B01J29/041

CRYSTALLINE ZEOLITE-TYPE MATERIAL
20230286819 · 2023-09-14 ·

The present invention relates to a microporous material of the zeolite type, known as IDM-1, the method for preparing same, and applications thereof. Said material may be entirely silicon-based or may include different elements at either the reticular or non-reticular positions. The present invention falls within the fields of crystalline silicas, zeolites and catalysts.

Mesoporous metal titanates as multifunctional catalysts

The present disclosure relates to mesoporous metal titanate materials composition. Specifically, the present disclosure relates to a mesoporous metal titanate material composition that is active for multiple reactions, including aromatic alkylation, alkene coupling, alkene cyclization, alkyne oxidation, alcohol dehydrogenation reactions.

Catalyst for producing light olefins from C4-C7 hydrocarbons

The present invention relates to a catalyst for producing light olefins from C4-C7 hydrocarbons from catalytic cracking reaction and the production process of light olefins from said catalyst, wherein said catalyst has core-shell structure comprising a zeolite core with mole ratio of silicon to aluminium (Si/Al) between 2 to 250 and layered double hydroxide shell (LDH). The catalyst according to the invention provides high percent conversion of substrate to products and high selectivity to light olefins product.

CATALYST AND METHOD FOR PRODUCING DIENE COMPOUND

A catalyst includes at least one element X selected from the group consisting of Groups 3 to 6 of the Periodic Table, and at least one element Z selected from the group consisting of Group 14 elements. At least one diffraction peak is observed in a low angle range of θ=6° or less in an X-ray diffraction profile observed using X-ray diffraction. The at least one diffraction peak has a ratio (I/H) of a peak intensity I to a half width at half maximum H of the diffraction peak of 5000 or more.

Catalyst for preparing ethylbenzene from ethanol and benzene, preparation therefor and use thereof

Disclosed is a catalyst for producing ethylbenzene in one-step by vapor phase alkylation reaction of ethanol and benzene. The catalyst has the following features for the reaction: high alkylation reaction activity, high selectivity of ethylbenzene in an alkylation product, high hydrothermal stability and stable catalytic performance. The catalyst comprises a mesoporous-microporous composite TNU-9 molecular sieve and the silicon to aluminum molar ratio, SiO.sub.2/Al.sub.2O.sub.3, of the meso-microporous composite TNU-9 molecular sieve ranges from 50 to 200.

IRON-LOADED SMALL PORE ALUMINOSILICATE ZEOLITES AND METHOD OF MAKING METAL LOADED SMALL PORE ALUMINOSILICATE ZEOLITES

The present invention further provides a method of making an metal-loaded aluminosilicate zeolite having a maximum pore opening defined by eight tetrahedral atoms from pre-existing aluminosilicate zeolite crystallites, wherein the metal is present in a range of from 0.5 to 5.0 wt. % based on the total weight of the metal-loaded aluminosilicate zeolite.

Acidic catalyst

Methods of preparing an acidic catalyst are disclosed that include heating a metal halide to produce a vapor phase metal halide, contacting an initial support material with the vapor phase metal halide in a reaction vessel causing a first chemical reaction and producing an intermediate acidic catalyst, contacting the intermediate acidic catalyst with HBr causing a second chemical reaction and producing an acidic catalyst product which is both more acidic than the intermediate acidic catalyst and more acidic than the initial support material.

RARE EARTH-CONTAINING Y ZEOLITE, PREPARATION PROCESS THEREOF, AND CATALYTIC CRACKING CATALYST CONTAINING THE ZEOLITE
20220250924 · 2022-08-11 ·

A rare earth-containing Y zeolite has at least two mesopore pore-size distributions at 2-3 nanometers and 3-4 nanometers. A catalytic cracking catalyst contains the rare earth-containing Y zeolite. When used in the catalytic cracking of heavy oil, the catalytic cracking catalyst provided has excellent heavy oil conversion ability, higher gasoline yield, and lower coke selectivity.

Process for interconversion of olefins with modified beta zeolite

Methods for interconverting olefins in an olefin-rich hydrocarbon stream include contacting the olefin-rich hydrocarbon stream with a catalyst system in an olefin interconversion unit to produce an interconverted effluent comprising ethylene and propylene. The contacting may be conducted at a reaction temperature from 450° C. to 750° C., a reaction pressure from 1 bar to 5 bar, and a residence time from 0.5 seconds to 1000 seconds. The catalyst system includes a framework-substituted beta zeolite. The framework-substituted beta zeolite has a *BEA aluminosilicate framework that has been modified by substituting a portion of framework aluminum atoms of the *BEA aluminosilicate framework with beta-zeolite Al-substitution atoms independently selected from the group consisting of titanium atoms, zirconium atoms, hafnium atoms, and combinations thereof.

Zeolites that include transition metals and methods for making such

Embodiments of the present disclosure relate to zeolites and method for making such zeolites. According to embodiments disclosed herein, a zeolite may have a microporous framework including a plurality of micropores having diameters of less than or equal to 2 nm and a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm. The microporous framework may include an MFI framework type. The microporous framework may include silicon atoms, aluminum atoms, oxygen atoms, and transition metal atoms. The transition metal atoms may be dispersed throughout the entire microporous framework.