Abstract:
Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating neohexane and/or neoheptane to produce neopentane. The neohexane and/or neoheptane may be provided by the isomerization of C 6 -C 7 paraffins.
Abstract:
A method for the production of hydrocarbon(s), such as methane, or substituted hydrocarbons, such as methanol, the method comprising the steps of contacting a first catalyst with water in order to photocatalyse the splitting of at least some of the water into hydrogen and oxygen; and contacting a second catalyst with a gas stream comprising carbon dioxide and at least some of the hydrogen produced from step (a) in order to photocatalyse the reaction between the hydrogen and carbon dioxide to produce hydrocarbon(s), such as methane, and/or substituted hydrocarbons, such as methanol. In an embodiment, the catalyst comprises gold and or ruthenium nanoclusters supported on a substrate.
Abstract:
The invention discloses aneco-friendly process for hydrogenation (alkenealkene, carbonyl compound and aromatic) and hydrodeoxygenation (methoxy phenols) of organic compound using hydrous ruthenium oxide (HRO) and its supported form as a recyclable heterogeneous catalyst in aqueous medium with good yield of desired compounds (70-100%) under mild reaction conditions. The invention also discloses hydrogenation of organic compound such as alkene, carbonyl compound and substituted aromatic and also for the processes that involve hydrodeoxygenation, for example, lignin derived aromatic (methoxy phenols).
Abstract:
Methods for preparing isotopically modified 1,4-diene systems from non- isotopically modified 1,4-dienes involve selective oxidation of one or more bis-allylic position(s), or the preparation of isotopically modified 1,4-diene systems via trapping pi-allylic complexes with a source of deuterium or tritium. Such methods are useful for preparing isotopically modified polyunsaturated lipid including polyunsaturated fatty acids and polyunsaturated fatty acid derivatives.
Abstract:
A process is described for producing a methane-containing gas mixture comprising the steps of: (i) passing a first feed gas mixture comprising hydrogen and carbon dioxidethrough a bed of methanation catalyst to react a portion of the hydrogen with at least a portion of the carbon dioxide and form a methane-containing gas mixture containing residual hydrogen, (ii) adding an oxygen-containing gas to the methane-containing gas mixture containing residual hydrogen to form a second feed gas mixture, and (iii) passing the second feed gas mixture through a bed of an oxidation catalyst to react the residual hydrogen and oxygen to form a hydrogen depleted methane- containing gas mixture.
Abstract:
L'invention décrit un procédé de déshydrogénation d'une charge d'hydrocarbures contenant au moins une molécule ayant au moins 2 atomes de carbone et au moins une liaison C-C simple ou double en présence d'un photocatalyseur hétérogène sous irradiation comprenant les étapes suivantes : a) on met en contact ladite charge d'hydrocarbures avec un photocatalyseur hétérogène, b) on irradie le photocatalyseur hétérogène par au moins une source d'irradiation produisant au moins une longueur d'onde adaptée à l'activation dudit photocatalyseur de manière à déshydrogéner ladite charge d'hydrocarbures en présence dudit photocatalyseur activé par ladite source d'irradiation pour transformer ladite molécule de la charge ayant au moins ladite liaison C-C simple ou double en molécule ayant un degré d'insaturation supérieur de ladite liaison C-C, de manière à obtenir un effluent contenant au moins une molécule au moins partiellement déshydrogénée et de l'hydrogène, les étapes a) et b) étant effectuées en absence de dioxygène.
Abstract:
This invention is directed to novel mixed transition metal iron (II/III) catalysts for the extraction of oxygen from CO2 and the selective reaction with organic compounds.
Abstract:
A catalytic method is disclosed for the valorization of lignin. The method comprises subjecting lignin to a catalyzed hydrothermal conversion reaction, said reaction being conducted in the presence of water at an alkaline pH > 8 and a temperature of 200°C-300°C, under the influence of a noble metal catalyst comprising a carbon support. The same reaction can also be applied to subsequently defunctionalize one or more phenolic compounds, notably guaiacol, so as to produce six-membered cyclic hydrocarbons, such as phenol.