Abstract:
The invention relates to a porous heterogeneous catalyst. In order to prepare a catalyst that, with relatively high selectivity, catalyzes the hydrogenation of isolated unsaturated bindings of multiple unsaturated compounds, it is recommended according to the present invention that the inner surface of the catalyst is covered with an ionic fluid.
Abstract:
The present invention relates to a process for the production of ethylene, from a feedstock comprising ethanol, in the presence of a phosphotungstic acid catalyst.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines aromatischen Amins durch Umsetzung eines entsprechenden aromatischen Alkohols mit einem Aminierungsmittel ausgewählt aus der Gruppe bestehend aus Ammoniak, primärer Amine und sekundärer Amine, in Gegenwart von Wasserstoff und eines Katalysatorformkörpers, bei einer Temperatur von 60 bis 300°, dadurch gekennzeichnet, dass der Katalysatorformkörper Zr, Pd und Pt enthält und eine Ringtablettenform mit einem Außendurchmesser im Bereich von 2 bis 6 mm und einer Höhe im Bereich von 1 bis 4 mm und einem Innendurchmesser von 1 bis 5 mm oder eine topologisch äquivalente Form mit gleichem Volumen aufweist. Ein weiterer Gegenstand der vorliegenden Erfindung sind Katalysatorformkörper enthaltend Zr, Pd und Pt, dadurch gekennzeichnet dass der Katalysatorformkörper eine Ringtablettenform, mit einem Außendurchmesser im Bereich von 3 bis 6 mm und einer Höhe im Bereich von 1 bis 4 mm und einem Innendurchmesser von 2 bis 5 mm oder eine topologisch äquivalente Form aufweist.
Abstract:
A disclosed honeycomb structural body having a pillar-shaped honeycomb unit including inorganic particles and an inorganic binder, in which plural cells extending along a longitudinal direction from one end face to another end face of the honeycomb unit are partitioned by cell walls. The inorganic particles include ceria particles and a ceramic material having a lower degree of self-sintering than the ceria particles.
Abstract:
The invention provides a chlorine production catalyst that shows excellent reaction activity in the oxidation reaction of hydrogen chloride with oxygen into chlorine, is inexpensive and can be supplied stably, and is suited for use in a fluidized-bed reactor. The invention also provides a chlorine production process using the catalyst. The chlorine production catalyst of the invention includes spherical particles containing copper element (A), an alkali metal element (B) and a lanthanoid element (C) and having an average sphericity of not less than 0.80. The lanthanoid element (C) has a bond dissociation energy with oxygen at 298 K of 100 to 185 kcal/mol. The content of the copper element (A) in the catalyst is 0.3 wt% to 4.5 wt%.
Abstract:
The structure (102, 302, 402, 502, 602, 702, 802, 902) comprises one or more segments (404, 604) having axially oriented substantially parallel fluid flow passages (110, 304, 410, 510, 610,710,810,910); cell walls (112, 312, 412, 512, 612, 712, 812, 912) between adjacent fluid flow passages, each cell wall having at least two opposite cell wall surfaces, and comprising (in or on a cell wall surface) at least one active compound that can interact with a fluid contained within or passed through the passages; and a plurality of axially continuous, axially oriented, filaments (114, 314, 414, 514, 614,714, 814,914) that are thermally and/or electrically conductive for transfer of thermal energy from the active compound. According to the invention the filaments are embedded within the cell walls in direct contact with the active compound on or in the cell wall surface, and can transfer thermal energy between the active compound and the conductive filaments.
Abstract:
The present invention relates to a nickel/lanthana-(Ni/La 2 0 3 ) catalyst for producing syngas from a hydrocarbon feedstrearn that is prepared in situ by depositing nickel (Ni) on a lanthana (La 2 O 3 ) support by contacting said La 2 O 3 support with an aqueous nickel-salt (Ni-salt) solution in the presence of an oxygen-comprising gas stream which is followed by reducing the deposited Ni. The catalyst of the present invention is characterized in that it can be continuously operated for more than 14 days in a process for producing syngas from a hydrocarbon feedstream without showing a significant loss of catalyst activity.
Abstract:
Disclosed is a composition containing carbon nanotubes which meets all of the following conditions (1) to (4). (1) When observed via transmission electron microscopy, at least 50 out of every 100 carbon nanotubes are double-walled carbon nanotubes. (2) The carbon nanotubes have an average outer diameter in the range of 1.0 to 3.0 nm. (3) During thermogravimetric analysis under atmosphere at a temperature increase rate of 10°C/minute, a high temperature combustion peak is at 700 to 850°C, and the relationship between low temperature weight loss (TG(L)) and high temperature weight loss (TG(H)) is TG(H)/(TG(L)+TG(H))≥0.75. (4) The composition containing carbon nanotubes has a volume resistance value between 1.0×10 -2 Ω·cm and 1.0×10 -4 Ω·cm, inclusive. The disclosed composition containing carbon nanotubes primarily has double-walled carbon nanotubes with high electrical conductivity and high heat resistance.