Abstract:
The present invention relates to the method of synthesising large-area oxide catalysts on the base of exfoliated layered aluminosilicates. As layered aluminosilicate are used bentonite, montmorillonite, nontronite and saponite.
Abstract:
The invention relates to a catalyst comprising gold and a porous support containing at least one refractory oxide, wherein the gold content is between 0.01 and 5 wt. % in relation to the total weight of the catalyst, and wherein the gold particles are distributed homogeneously throughout said porous support, having a size of between 0.5 and 5 nm measured by electronic transmission microscopy.
Abstract:
A composition comprising an inorganic particulate material adapted to convert a biomass material into hydrolysis products is provided. The inorganic particulate material comprises at least 0.1 wt. % of at least one impurity in its crystal structure based on the total weight of the inorganic particulate material. Methods of convert a biomass material into hydrolysis products using the compositions comprising an inorganic particulate material are also provided.
Abstract:
This invention relates to a composite oxide, production and use thereof as a methane selective oxidizing catalyst. The composite oxide has a composition as illustrated by the formula RhR x Mo y V z O ´-± , wherein the symbols are as defined in the specification. When used as a methane selective oxidizing catalyst, the present composite oxide provides a high methane conversion and a high selectivity to the aimed products.
Abstract:
The present invention refers to a process for preparing mesoporous carbon loaded with a catalytically active metal and/or metal oxide nanoparticles, the so-obtained mesoporous carbon and the use thereof as a catalyst in a selective transfer hydrogenation process of α,β-unsaturated aldehydes to unsaturated alcohols. The preparation process containing at least 3 steps: 1) preparing a polymer gel by reacting an aldehyde or an aldehyde forming compound with a hydroxycarboxylic acid in the presence of an aliphatic polyamine and a block copolymer surfactant under hydrothermal conditions. 2) loading this polymer gel with metal ions by ion-exchange. 3) pyrolysis and carbonisation of the loaded polymer gel at elevated temperatures of 400 °C to 1000 °C.
Abstract:
A process for the conversion of a feed comprising a mixture of hydrogen and carbon monoxide to hydrocarbons, the hydrogen and carbon monoxide in the feed being present in a ratio of from 1:9 to 9:1 by volume, the process comprising the steps of: pre-treating a catalyst composition comprising titanium dioxide support and oxidic cobalt or a cobalt compound decomposable thereto, for a period of from 1 to 50 hours, with a hydrogen gas-containing stream comprising less than 10% carbon monoxide gas by volume of carbon monoxide gas and hydrogen gas, to form a reductively-activated catalyst; and contacting the feed at elevated temperature and atmospheric or elevated pressure with the reductively-activated catalyst; wherein the step of pre-treating the catalyst composition is conducted within a temperature range of from 200° C. to less than 300° C., preferably from 220° C. to 280° C., more preferably from 250° C. to 270° C.
Abstract:
A composition that comprises a support material having incorporated therein a metal component and impregnated with an additive compound that is an acetoacetic acid compound. The composition includes the support material that is impregnated with the additive compound and is useful in the hydroprocessing of hydrocarbon feedstocks, especially in the denitrogenation and desulfurization of distillate feedstocks to make ultra low sulfur diesel.