摘要:
Die Anmeldung betrifft ein Verfahren zur Herstellung von Mitteldestillaten mit verbesserten Kälteeigenschaften durch Hydrocracken von Mineralölfraktionen wie leichten und schweren Gasölen, Vakuumgasölen, Rückstandsölen und Mischungen derselben bei Drucken von 20 bis 200 bar, Temperaturen von 150 bis 500°C und spezifischen Katalysatorbelastungen WHSV zwischen 0,1 und 10 kg/l x h, wobei man den Ausgangsstoff mit Wasserstoff in Gegenwart eines Katalysators behandelt, der einen kristallinen Borosilikatzeolith vom Pentasiltyp, ein spaltaktives amorphes Aluminiumsilikat als Trägermaterial und ein oder mehrere Metalle aus der Gruppe VI b und/oder Gruppe VIII des Peroidensystems enthält.
摘要:
A catalyst composition which contains at least one metal from Group 2b and at least one metal from Group 6b of the Periodic Table of the Elements or compounds thereof and a crystalline trivalent metal (e.g. iron or gallium) silicate which is obtainable by maintaining an aqueous alkaline starting mixture comprising at least one trivalent metal (A) compound, at least one silicon compound, at least one compound of a metal from Group 1a of the Periodic Table of the Elements (MX) and organic nitrogen compounds at an elevated temperature until crystalline metal silicate has formed and subsequently separating crystalling metal silicate from the mother liquor, in which starting mixture the various compounds are present within the following molar ratios: RN : R₄NY = 1 - 1000, SiO₂ : R₄NY = 10 - 5000, SiO₂ : A₂O₃ = 50 - 300, SiO₂ : MX H₂O : SiO₂ = 5 - 100, RN representing a pyridine and R₄NY representing an organic quaternary ammonium compound. The catalyst composition can be used in a process for the preparation of hydrocarbons from synthesis gas.
摘要:
A high quality lube base stock oil of low pour point and excellent stability is produced from a waxy crude oil fraction in a single-stage hydrodewaxing process by using an improved ZSM-5 type catalyst having nickel-molybdenum, cobalt-molybdenum or a molybdenum hydrogenation agent incorporated thereon.
摘要:
New zeolite materials designated Nu-6(1) and Nu-6(2) having molar compositions expressed by the formula: wherein R is a monovalent cation or 1/n of a cation of valency n, X is silicon, and/or germanium, Y is one or more of aluminium, iron, chromium, vanadium, molybdenum, antimony, arsenic, manganese, gallium or boron, and H 2 0 is water of hydration additional to water notionally present when R is H and having defined X-ray diffraction patterns, are prepared from a reaction mixture containing X0 2 (preferably silica), Y 2 0 3 (preferably alumina) and a 4,4'-bipyridyl compound. At temperatures of 200°C or higher, Nu-6(1) is converted to Nu-6(2), a useful catalyst for xylenes isomerisation and the like.
摘要:
Process for the preparation of catalyst particles with hydrogenating activity, which process comprises co-mulling a binder material with a solid molybdenum and/or tungsten compound, mixing the co-mulled product obtained with a zeolite, shaping the mixture obtained to yield catalyst particles, and drying the catalyst particles.
摘要:
There is provided with the present invention a new process for up-grading products resulting from the steam-cracking of hydrocarbons which comprises bringing the steam-cracking reaction products in contact with a catalyst comprising a mixture of from 2.5 to 7.5% wt of Cr₂O₃, 5 to 17.5% wt of Al₂O₃ and 75 to 85% wt of a Zn-ZSM-5 zeolite or a Zn-ZSM-5 zeolite/asbestos and recovering the desired products.