Instituto Mexicano Del Petroleo

José Marie Maurice Julien Fripiat

Francisco Javier Hernández Beltrán

Patricia Pérez Romo

María De Lourdes Alejandra Guzmán Castillo

Héctor Armendáriz Herrera

Jaime Sanchez Valente

Maria De Lourdes Alejandra Guzman Castillo

Hector Armendariz Herrera

Candido Aguilar Barrera

Jaime Sánchez Valente

Luis Miguel Rodríguez Otal

Pedro Martín Vega Merino

Patricia PÉREZ Romo

María De Lourdes Alejandra GUZMÁN Castillo

Héctor ARMENDÁRIZ Herrera

Francisco Javier HERNÁNDEZ BELTRÁN

Jaime SÁNCHEZ Valente

The present invention relates to a process for modifying the physical and chemical properties of Faujasite Y-type zeolites (FAU), mainly used as a base material of catalyst used in the Fluid Catalytic Cracking (FCC) process, for the interest of the oil refining industry, in which the conversion of oil heavy fractions into lighter fractions, with a higher commercial value, is carried out. The process produces a modified Faujasite Y-type zeolite, with lower sodium content, as low as 75%, than that of the starting Faujasite Y-type zeolite. A mesoporous material associated with the modified Faujasite Y-type zeolite has an average pore size ranging from 2 to 100 nm, having a bimodal or multimodal pore size distribution. The proportion of modified Faujasite Y-type zeolite with respect to the meso-porous material associated to the Faujasite Y type Zeolite can be regulated through the process operation conditions.

Process for modifying the physical and chemical properties of faujasite Y-type zeolites

The physical and chemical properties of Faujasite Y-type zeolites (FAU), mainly used as a base material of catalyst used in the Fluid Catalytic Cracking (FCC) process, are modified by contact with a short-chain polyol and mixture with an ammonium salt followed by thermal treatment to produce a modified Faujasite Y-type zeolite with sodium content as low as 75% below that of the starting Faujasite Y-type zeolite. The modified Faujasite Y-type zeolite is dispersed in a mesoporous material having an average pore size ranging from 2 to 100 nm.

Process for altering the physico-chemical properties of Faujasite Y-type zeolites

A method for eliminating silicon or silicon compounds in alumina based materials without destroying such alumina based materials enabling reutilization particularly in catalysts for hydrotreating processes, comprising: a) mixing alumina based solid material which contains silicon with an alcohol extraction agent at a temperature between 10 and 300&#xb0; C., for 10 minutes to 96 hours to form a mixture; b) separating solids from the mixture by centrifugation, decantation or filtration to obtain separated solids; c) washing the separated solids with at least one of water, alcohol or an ammonium hydroxide solution to form washed solids; and d) drying the washed solids to obtain regenerated alumina based solid material.

Non-destructive process for the elimination of silicon from alumina based materials

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Mexico City, Mexico

José Marie Maurice Julien Fripiat