The present disclosure relates to a method for preparing a multi-level pore zeolite, including: (A) a step of mixing a silicon precursor, an aluminum precursor, a phosphorus precursor, a structure directing agent and water; a step of (B) adding phenylphosphonic acid, carbon black or a mixture thereof to the mixture prepared in the step (A) and mixing the same; a step of (C) crystallizing the mixture prepared in the step (B) by heat-treating the same; and a step of (D) calcining the crystallization product, and utilization of the prepared multi-level pore zeolite as a catalyst for hydroisomerization of normal paraffins. The catalyst exhibits improved isoparaffin yield when it is used as a catalyst for hydroisomerization of normal paraffins such as diesel or lube base oil by supporting an active metal component because residence time of reactants and products in the zeolite crystals are decreased due to mesopores and the proportion of external acid sites to total acid sites is low. Also, cloud point and pour point are effectively improved and high hydroisomerization reactivity is achieved without product loss.

The present invention provides a single step process for the synthesis of furfuryl ethyl ether comprises refluxing the reaction mixture of furfuryl alcohol, ethanol and catalyst at temperature in the range of 80 to 120 C. for the period in the range of 3 to 7 hrs to afford furfuryl ethyl ether. The catalyst used in present invention is Zr incorporated SBA-15. Further, the conversion of furfuryl alcohol is in the range of 60 to 90%. The selectivity of reaction towards furfuryl ethyl ether is in the range of 85 to 95%.

Provided here are zirconium-substituted hierarchical zeolite compositions and methods of preparing such catalytic compositions. One such method involves subjecting the zirconium-substituted zeolite to a framework modification process using a single template to produce a framework-modified zeolite, followed by subjecting the framework-modified zeolite to an ion exchange process to produce a hierarchical zeolite composition. Also provided are methods of catalytic cracking of hydrocarbon feedstocks using these zirconium-substituted hierarchical zeolite compositions.

According to one or more embodiments disclosed herein, a mesoporous zeolite may be made by a method comprising contacting an initial zeolite material with ammonium hexafluorosilicate to modify the framework of the initial zeolite material, and forming mesopores in the framework-modified zeolite material. The contacting may form a framework-modified zeolite material. The mesoporous zeolites may be incorporated into catalysts.

Catalysts are disclosed having metal oxide support structures and acidic reaction sites. Those reaction sites may have multiple bromine atoms bound to an aluminum atom with that aluminum-bromine group having an associated hydrogen ion. Additional structural features of the reaction sites are dictated by the aluminum oxide based catalysts and a silicon oxide based catalyst selected.

Methods for producing mesoporous beta zeolites from parent beta zeolites having a Si/Al molar ratio of at least 10 comprise selecting a target average mesoporous size between 2 nm and 8 nm for the parent beta zeolites, selecting a pore directing agent (PDA) based on the target average mesopore size, where a non-ionic surfactant, a small cationic surfactant has a molecular weight of greater than 100 grams/mole, or both may be selected as the PDA when the target average mesopore size is at least 5 nm, and a large cationic surfactant having a molecular weight of less than 100 grams/mole may be selected as the PDA when the target average mesopore size is less than 5 nm. The method further comprises adding the selected PDA to an alkaline solution to form a PDA-base mixture, and adding the parent beta zeolites to the PDA-base mixture to produce the mesoporous beta zeolites.

To provide a method for producing propionaldehyde directly from glycerol with high yield, gasified glycerol is brought into contact with a silica-type regular mesoporous body. More specifically, gasified glycerol is supplied to a catalyst layer containing a regular mesoporous body while heating the catalyst layer at a temperature ranging from 200 to 800 C. in such a manner that a W/F value can fall within the range from 0.001 to 1000 g.Math.min/ml inclusive wherein W represents an amount (g) of a catalyst and F represents a supply rate (ml/min) of supplied glycerol.

The present invention relates to a process for producing aromatics, p-xylene and terephthalic acid. The process for producing aromatics comprises a step of contacting an oxygen-containing raw material with an aromatization catalyst, under aromatization reaction conditions, to produce aromatics. The process for producing aromatics has an advantage of high yield of carbon as aromatics.

The present invention provides a single step process for the synthesis of furfuryl ethyl ether comprises refluxing the reaction mixture of furfuryl alcohol, ethanol and catalyst at temperature in the range of 80 to 120 C. for the period in the range of 3 to 7 hrs to afford furfuryl ethyl ether. The catalyst used in present invention is Zr incorporated SBA-15. Further, the conversion of furfuryl alcohol is in the range of 60 to 90%. The selectivity of reaction towards furfuryl ethyl ether is in the range of 85 to 95%.

Provided here are zirconium-substituted hierarchical zeolite compositions and methods of preparing such catalytic compositions. One such method involves subjecting the zirconium-substituted zeolite to a framework modification process using a single template to produce a framework-modified zeolite, followed by subjecting the framework-modified zeolite to an ion exchange process to produce a hierarchical zeolite composition. Also provided are methods of catalytic cracking of hydrocarbon feedstocks using these zirconium-substituted hierarchical zeolite compositions.