Abstract:
The present invention relates to a catalyst for the conversion of oxygenates to olefins, comprising a carrier substrate and a layer applied to the substrate, the layer containing one or more zeolites of an MFI-, MEL- and/or MWW-type structure, wherein the one or more zeolites contain one or more alkaline earth metals. The invention also relates to the production and use of said catalyst and to a method for the conversion of oxygenates to olefins using the catalyst.
Abstract:
The present invention relates to a reactor for the photocatalytic treatment of liquid or gas currents, comprising a pipe which the current to be treated flows through. At least one light source, at least one planar means M1 and at least one planar means M2 are arranged inside said pipe, wherein M1 has at least one photocatalytically active material and M2 reflects the light radiation emitted from the at least one light source. The reflective surface of the at least one means M2 and the inner wall of the pipe together form an angle that is greater than or equal to 0°, such that the light emitted from the light source is reflected from the at least one means M2 onto the photocatalytically active material. The invention further relates to a method for the photocatalytic treatment of liquid or gas currents by irradiation of light in the reactor according to the invention.
Abstract:
The present invention relates to a catalyst for the conversion of oxygenates to olefins, the catalyst containing one or more zeolites of an MFI-, MEL- and/or MWW-type structure and particles of one or more metal oxides, wherein the one or more zeolites of the MFI-, MEL- and/or MWW-type structure contain one or more alkaline earth metals, and the particles of the one or more metal oxides contain phosphorus, the phosphorus being at least partially present as an oxide, and the one or more alkaline earth metals being selected from the group consisting of Mg, Ca, Sr, Ba and combinations of two or more of these elements. The invention also relates to the production and use of said catalyst and to a method for the conversion of oxygenates to olefins using the catalyst.
Abstract:
The present invention relates to a method for the conversion of oxygenates to olefins, comprising the steps of (1) providing a gas stream that contains one or more ethers; and (2) contacting the gas stream provided in (1) with a catalyst; the catalyst comprising a carrier substrate and a layer applied to the substrate, wherein the layer contains one or more zeolites of an MFI-, MEL- and/or MWW-type structure.
Abstract:
La presente invención se refiere a un catalizador para la conversión de oxigenatos en olefinas, que comprende -un sustrato de soporte y -una capa aplicada al sustrato, en donde la capa comprende una o varias zeolitas del tipo de estructura de MFI, MEL y/o MWW, en donde las una o varias zeolitas comprenden uno o varios metales alcalinotérreos, a la preparación y su uso proceso para convertir oxigenatos en olefinas usando el catalizador.
Abstract:
The present invention relates to a catalyst for the conversion of oxygenates to olefins, the catalyst containing one or more zeolites of an MFI-, MEL- and/or MWW-type structure and particles of one or more metal oxides, wherein the one or more zeolites of the MFI-, MEL- and/or MWW-type structure contain one or more alkaline earth metals, and the particles of the one or more metal oxides contain phosphorus, the phosphorus being at least partially present as an oxide, and the one or more alkaline earth metals being selected from the group consisting of Mg, Ca, Sr, Ba and combinations of two or more of these elements. The invention also relates to the production and use of said catalyst and to a method for the conversion of oxygenates to olefins using the catalyst.
Abstract:
The present invention relates to a catalyst for the conversion of oxygenates to olefins, the catalyst containing one or more zeolites of an MFI-, MEL- and/or MWW-type structure and particles of one or more metal oxides, wherein the one or more zeolites of the MFI-, MEL- and/or MWW-type structure contain one or more alkaline earth metals, and the particles of the one or more metal oxides contain phosphorus, the phosphorus being at least partially present as an oxide, and the one or more alkaline earth metals being selected from the group consisting of Mg, Ca, Sr, Ba and combinations of two or more of these elements. The invention also relates to the production and use of said catalyst and to a method for the conversion of oxygenates to olefins using the catalyst.
Abstract:
The present invention relates to a catalyst for the conversion of oxygenates to olefins, comprising a carrier substrate and a layer applied to the substrate, the layer containing one or more zeolites of an MFI-, MEL- and/or MWW-type structure, wherein the one or more zeolites contain one or more alkaline earth metals. The invention also relates to the production and use of said catalyst and to a method for the conversion of oxygenates to olefins using the catalyst.
Abstract:
The present invention relates to a method for purifying a contaminant-laden current by bringing the current to be purified in contact with a heterogeneous photocatalyst and irradiating it with light, wherein it is brought into contact in the presence of at least one compound, which is dissolved in the current and contains at least one metal selected from the group consisting of iron, chromium, nickel, cobalt, manganese, and mixtures thereof, and to the use of a heterogeneous photocatalyst for purifying a contaminant-laden current, wherein at least one compound containing at least one metal selected from the group consisting of iron, chromium, nickel, cobalt, manganese, and mixtures thereof, is present in dissolved form in the current to be purified.