Abstract: The present invention concerns a catalyst and pre-treatment process for acidic charges consisting of sulfated zirconia and cerium for the production of biofuels, characterized in that the catalyst has greater activity and resistance to deactivation with acidic charges.

Abstract: The present invention concerns a process for producing biodiesel with bifunctional heterogeneous acidic catalysts from acidic raw materials, such as fatty acids and mixtures of fatty acids with triglycerides.

Abstract: The present invention concerns a process for producing biodiesel with bifunctional heterogeneous acidic catalysts from acidic raw materials, such as fatty acids and mixtures of fatty acids with triglycerides.

Abstract: The present invention addresses to catalysts applicable to the conversion of CO to CO2 and H2 by the water-gas shift reaction. Such catalysts are made up of iron oxides, zirconium oxides, cerium oxides or a mixture of the same, promoted by platinum (Pt) contents between 0.1 and 0.4% m/m and with a sodium (Na) content below 0.01% m/m, based on the oxidized material. The present invention makes it possible to obtain catalysts with a high dispersion of Pt, with metallic particles of the order of 1 nm and methods of preparation by coprecipitation of soluble salts in aqueous medium using ammonium hydroxide as a precipitating agent.

Abstract: The present invention concerns a catalyst and pre-treatment process for acidic charges consisting of sulfated zirconia and cerium for the production of biofuels, characterized in that the catalyst has greater activity and resistance to deactivation with acidic charges.

Abstract: The present invention relates to a process of synthesis of silica-based adsorbents used in the CO2 capture process in oil fields with expressive volumes of associated CO2, aiming its subsequent use in processes of producing bioQAV and alcohol from the hydrogenation reaction. Adsorbents obtained based on silica and different metals have a high stability and activity in CO2 capture, at adsorption and desorption temperatures of 25° C., increasing the density of the silanol groups present in mesoporous silica, conducted by replacing Si in the crystal lattice with various metals. The insertion of elements in the structure is responsible for creating vacancies used to capture CO2, being characteristic of higher enthalpies involved in the process.

Abstract: The invention described herein proposes steam reforming processes in two stages, the first stage being passing a synthesis gas stream through a first catalyst bed comprising an alkali metal and/or iron titanate based catalyst, and a second stage comprising at least a second catalyst bed containing a refractory supported metal catalyst, preferably having NiO as the metal phase supported with barium hexa-aluminate.

Abstract: The invention described herein proposes steam reforming processes in two stages, the first stage being passing a synthesis gas stream through a first catalyst bed comprising an alkali metal and/or iron titanate based catalyst, and a second stage comprising at least a second catalyst bed containing a refractory supported metal catalyst, preferably having NiO as the metal phase supported with barium hexa-aluminate.

Abstract: The present invention relates to a method of preparing catalysts based on molybdenum sulphide, with an alkaline promoter incorporated, said catalysts being employed in the production of alcohols, especially ethanol, from synthesis gas. The method involves reaction of molybdenum hexacarbonyl (Mo(CO)6) with sulphur, so as to generate molybdenum sulphide, in which an alkaline promoter is then incorporated, so as to obtain a solid catalyst for application in processes of production of alcohols from synthesis gas, selective for ethanol.