Provided are: novel zeolite having an extremely small amount of specific Bronsted acid sites on the surface thereof, which is expected to be useful as a catalyst for the aromatization of a non-aromatic hydrocarbon typified by an aliphatic hydrocarbon; and a catalyst for use in the production of an aromatic hydrocarbon, which comprises the zeolite. Zeolite characterized by satisfying the following requirements (i) to (iii). (i) The zeolite has an average particle diameter of 100 nm or less. (ii) The zeolite is 10-membered ring microporous zeolite. (iii) The amount of the Bronsted acid sites on the outer surface of the zeolite is 0.1 to 10.0 μmol/g.

A secondary growth procedure described herein is used to prepare finned zeolites. The finned zeolites possess properties that are distinctly unique compared to crystals of similar size lacking fins. The procedure is amenable to a wide range of zeolite crystal structures.

To provide a technique enabling the effective use of a plant-derived Si source. The present technique is capable of providing a production method of a porous material containing Si and Al, in which a first Si source composition that is a plant-derived Si source and an Al source are used as at least raw materials. The first Si source composition may be a Si source recovered when a treatment for recovering the Si source is carried out after a carbonization treatment of a plant-derived raw material. A second Si source composition may be a treatment product obtained by a decarburization treatment of a plant-derived raw material.

To provide a technique enabling the effective use of a plant-derived Si source. The present technique is capable of providing a production method of a porous material containing Si and Al, in which a first Si source composition that is a plant-derived Si source and an Al source are used as at least raw materials. The first Si source composition may be a Si source recovered when a treatment for recovering the Si source is carried out after a carbonization treatment of a plant-derived raw material. A second Si source composition may be a treatment product obtained by a decarburization treatment of a plant-derived raw material.

Provided are zeolite catalysts that allow reactions to proceed at temperatures as low as possible when lower olefins are produced from hydrocarbon feedstocks with low boiling points such as light naphtha, make it possible to make propylene yield higher than ethylene yield in the production of lower olefins, and have long lifetime. The zeolite catalysts are used in the production of lower olefins from hydrocarbon feedstocks with low boiling points such as light naphtha. The zeolite catalysts are MFI-type crystalline aluminosilicates containing iron atoms and have molar ratios of iron atoms to total moles of iron atoms and aluminum atoms in the range from 0.4 to 0.7. The use of the zeolite catalysts make it possible to increase propylene yield, to lower reaction temperatures, and to extend catalyst lifetime.

A process is disclosed for producing small crystal, high surface area crystalline materials having the MFI and/or MEL framework-type, designated as EMM-30, using as a structure directing agent tetrabutylammonium cations and/or tetrabutylphosphonium cations, or 1,5-bis(N-tributylammonium)pentane dications, and/or 1,6-bis(N-tributylammonium)hexane dications. The compositions made according to that process, as well as the various dication compositions themselves, are also disclosed.

The present invention is directed to an alumino-borosilicate SSZ-57 zeolite having enhanced large pore selectivity. The alumino-borosilicate SSZ-57 zeolite of the present invention is characterized as having substantially all of its aluminum atoms located within regions of the zeolite structure which form the 12 ring channels.

A method of making a zeolite with encapsulated platinum is provided. The method includes dissolving an aluminum source in water to form a first solution, dissolving a hydroxide in water to form a second solution, dissolving a templating agent in water to form a third solution, and adding a silica source to the first solution to form a fourth solution. The method further includes adding the second solution to the fourth solution to form a fifth solution, adding the third solution to the fifth solution to form a sixth solution, and adding a platinum source to the sixth solution. The sixth solution is crystallized to form a solid product, which is recovered. The solid product is calcined. An ammonium ion exchange is performed on the solid product to form a second solid product, and the second solid product is calcined.

A method of making a zeolite with encapsulated platinum is provided. The method includes dissolving an aluminum source in water to form a first solution, dissolving a hydroxide in water to form a second solution, dissolving a templating agent in water to form a third solution, and adding a silica source to the first solution to form a fourth solution. The method further includes adding the second solution to the fourth solution to form a fifth solution, adding the third solution to the fifth solution to form a sixth solution, and adding a platinum source to the sixth solution. The sixth solution is crystallized to form a solid product, which is recovered. The solid product is calcined. An ammonium ion exchange is performed on the solid product to form a second solid product, and the second solid product is calcined.

An inorganic porous substrate having a silyl group represented by (i) and (ii) and having characteristics (iii) to (v), an inorganic porous support derived from the inorganic porous substrate, and a nucleic acid production method using the inorganic porous support: (i) a silyl group (A): a silyl group represented by the formula (i-1); (ii) a silyl group (B): at least one silyl group selected from the group consisting of silyl groups represented by (ii-1), (ii-2), and (ii-3); (iii) a particle diameter of 1 μm or more; (iv) a pore diameter of 20 nm or more; and (v) a cumulative pore volume in a pore diameter range of 40 nm to 1000 nm of more than 0.32 mL/g and 4 mL/g or less.

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