Abstract: Hydrocarbons are converted with a catalyst comprising an alumina-zeolite support, a Group VIII metallic component and a Group VI-B metallic component. Key features of the process are the commingling of alumina and zeolite before the rare earth exchange of the faujasite and the extremely low sodium concentration of the finished catalyst.

Abstract: Disclosed is a hydrocracking process utilizing a catalyst comprising a Ziegler alumina-zeolite support, a rare earth exchange metal component and a platinum group metal component.

Abstract: A process for hydrotreating (hydroprocessing) hydrocarbons and mixtures of hydrocarbons utilizing a catalytic composite comprising an alumina-zeolite support, a rare earth exchange metal component, at least one metal component from Group VIB or Group VIII and from about 0.1 to about 5 weight percent of at least one component from Group IIA based on the weight of the finished catalyst in which process there is effected a chemical consumption of hydrogen. Hydrocarbon hydroprocesses are hydrocracking, the hydrogenation of aromatic nuclei, the ring-opening of cyclic hydrocarbons, desulfurization, denitrification, hydrogenation, etc.

Abstract: Disclosed is a hydrocracking catalyst comprising an alumina-zeolite support, a rare earth exchange metal component, at least one metal component selected from Group VIB or Group VIII and from about 1 to about 3 wt. % sulfate based on the weight of the finished catalyst.

Abstract: Disclosed is a hydrocracking catalyst comprising an alumina-zeolite support, a rare earth exchange metal component, at least one metal component selected from Group VIB or Group VIII and from about 0.1 to about 5 wt. % of at least one component selected from Group IIA based on the weight of the finished catalyst.

Abstract: A process for the selective production of middle distillate hydrocarbons from heavier hydrocarbon feed stocks utilizing a hydrocracking catalyst comprising an alumina-zeolite support, a rare earth exchange metal component and at least one metal component selected from Group VIB or Group VIII and having a nominal particle diameter of less than 0.04 inches.

Abstract: Disclosed is a hydrocracking catalyst comprising an alumina-zeolite support, a rare earth exchange metal component, at least one metal component selected from Group VIB or Group VIII and from about 0.9 to about 5 wt. % of at least one component selected from Group IA based on the weight of the finished catalyst.

Abstract: A prismatic plate is mounted with its flat face exposed to the sun on a reflector panel for use in a solar energy collection system. The plate includes a plurality of triangular prisms with parallel longitudinal axes shaped to provide total internal reflection of incident light rays. Each prism has a cross section forming a right-angled isosceles triangle with the two equal-length, rear faces of the prism oriented at 45 degrees relative to the front face of the plate. The base of each prism forms or is parallel to a front plate surface which receives incident solar light rays. The rays are transmitted through the plate cross section without refraction in the plane of the cross section to be reflected from the two rear faces and back out the front face toward a solar receiver. The prism material has an index of refraction equal to or greater than the square root of two so that there is total internal reflection from the prism faces.

Abstract: Disclosed is a hydrocracking catalyst comprising an alumina-zeolite support, a rare earth exchange metal component, at least one metal component selected from Group VIB or Group VIII and from about 0.1 to about 5 wt. % of at least one component selected from Group IIA based on the weight of the finished catalyst.

Abstract: A desulfurization catalyst which demonstrates superior desulfurization activity and which contains an inorganic oxide carrier material, a Group IVB metal component and a Group VIII metal component. The catalyst is prepared by (a) extruding at least 10% of the Group VIII metal component with the inorganic oxide carrier material, and (b) impregnating the resulting extrudate with a sufficient quantity of Group VIB and Group VIII metal components to yield a finished catalyst containing the requisite metallic component content.

Abstract: A hydrorefining process is disclosed. A petroleum hydrocarbon fraction is treated at hydrorefining conditions in contact with a catalyst comprising a Group VIII metal and a Group VIB metal component impregnated on a refractory inorganic oxide. A more active catalyst results from the use of an impregnating solution comprising an anionic complex of a Group VIB and a Group VIII metal.

Abstract: A curved prismatic, Fresnel-type lens primarily used for concentrating sunlight in a solar energy collector. The lens comprises a substantially smooth, convex outer surface and a plurality of prisms arranged side-by-side along a curve on the inner surface to direct incoming light to a common area. Each of the individual prisms has a front and back face joined by a bottom face. The front and back faces of the prisms are oriented such that the angle of incidence of the incoming light with the front face is equal to the angle of incidence of the outgoing light with the back face. Further, each of the prisms is arranged along the curve such that they do not obstruct light passing through any adjacent prism. The bottom face of each prism is over-extended beyond the path of the light passing through the prism to prevent loss of light due to blockage by the bottom face or the rounded point between the back face and bottom face.

Abstract: A desulfurization catalyst which demonstrates superior desulfurization activity and which contains an inorganic oxide carrier material, a Group VIB metal component and a Group VIII metal component. The catalyst is prepared by (a) extruding at least 10% of the Group VIII metal component with the inorganic oxide carrier material, and (b) impregnating the resulting extrudate with a sufficient quantity of Group VIB and Group VIII metal components to yield a finished catalyst containing the requisite metallic component content.

Abstract: An improved method of preparing a catalyst comprising a Group VIII metal and a Group VIB metal component impregnated on a refractory inorganic oxide support or carrier material, said catalyst being especially useful in the hydrorefining of petroleum hydrocarbon fractions and particularly effective for the conversion of sulfurous components contained therein. A more active catalyst results from the use of an impregnating solution comprising an anionic complex of a Group VIB and a Group VIII metal.

Abstract: A method of manufacturing a catalytic composite of a Group VIII metal, a Group VIB metal and a refractory inorganic oxide-boron phosphate carrier material. A refractory inorganic oxide hydrogel is perecipitated from an aqueous solution, impregnated with an aqueous solution of boric and phosphoric acids, admixed with preformed, refractory inorganic oxide-boron phosphate fines, and the mixture recovered by filtration. The mixture is then dried, and further impregnated with a metal of Group VIII and a metal of Group VIB. The resulting composite is then dried and calcined.

Abstract: An improved method of preparing a catalyst comprising a Group VI-B and a Group VIII metal impregnated on a refractory inorganic oxide carrier material, said catalyst being particularly useful in the hydrorefining of residual oils. The carrier material is further impregnated with a nitrogen-containing organic compound, the compound being subsequently thermally decomposed to deposit nitrogen on the carrier material. The nitrogen-containing compound is characterized by a basic dissociation constant of less than about 1 .times. 10.sup..sup.-13 at 25.degree. C.

Abstract: An improved method of preparing a catalyst comprising a Group VIII metal and a Group VIB metal impregnated on a refractory inorganic oxide support or carrier material, said catalyst being especially useful in the hydrorefining of residual oils, and particularly effective for the conversion of sulfurous components contained therein. A more active catalyst results from the order of metals impregnation on the support or carrier material, and from the nature of the impregnating solution.

Abstract: An array of linear lenses is used as a combination roof-skylight-solar collector. The lenses are oriented at a given latitude to face the most remote of the earth's poles inclined by the local latitude angle. Moving absorbers are used to receive the sunlight at the focal spot of each lens. The absorbers move back and forth during the day as the sun's position changes, causing the focal spots to move.