An organic base modified composite catalyst for producing ethylene by hydrogenation of carbon monoxide is a composite catalyst and formed by compounding component I and component II in a mechanical mixing mode. The active ingredient of the component I is a metal oxide; the component II is an organic base modified zeolite of MOR topology; and a weight ratio of the active ingredients in the component I to the component II is 0.1-20, and preferably 0.3-8. The reaction process has an extremely high product yield and selectivity. The selectivity of C.sub.2-C.sub.3 olefins is as high as 78-87%; the selectivity of hydrocarbon products with more than 4 C atoms is less than 10%; the selectivity of a methane side product is extremely low (<9%); and meanwhile, the selectivity of the ethylene is 75-82%.

A method is provided for the synthesis of aluminum-containing forms of molecular sieve CIT-15. The method includes treating an aluminogermanosilicate CIT-13 molecular sieve with water under conditions sufficient to degermanate at least a portion of the aluminogermanosilicate CIT-13 molecular sieve to provide a phyllosilicate comprising delaminated cfi-layers; and calcining the phyllosilicate under conditions sufficient to convert the phyllosilicate to an aluminogermanosilicate CIT-15 molecular sieve.

A method is provided for the synthesis of aluminum-containing forms of molecular sieve CIT-15. The method includes treating an aluminogermanosilicate CIT-13 molecular sieve with water under conditions sufficient to degermanate at least a portion of the aluminogermanosilicate CIT-13 molecular sieve to provide a phyllosilicate comprising delaminated cfi-layers; and calcining the phyllosilicate under conditions sufficient to convert the phyllosilicate to an aluminogermanosilicate CIT-15 molecular sieve.

According to one or more embodiments, a nano-sized, mesoporous zeolite particle may include a microporous framework comprising a plurality of micropores having diameters of less than or equal to 2 nm and a BEA framework type. The nano-sized, mesoporous zeolite particle may also include a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm. The zeolite particles may be integrated into hydrocracking catalysts and utilized for the cracking of heavy oils in a pretreatment process.

The present invention provides an amphiphilic molecular sieve containing a hydrophilic group on the outside and a lipophilic group on the inside and a production method thereof. The production method comprises: dispersing the ZSM-5 spherical nano-molecular sieve into toluene, adding thereto an organosilane containing a hydrophilic group and reacting at 40-80 C. for 2-16 h, to obtain a molecular sieve containing a hydrophilic group; placing the molecular sieve containing a hydrophilic group in an aqueous solution of sodium hydroxide and reacting at 50-90 C. for 10-50 min, to obtain a molecular sieve containing a hydrophilic group on the outside; dispersing the molecular sieve containing a hydrophilic group on the outside into toluene, adding thereto an organosilane containing a lipophilic group and reacting at 40-80 C. for 2-12 h, to obtain the amphiphilic molecular sieve containing a hydrophilic group on the outside and a lipophilic group on the inside. The present invention also provides an amphiphilic molecular sieve obtained by the above production method, which contains a hydrophilic group on the outside and a lipophilic group on the inside.

Embodiments of zeolite composite catalysts and methods of producing the zeolite composite catalysts are provided, where the methods comprise dissolving in an alkaline solution a catalyst precursor comprising at least one mesoporous zeolite while heating, stirring, or both to yield a dissolved zeolite solution, where the mesoporous zeolite has a molar ratio of SiO.sub.2/Al.sub.2O.sub.3 of at least 30, where the mesoporous zeolite comprises zeolite beta, adjusting the pH of the dissolved zeolite solution, aging the pH adjusted dissolved zeolite solution to yield solid zeolite composite from the dissolved zeolite solution, and calcining the solid zeolite composite to produce the zeolite composite catalyst, where the zeolite composite catalyst has a mesostructure comprising at least one disordered mesophase and at least one ordered mesophase, and where the zeolite composite catalyst has a surface area defined by the Brunauer-Emmett-Teller (BET) analysis of at least 600 m.sup.2/g.

Embodiments of zeolite composite catalysts and methods of producing the zeolite composite catalysts are provided, where the methods comprise dissolving in an alkaline solution a catalyst precursor comprising at least one mesoporous zeolite while heating, stirring, or both to yield a dissolved zeolite solution, where the mesoporous zeolite has a molar ratio of SiO.sub.2/Al.sub.2O.sub.3 of at least 30, where the mesoporous zeolite comprises zeolite beta, adjusting the pH of the dissolved zeolite solution, aging the pH adjusted dissolved zeolite solution to yield solid zeolite composite from the dissolved zeolite solution, and calcining the solid zeolite composite to produce the zeolite composite catalyst, where the zeolite composite catalyst has a mesostructure comprising at least one disordered mesophase and at least one ordered mesophase, and where the zeolite composite catalyst has a surface area defined by the Brunauer-Emmett-Teller (BET) analysis of at least 600 m.sup.2/g.

Provided are a structured catalyst for CO shift or reverse shift that can realize a long life time by suppressing the decline in function, a method for producing the same, a CO shift or reverse shift reactor, a method for producing carbon dioxide and hydrogen, and a method for producing carbon monoxide and water. The structured catalyst for CO shift or reverse shift (1) includes a support (10) of a porous structure composed of a zeolite-type compound, and at least one CO shift or reverse shift catalytic substance (20) present in the support (10), the support (10) has channels (11) connecting with each other, and the CO shift or reverse shift catalytic substance (20) is present at least in the channels (11) of the support (10).

An object of the present disclosure is to provide a structured photocatalyst that can effectively prevent aggregation of photocatalyst particles and maintain favorable photocatalytic functionality over a long period of time. A structured photocatalyst including a support of porous structure including a zeolite-type compound and at least one photocatalytic substance present in the support, the support including channels connecting with each other, and the photocatalytic substance including metal oxide nanoparticles and being present at least at the channels of the support.

The structured catalyst for oxidation for exhaust gas purification includes a support having a porous structure constituted by a zeolite-type compound, and at least one type of oxidation catalyst that is present in the support and selected from the group consisting of metal and metal oxide, the support having channels that communicate with each other, and the oxidation catalyst being present in at least the channels of the support.