B01J29/084

Zeolite monolith compositions and methods for the catalytic cracking of alkanes

Porous zeolite monolith compositions for the catalytic cracking of alkanes. The compositions may be prepared layer by layer using a 3D printer such that the compositions comprise a plurality of micropores and a plurality of mesopores and may be characterized by macro-meso-microporosity.

CATALYTIC CRACKING PROCESS FOR A TRUE CIRCULAR SOLUTION FOR CONVERTING PYROLYSIS OIL PRODUCED FROM RECYCLED WASTE PLASTIC INTO VIRGIN OLEFINS AND PETROCHEMICAL INTERMEDIATES

Processes and systems for producing raw materials and for producing truly circular polymers. The systems and processes may include processing a waste-derived hydrocarbon stream, such as a waste plastic pyrolysis oil, in a first reactor system with a catalyst mixture, and processing a fossil-based feedstock in a second reactor system with the catalyst mixture. The catalyst mixture may be supplied to each of the first and second reactor systems from a common catalyst regenerator. An effluent comprising fossil-based hydrocarbon products may be recovered from the second reactor system, and an effluent comprising waste-derived hydrocarbon products may be recovered from the first reactor system. Following separations, spent catalyst from each of the first and second reactor systems may be returned to the common catalyst regenerator.

High activity, high gasoline yield and low coke fluid catalytic cracking catalyst
11370974 · 2022-06-28 · ·

A microspherical fluid catalytic cracking (FCC) catalyst includes a zeolite and alumina comprising a strong Lewis site density of less than 70 μ.Math.ηol/g.

PROCESS

A process for dehydrating methanol to dimethyl ether product in the presence of a catalyst and a promoter, wherein the catalyst is at least one aluminosilicate zeolite, wherein:—the aluminosilicate zeolite is selected from: (i) a zeolite having a 2-dimensional framework structure comprising at least one channel having a 10-membered ring, and having a maximum free sphere diameter of at least 4.8 Angstroms; (ii) a zeolite having a 3-dimensional framework structure comprising at least one channel having a 10-membered ring; or (iii) a zeolite comprising at least one channel having a 12-membered ring;—the promoter is selected from one or more compounds of Formula I: (I) wherein Y is selected from a C.sub.1-C.sub.4 hydrocarbyl substituent, and wherein each of X and any or all of the Z's may independently be selected from hydrogen, halide, a substituted or unsubstituted hydrocarbyl substituent, or a compound of the formula —CHO, —CO.sub.2R, —COR, or —OR, where R is hydrogen or a substituted or unsubstituted hydrocarbyl substituent, and wherein the molar ratio of promoter to methanol is maintained at less than 1.

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Method for preparing hydrocracking catalyst

This invention discloses a preparation method of a hydrocracking catalyst. According to the method, a new functional group is modified through chemical bonds on the surface of a traditionally prepared inorganic carrier, and a VIB group metal element and a VIIIB metal element are then loaded on the carrier to prepare the hydrocracking catalyst. The hydrocracking catalyst prepared according to the invention has a higher diesel liquid yield.

COMPOSITE CATALYST FOR POLYOLEFIN DEPOLYMERIZATION

Catalytic compositions for depolymerizing polyolefin-based waste material into useful petrochemical products and methods of use are described. The compositions are a composite of at least one zeolite catalyst with one or more co-catalyst(s) that is a solid inorganic material. These composite catalysts, along with heat, are used to both increase the depolymerization reaction rate of the feed streams and suppress poisoning effects of non-polyolefin polymers that may be present. This results in a shorter residence time in the depolymerization unit and more efficient process.

Zeolite catalyst and method for preparation of aromatic tricyclic pyrans

Provided herein are methods for converting CBD to a product mixture comprising Δ.sup.8-THC, Δ.sup.9-THC, or a combination thereof. The methods provided herein may comprise one or more of (1) a contacting step wherein a starting material comprising CBD, a catalyst comprising a zeolite, and optionally a solvent are added to a reaction vessel, thereby forming a reaction mixture; (2) a conversion step wherein at least a portion of the CBD is converted to THC, thereby forming a product mixture; and (3) optionally, a separation step wherein at least a portion of the catalyst is removed from the product mixture. Advantageously, the methods do not require the use of catalysts or other reagents that are hazardous to human health.

Catalysts and process for liquid hydrocarbon fuel production
20230271172 · 2023-08-31 ·

The present invention provides a novel process and system in which a mixture of carbon monoxide and hydrogen synthesis gas, or syngas, is converted into hydrocarbon mixtures composed of high quality gasoline components, aromatic compounds, and lower molecular weight gaseous olefins in one reactor or step. The invention utilizes a novel molybdenum-zeolite catalyst in high pressure hydrogen for conversion, as well as a novel rhenium-zeolite catalyst in place of the molybdenum-zeolite catalyst, and provides for use of the novel catalysts in the process and system of the invention.

PROCESS FOR CATALYTIC CRACKING AND EQUILIBRIUM FCC CATALYST

A process for catalytic cracking of an iron-contaminated fluid catalytic cracking (FCC) feedstock. The process may include combining a FCC catalyst, a slurry containing a magnesium compound, and an iron-contaminated FCC feedstock during a FCC process under fluid catalytic cracking conditions, thereby generating an equilibrium FCC catalyst with reduced iron poisoning. The slurry containing the magnesium compound may not contain a calcium compound.

OXIDES OF SULFUR AND THEIR USE AS OXYGEN TRANSFER REAGENTS
20230271170 · 2023-08-31 · ·

An oxide of sulfur oxygen transfer reagent is provided. A method of producing olefins from hydrocarbons with a concomitant production of water (oxidative dehydrogenation), using the oxide of sulfur oxygen transfer reagent is also provided. The sulfur oxygen transfer reagent can be used as an oxygen transfer reagent, and therefore acts as a non-metal carrier, for oxygen in a redox looping reactor for an oxidative dehydrogenation process such as the conversion of ethane to ethylene. The reduced forms of oxides of sulfur, formed in in this oxidative dehydrogenation process, can be re-oxidized with air and generate useful process heat. Also provided are methods of using the oxide of sulfur oxygen transfer reagent, and an apparatus for effecting the oxidative dehydrogenation of the hydrocarbon feed. Methods of producing the oxide of sulfur oxygen transfer reagent are also provided.