Abstract:
A process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a catalyst comprising (a) ruthenium metal or a ruthenium oxide, (b) manganese oxide and (c) alkaline metal component or alkaline earth metal component.
Abstract:
A process is described for enhancing the fuel quality of hydrotreated hydrocarbon blends, possibly dearomatized, through reaction with hydrogen, in the presence of a new catalytic composition comprising one or more metals selected from Pt, Pd, Ir and Rh, and a zeolite of the FAU type, containing one or more cations of metals Me selected from alkali metals, alkaline earth metals, and lanthanoids, and containing from 0.04 to 0.4 moles of hydrogen ions per mole of aluminium present in the crystalline lattice of the zeolite. The process of the invention leads to an increase in the cetane number and a decrease in the density and T 95 , with a high selectivity in the gas oil cut.
Abstract:
The present invention relates to a catalyst composition for conversion of vegetable oils to hydrocarbon products in the diesel boiling range, comprising a porous support; Group III A or VA element in the range of 1-10 wt%; Group VI B elements in the range of 1 to 20 wt%; Group VIII B elements in range of 0.01 to 10 wt%.. The present invention further provides the process for preparing the catalyst composition for conversion of vegetable oils to hydrocarbon products in the diesel boiling range. The present invention also provides the process for conversion of vegetable oils to hydrocarbon products in the diesel boiling range using the catalyst composition or discarded refinery spent hydrotreating catalyst.
Abstract:
The present invention refers to a method for metallizing a plastic surface of a plastic article having at least a part thereof made from a support comprising a supporting material and an electroless plating promoter. The method comprises the steps of: 1) gasifying the plastic surface to expose the electroless plating promoter; and 2) electroless plating a layer of copper or nickel on the plastic surface, followed by electroplating or a second electroless plating to form a metallized layer on the plastic surface. The electroless plating promoter includes one or more members selected from a group consisting of multicomponent oxides selected from a group consisting of Cu/Fe/Mn, Cu/Fe/Al and/or Cu/Fe/Al/Mn multicomponent oxides.
Abstract:
An object is to provide a method for producing 1,1,1,4,4,4-hexafluoro-2-butene with high efficiency, which is suitable for a flow reaction, and cis-1,1,1,4,4,4-hexafluoro-2-butene can be efficiently obtained when isomerization of hexafluoro-1,3-butadiene is conducted using a catalyst and the resultant mixture is successively subjected to catalytic hydrogenation to produce cis-1,1,1,4,4,4-hexafluoro-2-butene, wherein the whole process is performed by a flow catalytic reaction.
Abstract:
An improved Diesel exhaust filter element of the type having a rigid porous wall portion formed of an acicular ceramic (such as acicular mullite), the porous wall portion having a first side and a second side, the porous wall portion being coated with a precious metal catalyst and a Nox absorbent, such that when exhaust gas from a Diesel engine is flowed through the rigid porous wall from the first side to the second side, the exhaust gas containing excess oxygen, Nox and soot, the soot in the exhaust gas in trapped within the rigid porous wall and catalytically oxidized to carbon dioxide, the NO is catalytically oxidized to NO2, which NO2 is then absorbed by the Nox absorbent, and such that when the exhaust gas is caused to contain excess hydrocarbon and carbon monoxide, then the Nox absorbent is regenerated and the remaining hydrocarbon and carbon monoxide are catalytically converted to nitrogen and carbon dioxide. In addition, a process for depositing precipitated metal ions on the surfaces of such a rigid porous wall.
Abstract:
Catalysts which include nanoparticles of palladium metal and cellulose derivatives are used in electroless metal plating. The palladium catalysts are free of tin.
Abstract:
A method for preparing a lactone is described. Also described, is the preparation of butyrolactone, valerolactone and caprolactone. The method for preparing a lactone can include a reduction of a dicarboxylic acid using hydrogen, in a gaseous phase and in the presence of an effective amount of a catalyst including an active ruthenium-tin phase including at least one Ru2Sn3 alloy and an Ru3Sn7 alloy.