Abstract: Provided are a hydrogenation catalyst for hydrocarbon oil, having markedly improved desulfurization activity, denitrogenation activity, and dearomatization activity; a carrier for the catalyst and its production; and a method of hydrogenation of hydrocarbon oil with the catalyst.

Abstract: Provided are a hydrogenation catalyst for hydrocarbon oil, having markedly improved desulfurization activity, denitrogenation activity, and dearomatization activity; a carrier for the catalyst and its production; and a method of hydrogenation of hydrocarbon oil with the catalyst.

Abstract: The invention relates to a method of heavy oil hydrogenation, precisely to a method of heavy oil hydrogenation for which a part of the catalyst to be used is a regenerated catalyst, and concretely to a method of heavy oil denitrification and to a method of heavy of desulfurization. It is characterized in that heavy oil is passed through a layer of a regenerated catalyst or a layer containing a regenerated catalyst. With the specific catalyst disposition employed in the method, heavy oil can be well hydrogenated under the same conditions as those for ordinary heavy oil hydrogenation with fresh catalysts. The method is significantly effective for efficient utilization of used catalysts.

Abstract: The present invention relates to a catalyst for hydrogenation treatment in which Mo—Ni, Mo—Co or the like is supported on an alumina-type carrier, and a method for hydrogenation treatment of heavy oil using the same. More specifically, it relates to the catalyst showing a specific X-ray diffraction pattern, and a method for hydrogenation treatment of heavy oil using the same.

Abstract: Disclosed herein is a process for efficiently and stably producing high-quality kerosene and gas oil from crude oil or crude oil from which naphtha fraction is removed through the hydrotreatment of the crude oil by using a specific hydrotreatment catalyst; a process capable of prolonging the service life of the catalyst; a process capable of extending the continuous operation period of the process equipment; a process simplifying a petroleum refinery equipment; and the like. There are used, as hydrotreatment catalysts in the hydrotreatment of a hydrocarbon oil, the metals each belonging to any of the groups 6, 8, 9 and 10 of the Periodic Table which metals are supported on a carrier composed of alumina/boria, metal-containing aluminosilicate, alumina/an alkaline earth metal compound, alumina/phosphorus, alumina/titania or alumina/zirconia.

Abstract: By mixing an alumina gel suspension prepared by dispersing alumina gel in pure water in an alumina concentration of 0.1 to 12% by weight, with an aqueous metal salt solution wherein a compound of a Group VIA metal and a compound of a Group VIII metal are dissolved, and then evaporating water to dry while stirring the mixture, the metal component can be loaded effectively on the alumina gel to a sufficiently high loading quantity, and active catalyst compositions useful as catalysts being superior in functions, such as activities, to the conventional hydrogenation catalysts are easily obtainable. Sufficiently desulfurized hydrocarbons are obtainable by allowing the catalyst compositions to contact sulfur-containing hydrocarbons in the presence of hydrogen.

Abstract: A hydrocracking catalyst for heavy hydrocarbon oils comprising a metallic element of the VIb Group and a metallic element of the VIII Group supported on a carrier containing a novel faujasite-type aluminosilicate which absorbs an infrared in a frequency region of 3740.+-.10 cm.sup.-1 in an absorption percentage A of at least 20% and absorbs an infrared in a frequency region of 3560 .+-.10 cm.sup.-1 in an absorption percentage B of at least 5%, the ratio of A/B being at least 2, has a specific surface area of at least 650 m.sup.2 /g, has a framework SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of from 20 to 50, and has a lattice constant of from 24.15 to 24.50 .ANG.. The novel faujasite-type aluminosilicate is produced by treating a faujasite-type zeolite with an acid.

Abstract: A process for hydrodesulfurizing a sulfur-containing hydrocarbon which comprises contacting the sulfur-containing hydrocarbon under hydrodesulfurizing conditions in the presence of hydrogen with a catalyst composition comprising a Group VIA metal, a Group VIII metal and an alumina, the catalyst composition containing the Group VIA metal and the Group VIII metal in a combined amount of 20 to 70% by weight based on the total of the Group VIA metal, the Group VIII metal and the alumina. The catalyst composition being characterized by (i) an X-ray diffraction pattern having no diffraction peak other than that of the alumina, and, (ii) after being air-calcined at 550.degree. C. for three hours, being characterized by a TRP which results in a ratio of the area L of a low temperature reduction peak to the area H of a high temperature reduction peak, L/H, of 0.1 to 0.45.

Abstract: A catalyst composition comprising a Group VIA metal, a Group VIII metal and an alumina, the catalyst composition containing the Group VIA metal and the Group VIII metal in a combined amount of 20 to 70% by weight based on the total of the Group VIA metal, the Group VIII metal and the alumina, being characterized by an X-ray diffraction pattern having no diffraction peak other than that of the alumina, and, after air-calcined at 550.degree. C. for three hours, being characterized by a TPR spectrum of the air-calcined catalyst composition in that the TPR spectrum gives a ratio of the area L of a low temperature reduction peak to the area H of a high temperature reduction peak, L/H, ranging from 0.1 to 0.45.

Abstract: A process for hydrocracking heavy oil which comprises hydrocracking the heavy oil in the presence of a catalyst comprising a support of 10 to 90% by weight of an iron-containing aluminosilicate and 90 to 10% by weight of an inorganic oxide, and at least one metal belonging to Group VIB of the Periodic Table and at least one metal belonging to Group VIII deposited on the support. The iron-containing aluminosilicate has a composition of the formula expressed as oxides: aFe.sub.2 O.sub.3 .multidot.Al.sub.2 O.sub.3 .multidot.bSiO.sub.2 .multidot.nH.sub.2 O wherein n is a real number of 0 to 30, and a and b are real numbers satisfying the following relationships: 15<b<100, 0.005<a/b<0.15; and has an inert iron compound content, (Fe).sub.dep, as calculated by a temperature programmed reduction, of not more than 35% of the total iron content; and when subject to a temperature programmed reduction, Th (.degree.C.), is within the following equation: 850.degree. C..ltoreq.Th.ltoreq.(-300.times.UD+8,300).

Abstract: An iron-containing aluminosilicate and a process for producing the iron-containing aluminosilicate. The iron-containing aluminosilicate has a composition of the formula expressed as oxides: aFe.sub.2 O.sub.3.Al.sub.2 O.sub.3.bSiO.sub.2.nH.sub.2 O wherein n is 0 to 30, and a and b are numbers satisfying the following relationships: 15<b<100 and 0.005<a/b<0.15. The iron-containing aluminosilicate has an inert iron compound content (Fe).sub.dep as calculated by a temperature-programmed reduction, of not more than 35%, and at least one high-temperature reduction peak, Th (.degree. C.), within the following equation: 700.degree.C..ltoreq.Th.ltoreq.(-300.times.UD+8,320).degree. C. wherein UD is a lattice constant (.ANG.) of the iron-containing aluminosilicate.

Abstract: A hydrocracking catalyst for heavy hydrocarbon oils comprising a metallic element of the VIb Group and a metallic element of the VIII Group supported on a carrier containing a novel faujasite aluminosilicate which absorbs infrared in a frequency region of 3740.+-.10 cm.sup.-1 in an absorption percentage A of at least 20% and absorbs infrared in a frequency region of 3560.+-.10 cm.sup.-1 in an absorption percentage B of at least 5%, the ratio of A/B being at least 2, has a specific surface area of at least 650 m.sup.2 /g, has a framework SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of from 20 to 50, and has a lattice constant of from 24.15 to 24.50 .ANG.. The novel faujasite aluminosilicate is produced by treating a faujasite zeolite with an acid.