Patent classifications
B01J2229/22
STRUCTURED PHOTOCATALYST, STRUCTURED PHOTOCATALYST COMPOSITION, PHOTOCATALYST COATED MATERIAL, METHOD FOR PRODUCING STRUCTURED PHOTOCATALYST, AND METHOD FOR DECOMPOSING ALDEHYDES
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.
FUNCTIONAL STRUCTURAL BODY AND METHOD FOR MAKING FUNCTIONAL STRUCTURAL BODY
To provide a functional structural body that can realize ong life time by suppressing the decline in function of the functional substance and that can attempt to save resources without requiring a complicated replacement operation, and to provide a method for making the functional structural body. The functional structural body (1) includes a skeletal body (10) of a porous structure composed of a zeolite-type compound, and at least one functional substance (20) present in the skeletal body (10), the skeletal body (10) has channels (11) connecting with each other, and the functional substance is present at least the channels (11) of the skeletal body (10).
STRUCTURED CATALYST FOR METHANOL REFORMING, METHANOL REFORMING DEVICE, METHOD FOR PRODUCING STRUCTURED CATALYST FOR METHANOL REFORMING, AND METHOD FOR PRODUCING AT LEAST ONE OF OLEFIN OR AROMATIC HYDROCARBON
To provide a highly active structured catalyst for methanol reforming that suppresses the decline in catalytic function and has excellent catalytic function, and a methanol reforming device. A structured catalyst for methanol reforming, including: a support of a porous structure composed of a zeolite-type compound; and a catalytic substance present in the support, in which the support has channels communicating with each other, and the catalytic substance is present at least in the channels of the support.
FUNCTIONAL STRUCTURAL BODY AND METHOD FOR MAKING FUNCTIONAL STRUCTURAL BODY
A functional structural body includes a skeletal body of a porous structure composed of a zeolite-type compound, and at least one type of metallic nanoparticles present in the skeletal body, the skeletal body having channels connecting with each other, the metallic nanoparticles being present at least in the channels of the skeletal body.
STRUCTURED CATALYST FOR CATALYTIC CRACKING OR HYDRODESULFURIZATION, CATALYTIC CRACKING APPARATUS AND HYDRODESULFURIZATION APPARATUS INCLUDING THE STRUCTURED CATALYST, AND METHOD FOR PRODUCING STRUCTURED CATALYST FOR CATALYTIC CRACKING OR HYDRODESULFURIZATION
To provide a structured catalyst for catalytic cracking or hydrodesulfurization that suppresses decline in catalytic activity, achieves efficient catalytic cracking, and allows simple and stable obtaining of a substance to be modified. The structured catalyst for catalytic cracking or hydrodesulfurization (1) includes a support (10) of a porous structure composed of a zeolite-type compound and at least one type of metal oxide nanoparticles (20) present in the support (10), in which the support (10) has channels (11) that connect with each other, the metal oxide nanoparticles (20) are present at least in the channels (11) of the support (10), and the metal oxide nanoparticles (20) are composed of a material containing any one or two more of the oxides of Fe, Al, Zn, Zr, Cu, Co, Ni, Ce, Nb, Ti, Mo, V, Cr, Pd, and Ru.
Methods for producing ethylene and propylene from naphtha
The presently disclosed subject matter relates to methods of producing ethylene and propylene by the catalytic steam cracking of naphtha using an HZSM-5 catalyst. An example method can include providing a naphtha feedstock, providing steam, and providing an HZSM-5 catalyst. The method can further include preparing the HZSM-5 catalyst by titanium modification or alkaline treatment, followed by phosphorus modification. The method can further include feeding the naphtha feedstock and steam to a reactor containing the catalyst and removing an effluent from the reactor having a combined yield of ethylene and propylene of greater than about 45 wt-%.
SELECTIVE SOLID CATALYST FOR TAIL END OF OLEFIN-EPOXIDATION FLOW REACTOR
In one example, a method for converting a first compound into a second compound is provided. The method includes providing the first compound in an entrance of a flow through reactor, wherein the entrance comprises a first catalyst and an oxidant, converting the first compound and the oxidant into the second compound as the first compound and the oxidant contact the first catalyst in the entrance of the flow through reactor while moving towards a tail end of the flow through reactor, and converting the first compound and the oxidant into the second compound via a solid catalyst comprising a white crystalline solid with a titanium content of about 0.5 to about 1.5 weight percent (wt %) in the tail end of the flow through reactor.
BETA ZEOLITE AND METHOD FOR PRODUCING SAME
Provided is a method for producing a beta zeolite, the method including bringing a beta zeolite parent powder synthesized without using an organic structure-directing agent into contact with an alkaline aqueous solution having a pH of 12 or higher. The liquid temperature of the alkaline aqueous solution is preferably se to 40 C. or above and 100 C. or below. The ratio of the parent powder to the alkaline aqueous solution is preferably set to 10 g/L or greater and 1000 g/L or less. The contact time is preferably 0.5 hours or longer and 48 hours or shorter. The SiO.sub.2/Al.sub.2O.sub.3 molar ratio is preferably s16 or less.
PROCESS FOR PREPARING A MESOPORIZED CATALYST, CATALYST THUS OBTAINED AND USE THEREOF IN A CATALYTIC PROCESS
A hydroconversion catalyst obtained by the process described, comprising a mesoporized zeolite with healed zeolitic structure, containing at least one network of micropores and at least one network of mesopores, having an atomic Si/Al ratio within the zeolite framework of greater than or equal to 2.3 and showing reduced amount of extra-framework aluminium with regard to that of a mesoporized zeolite with no healed zeolitic structure.
DELAMINATED LAYERED ZEOLITE PRECURSORS AND METHOD OF PREPARING SAME WITHOUT SONICATION
Provided is a scalable delamination of a SSZ-70 framework zeolite, without the need for sonication, which has been previously made difficult by the charged nature of the imidazolium structure-directing agents that are required for zeolite synthesis. The method comprises contacting a B-SSZ-70 zeolite precursor with a zinc source such as zinc nitrate and a fluoride source.