Abstract: Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions, a method for their preparation and their use as catalysts for the hydroprocessing of hydrocarbon feedstocks. More particularly, the new SAPOs have a high silica:alumina ratio, and may be prepared from single phase synthesis solutions or from microemulsions containing surfactants.

Abstract: A catalytic process is provided for converting a high boiling point range petroleum stream to distillate range product which includes contacting a petroleum feedstock having a boiling range from about 600° F. to about 1100° F. with a hydrocracking catalyst having a zeolite component with a framework silica to alumina ratio of at least 200:1, preferably 2000:1, and a hydrogenation component. The process is conducted under superatmospheric hydrogen partial pressure to effect at least 20% conversion, with at least 50% of the converted product remaining in the boiling range of about 330 to about 730° F.

Abstract: The invention provides a hydrocracking catalyst comprising at least one mineral matrix, at least one beta zeolite, at least one group VB element or at least one mixed sulphide phase comprising sulphur, optionally at least one group VIB or group VIII element, optionally at least one element selected from the group formed by silicon, boron or phosphorous, and optionally at least one group VIIA element.

Abstract: A process is provided for selectively producing diesel fuel with increased cetane number from a hydrocarbon feedstock. The process includes contacting the feedstock with a catalyst which has a large pore crystalline molecular sieve material component having a faujasite structure and alpha acidity of less than 1, preferably about 0.3 or less. The catalyst also contains a dispersed Group VIII noble metal component which catalyzes the hydrogenation/hydrocracking of the aromatic and naphthenic species in the feedstock.

Abstract: Applicants have prepared a novel zeolite identified as LZ-281. This zeolite has the framework topology of zeolite EMT. The LZ-281 zeolite is prepared by removing framework aluminum atoms from EMC-2 zeolite while simultaneously replacing the aluminum atoms with extraneous silicon atoms. This increases the SiO2/Al2O3 ratio versus the starting EMC-2 zeolite and results in the LZ-281 zeolite having increased thermal stability, increased number and/or strength of acid sites and increased activity in hydrocarbon processes requiring strong acid sites.

Abstract: The present invention provides a process for the preparation of a catalyst composition which comprises, as first cracking component, a zeolite beta, and a second cracking component selected from (i) crystalline molecular sieves having pores with diameters greater than 0.6 nm, (ii) clays, and (iii) amorphous cracking components, the process comprising the steps of: (a) preparing a mixture comprising the first cracking component and a gelatin material, and mixing intimately, (b) mulling with the second cracking component, and (c) extruding the mixture of step (b) into catalyst extrudates, and calcining the extrudates.

Abstract: The invention relates to a hydrocracking catalyst that contains at least one metal of group VIB, and/or at least one metal of group VIII of the periodic table, an alumina matrix, phosphorus, optionally at least one element from group VIIA (fluorine), and a zeolite Y that is not fully dealuminificated, with a crystalline parameter that is greater than 2,438 nm, an overall SiO2/Al2O3 ratio that is less than 8, and a framework SiO2/Al2O3 ratio that is less than 21 and greater than the overall SiO2/Al2O3 ratio. The invention also relates to a process for hydrocracking with this catalyst, in particular at low pressure of 7.5 to 11 MPa.

Abstract: A noble metal hydrocracking catalyst which has high selectivity for naphtha range products is provided. The hydrocracking catalyst comprises: a) from about 70 to about 90 weight percent of a Y zeolite, based on the catalyst having a silica to alumina mole ratio of from about 4.8 to less than 6.0, a unit cell constant within the range of about 24.50 to about 24.57, a Na2O level of less than or equal to about 0.2 weight percent; b) from about 10 to about 30 weight percent, based on the catalyst of an alumina having a mercury intrusion pore volume within the range from about 0.55 to about 0.85 cc/g; and c) from about 0.5 to 1 weight percent, based on the catalyst of a noble metal wherein said hydrocracking catalyst have a dispersivity of the noble metal of equal or greater than about 50% by hydrogen chemisorption measurement, a surface area of greater than or equal to 700 m2/g by BET surface area measurement, a compacted bulk density within the range of from about 0.40 to 0.

Abstract: Useful for example, for the hydrocracking of hydrocarbons is a catalyst comprising a matrix, at least one Y zeolite which is dealuminated and has a lattice parameter in the range 2.424 nm to 2.455 nm, a global SiO2/Al2O3 mole ratio is more than 8, the quantity of alkaline-earth metal cations or alkali metal cations and/or rare earth metal cations is such that the atomic ratio (n×Mn+)/Al is less than 0.8, the specific surface area, determined using the BET method, is more than 400 m2/g, and the water adsorption capacity is more than 6% by weight for P/P0 =0.2 at 25° C., said catalyst also comprising silicon deposited on the catalyst.

Abstract: A method for converting a polymer or oligomer derived from an ethylenically unsaturated monomer into alkanes or into a hydrocarbon fraction or a lower oligomer fraction by controlled hydrocracking, wherein the polymer or oligomer is exposed to a catalyst based on a metal hydride or an organometallic complex supported on a mineral carrier, the complex having at least one hydrocarbon ligand and optionally at least one hydride ligand, and the resulting mixture is reacted with hydrogen to cause catalytic hydrocracking of the polymer or oligomer. The polymer or oligomer is broken down into reclaimable products with a lower molecular weight for use, e.g., in the field of polymers, particularly controlled molecular weight polymers, fuels or lubricants.