Abstract:
A catalyst for the reforming of hydrocarbon-comprising compounds with CO2, water and/or hydrogen, a process for producing the same, and a process using the same for the reforming of the hydrocarbon-comprising compounds are provided. The production of the catalyst is based on contacting, intimately mixing and thermal treating of a hydrotalcite-comprising starting material with a fusible metal salt, which more preferably comprises nickel nitrate hexahydrate, to result in the metal salt melt. After molding and shaping, the compounds are subjected to high-temperature calcination step. In addition, the process using the catalyst for the reforming of the hydrocarbon-comprising compounds is carried out in a temperature range from 500 to 1100 °C at a pressure in the range from 2 to 70 bar. The catalyst is distinguished from the prior art by physicochemical properties.
Abstract:
A process for the production of a carbon supported catalyst, which comprises the following steps: (a) precipitation of at least one metal oxide onto a surface of a carbon-comprising sup¬ port by preparing an initial mixture, comprising the carbon-comprising support, at least one metal oxide precursor and an organic solvent, and spray-drying of the ini¬ tial mixture to obtain an intermediate product, (b) loading of noble-metal-comprising particles onto the surface of the intermediate product in a liquid medium by deposition, precipitation and/or reduction of a noble- metal-comprising precursor with a reducing agent, (c) heat treatment of the catalyst precursor resulting from step (b) at a temperature higher than 400°C.
Abstract:
The invention relates to a process for producing a catalyst, where the catalyst comprises a catalytically active material and a carbon-comprising support, in which the carbon- comprising support is impregnated with a metal salt solution in a first step, the carbon- comprising support impregnated with the metal salt solution is subsequently heated to a temperature of at least 1500°C in an inert atmosphere to form a metal carbide layer and the catalytically active material is finally applied to the carbon-comprising support provided with the metal carbide layer. The invention further provides a catalyst which has been produced by the process and comprises a carbon-comprising support and a catalytically active material, with the carbon-comprising support having a metal carbide layer and the catalytically active material having been applied to the carbon-comprising support provided with the metal carbide layer.