Disclosed are compositions for catalysts comprising a zeolite promoted by metal and or metal oxide. In some aspects, the metal and/or metal oxide comprise a mixture of two or more metal or metal oxides. In various aspects, the zeolite is a pentasil zeolite and/or a ZSM-5 type zeolite. Also disclosed are processes for making the disclosed heterogeneous catalysts comprising preparing a mixture of a zeolite and one or more metal salts, which can include use of incipient wetness impregnation methods. In various aspects, also disclosed are methods for direct, non-oxidative preparation of higher hydrocarbons from natural gas, including selective for high yield production of C6 and higher hydrocarbons. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

Disclosed are compositions for catalysts comprising a zeolite promoted by metal and or metal oxide. In some aspects, the metal and/or metal oxide comprise a mixture of two or more metal or metal oxides. In various aspects, the zeolite is a pentasil zeolite and/or a ZSM-5 type zeolite. Also disclosed are processes for making the disclosed heterogeneous catalysts comprising preparing a mixture of a zeolite and one or more metal salts, which can include use of incipient wetness impregnation methods. In various aspects, also disclosed are methods for direct, non-oxidative preparation of higher hydrocarbons from natural gas, including selective for high yield production of C6 and higher hydrocarbons. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

Iron oxide particles which have a polyhedral shape and which contain molybdenum. The crystallite size of the plane of the iron oxide particles is preferably 280 nm or more. Furthermore, a method for producing the iron oxide particles. The method includes calcining an iron compound in the presence of a molybdenum compound.

Iron oxide particles which have a polyhedral shape and which contain molybdenum. The crystallite size of the plane of the iron oxide particles is preferably 280 nm or more. Furthermore, a method for producing the iron oxide particles. The method includes calcining an iron compound in the presence of a molybdenum compound.

A continuous flow catalytic reactor, an assembling method therefor and an application thereof includes a reaction vessel, a filler packaged in the reaction vessel and a charged catalytic component; the charged catalytic component is fixed to the filler under an action of a direct-current electric field. The continuous flow catalytic reactor may be applied to continuous flow reactions such as a monosaccharide epimerization reaction. A monosaccharide epimerization reaction method includes: providing the continuous flow catalytic reactor; electrically connecting the continuous flow catalytic reactor with a direct-current power supply, thereby to forming the direct-current electric field by electrically connecting the continuous flow catalytic reactor with the direct-current power supply; and heating a reactor container to a target temperature, and inputting a monosaccharide solution from a liquid flow inlet of the reaction vessel and then collecting a solution containing a target product from a liquid flow outlet of the reaction vessel.

A process reducing sulfides R1-S-R2, with R1 and R2 methyl or ethyl, in a gasoline containing diolefins, mono-olefins and sulphur: A) contacting gasoline in mixture with a light gasoline cut recycled from C) and hydrogen in a reactor with catalyst A at least one VIb metal and at least one non noble group VIII metal on a support, producing effluent having diolefins and sulfides R1-S-R2, with R1 and R2 methyl or ethyl radicals lower than that that of the starting gasoline; B) the effluent from A) is sent into a fractionating column separating at the top a light gasoline cut containing hydrocarbons having less than 6 carbon atoms per molecule and at the bottom a heavy gasoline cut containing hydrocarbons having 6 and more than 6 carbon atoms per molecule; C) recycling a part of the light gasoline from B) to the reactor of A) with a recycle ratio 0.1 to 0.7.

A process reducing sulfides R1-S-R2, with R1 and R2 methyl or ethyl, in a gasoline containing diolefins, mono-olefins and sulphur: A) contacting gasoline in mixture with a light gasoline cut recycled from C) and hydrogen in a reactor with catalyst A at least one VIb metal and at least one non noble group VIII metal on a support, producing effluent having diolefins and sulfides R1-S-R2, with R1 and R2 methyl or ethyl radicals lower than that that of the starting gasoline; B) the effluent from A) is sent into a fractionating column separating at the top a light gasoline cut containing hydrocarbons having less than 6 carbon atoms per molecule and at the bottom a heavy gasoline cut containing hydrocarbons having 6 and more than 6 carbon atoms per molecule; C) recycling a part of the light gasoline from B) to the reactor of A) with a recycle ratio 0.1 to 0.7.

Use of Keplerate type polyoxomolybdates of the general structure Mo.sub.72M.sub.30, wherein M is selected from the group consisting of Fe, Cr, V or Mo.sub.2, for decontaminating aqueous media (water) from inorganic and organic pollutants

Use of Keplerate type polyoxomolybdates of the general structure Mo.sub.72M.sub.30, wherein M is selected from the group consisting of Fe, Cr, V or Mo.sub.2, for decontaminating aqueous media (water) from inorganic and organic pollutants

A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of cubic symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and/or cubic symmetry observable by microscopy.