Abstract:
This invention relates to a process for making methanol and ethanol from carbon dioxide and hydrogen. The process includes contacting a mixture of carbon dioxide and hydrogen with a catalyst system containing a ruthenium compound — and optionally, a chloride or bromide-containing compound — dispersed in a low-melting tetraorganophosphonium chloride or bromide salt under conditions effective to produce methanol and ethanol. The invention also relates to a process for making methanol and ethanol from carbon monoxide and water using the same catalyst system.
Abstract:
A process for producing an alcohol represented by the general formula (IIa) IIa (wherein R ' and R ' each represents hydrogen, an organic residue, or a group formed by reducing the organic residue, provided that R ' and R ' may be bonded to each other to form an optionally substituted cyclic group) which comprises reducing a compound represented by the general formula (Ia) Ia (wherein R and R each represents hydrogen or an organic residue, provided that R and R may be bonded to each other to form an optionally substituted cyclic group) in the presence of a transition metal complex having an a-aminocarboxamide compound as a ligand and of a base and a hydrogen-donating compound.
Abstract:
This invention discloses a process of conversion of Carbon Dioxide (CO2) into methane, methanol, formic acids or other fuels or chemicals, characterized by the use of Magnesium (Mg) nanoparticles (NPs) or bulk Mg for the conversion process, wherein Magnesium (Mg) chemisorbs and then activates the Carbon Dioxide (CO2) molecules by electron transfer to facilitate the reduction, using water as a hydrogen source. This conversion of Carbon Dioxide (CO2) is carried out at atmospheric pressure and at room temperature, and without any external energy source, such as thermal, light or electric energy source, or any sacrificial reagent or any co-catalysts. The reaction also facilitates in the production of high yield of Hydrogen.
Abstract:
La présente invention concerne un procédé de réduction de composés organiques insaturés choisis dans le groupe formé par les aldéhydes, les cétones, les imines, les acides carboxyliques, les amides, et les esters avec un formiate de bore de formule (I) en présence d'un solvant et éventuellement d'une base. L'invention concerne également l'utilisation du procédé de réduction de composés organiques insaturés choisis dans le groupe formé par les aldéhydes, les cétones, les imines, les acides carboxyliques, les amides, et les esters selon l'invention, dans la préparation du méthanol, d'aminés méthylées, de formaldéhyde et d'alcools; pour la préparation de réactifs pour les réactions de couplage Suzuki; et dans la fabrication de vitamines, de produits pharmaceutiques, de colles, de fibres acryliques, de cuirs synthétiques, de pesticides. Formula (I).
Abstract:
The present invention is directed to methods of preparing methanol from carbon dioxide. In preferred embodiments, the method comprises combining a photoactive multi- electron collector and an electron donor in the presence of light to form a two electron reduction product; and combining the two electron reduction product and carbon dioxide in the presence of one or more catalysts, thereby converting carbon dioxide to methanol.
Abstract:
The invention provides a method for rendering coal as an environmentally essentially carbon dioxide-neutral fuel. Carbon dioxide produced from coal combustion is captured, purified, combined with coalbed methane or any other natural methane or natural gas source, or with hydrogen, and reacted under reaction conditions sufficient to form methanol and/or dimethyl ether, which can be used as fuel or feedstock for derived synthetic hydrocarbons and products.
Abstract:
In a reactor of fuel cell type, methanol is produced from carbon dioxide and water. The reactor comprises a cathode side with a cathode (11) and catalyst for the cathode reaction, an anode side with an anode (12) and catalyst for the anode reaction, and an intermediate membrane (13) separating the cathode side from the anode side. Further, the reactor is divided into a plurality of cells (1, 2, 3) that are flow connected in series for carrying out a multi-step cathode reaction, where each cell has a catalyst that is optimized for the reaction step that is to be carried out in the cell. In the process, a voltage is connected between the cathode (11) and the anode (12), and in a first step the carbon dioxide is exposed to a first desired cathode reaction, where the carbon dioxide is reduced to formic acid, in a second step the formic acid is reduced to formaldehyde and water, and in a third step the formaldehyde is reduced to methanol. By using the collected carbon dioxide to produce methanol, which then advantageously may be used as fuel in fuel cells of DMFC type in vehicles, there is a possibility of achieving a considerable reduction of the amount of carbon dioxide that has to be deposited. In addition, at the anode (12), water is oxidized to hydrogen peroxide, which advantageously may be used as oxidant in fuel cells of DMFC type.