time,R.sub.1, R.sub.2, R.sub.3 being linked to different carbon atoms of the ring to form the corresponding cyclic ketones and/or phenols, comprises the following components (wt. %):nickel--15 to 55tin--0.2 to 1.95inert carrier--84.8 to 43.05,while the atomic ratio of nickel and tin lies within 15:1 and 410:1, respectively, and may contain additionally an alkali salt of a mineral acid in an amount of 0.01 to 1.0 wt. %.

Abstract: An improved catalyst is described which comprises a normally cylindrical refractory support having gas passages communicating from end to end and oriented parallel to its axis and having gas passages in the shape of segments of circles (pie-shaped), square, hexagonal, circular, oval or sinusoidal. The exterior and interior surfaces are coated with catalytic compositions. The length of the refractory support is significantly less than the diameter. Further, there is a definite ratio of height to effective internal diameter (H:ID) of each of the gas passages. These catalysts are especially effective for endothermal reactions because both the internal and external surfaces of the support are coated with catalysts and are more efficiently heated. This is especially true for the internal surfaces of the support (i.e., the walls of the axially oriented gas passages) which heretofore have been shielded from the infra-red rays radiating from the tubes of the catalytic reactor.