Abstract: A hydrogenation catalyst, obtainable by carrying out essentially the following steps:(a) treatment of a platinum metal salt with finely divided sulfur followed by(b) reduction of the platinum metal salt to metallic platinum metal.

Abstract: A coating dispersion is shown for the production of catalysis-promoting coatings on an inert, structure-reinforcing element. The solids of the dispersion are present in various particle fractions and lead to a relatively rough coating surface with improved exchange between the exhaust gas and the catalyst surface. This results in improved heat-up behavior of the catalyst.

Abstract: A ceramic honeycomb catalyst includes a thin-walled honeycomb structural body (10) and a catalytic substance carried by the honeycomb structural body (10). The honeycomb structural body (10) has a number of longitudinally extending flow passages (13) defined by an outer peripheral wall (11) and partition walls (12) with a reduced thickness (t). The honeycomb structural body (10) satisfies particular relationships between the partition wall thickness (t) and the open frontal area (OFA) or bulk density (G). Notwithstanding the thin-walled partition walls, the honeycomb structural body (10) has practically satisfactory compressive strength characteristics. The catalyst comprising the honeycomb structural body (10) has reduced pressure loss and heat capacity.

Abstract: A process is provided for the restoration of hydrogen sulfide removal capacity in nitrogen-treated carbonaceous chars which have become exhausted for hydrogen sulfide capacity when used for the removal of hydrogen sulfide from gas streams containing oxygen and water. This process entails washing the spent carbonaceous char with water of sufficient quantity to remove the majority of the hydrogen sulfide reaction products. By the use of this process a significant proportion of the original hydrogen sulfide capacity of the nitrogen-treated carbonaceous char is recovered.

Abstract: A carrier suitable for preparing a catalyst for hydrofining hydrocarbon oils which has a high ability to eliminate metals contained in the hydrocarbon oils and an improved metal tolerance as well as said catalyst are provided.The carrier of the present invention is an alumina-containing carrier which shows a peak at 2.theta. of 27.degree. in the powder X-ray diffraction pattern when carrying Mo and Co or one or more other metals selected from among metals of the groups VIA and VIII in the periodic table together with Mo and Co.

Abstract: A three-way catalyst is generally used in an automotive exhaust system. This catalyst has a sufficient total content of noble metal active species and is prevented from heat deterioration so that the activity of the noble metal active species can be well utilized at low temperatures to enable the catalyst to exhibit improved purification performance at the low temperatures. The catalyst comprises a first catalyst layer formed on the surface of a honeycomb-shaped carrier and containing Pd (palladium) and alumina (.gamma.-Al.sub.2 O.sub.3), and a second catalyst layer formed on the outer surface of the first catalyst layer and containing Pd and ceria (CeO.sub.2).

Abstract: A catalyst containing an overlayer of a catalytic promoter on a porous refractory support containing an underbedded Group VIII metal-containing component. The catalyst is prepared by sequential incorporation of the Group VIII metal followed by the additional catalytic promoter component, usually a Group VIB metal, with the porous refractory oxide support. The catalyst has a MoO.sub.3 /NiO weight ratio less than 6 to 1 and more than 4 weight percent of NiO. The catalyst is especially useful for simultaneous hydrodenitrogenation and hydrodesulfurization of a gas oil, particularly when the refractory oxide support has a narrow pore size distribution.

Abstract: This invention provides a method of forming a deposition film serving as a high-quality wiring layer having good stress migration durability against any material such as a non-monocrystalline material. A substrate is located in a deposition film formation space, a gas of an alkylaluminum halide is supplied to the deposition film formation space, and an aluminum film is selectively formed on an electron donor surface at a partial pressure of the alkylaluminum halide of 7.times.10.sup.-3 Torr to 9.times.10.sup.-2 Torr in the range of a decomposition temperature or more of the alkylaluminum halide and 450.degree. C. or less. When deposition is to be performed on the non-monocrystalline material, a chemical treatment for terminating with hydrogen atoms a non-electron donor surface of a substrate having the electron donor surface and the non-electron donor surface is performed, and the deposition film is deposited by a non-selective deposition method.

Abstract: An activated carbon adsorbent for removing nosioux gases and vapors from a contaminated air stream, and method of making same. The activated carbon has impregnated therein at least one compound selected from each of three groups of compounds. The three groups of compounds comprise sulfuric acid and sulfuric acid salts; molybdenum compounds, and copper compounds and zinc compounds. The amount of at least one sulfuric acid or salt thereof compound present is up to 10% by sulfate, by weight, the one molybdenum compounds is present in amounts up to 10% by weight, as molybdenum, and the total amount of copper or zinc compounds present is a total amount not greater than 20% by weight as total copper and zinc. The disclose adsorbents are desirably used in universal filters.

Abstract: The invention relates to a poison-resistant catalytically active microporous membrane to be used for heterogeneously catalyzed reactions, which membrane is characterized in that it is permeable to one of the reactants separated by said membrane, and that it is impermeable to the other reactants and the contaminants contained therein, the molecules of all of which are larger in size than the pore size of the membrane, and to a process for carrying out a heterogeneously catalyzed reaction under conditions preventing the catalyst from being poisoned. This membrane allows to conduct three-phase reactions in a new manner, whereby the reaction gas is directly transported to the active sites.

Abstract: The supported amine-polyol sorbent of the present invention comprises about 1 wt. % to about 25 wt. % amine, about 1 wt. % to about 25 wt. % polyol, with the balance being support. This sorbent is capable of absorbing and desorbing carbon dioxide at relatively high rates at ambient temperatures, thereby improving carbon dioxide sorption capacity.

Abstract: Process for the preparation of branched olefins comprising contacting a hydrocarbonaceous feedstock comprising linear olefins having at least four carbon atoms at elevated temperature with a catalyst which comprises a MeAPO and/or MeAPSO medium-pore molecular sieve having an anhydrous composition expressed in molar oxide ratios as follows; (MeO).sub.a (Al.sub.2 O.sub.3).sub.b (P.sub.2 O.sub.5).sub.c (SiO.sub.2).sub.d, whereby (a+b)/c is greater than 1.0, a ranges from 0.003 to 0.2, b and c range from 0.05 to 0.3, d is at most 0.4 and a/(c+d) is at least 0.05 when SiO.sub.2 is present, and Me is at least one of Mg, Mn, Co and Zn.

Abstract: The present invention provides a sorbent with a high pickup ratio (>30 to 1) that has environmental benefits relating to renewable resource use of waste material as primary ingredients and is biodegradable; that is suitable for use on water and on land in a wide variety of forms; that is fire retardant; that incorporates a manufacturing process resulting in a finished product of low embodied energy; and results in a sorbent that is uncommonly simple, inexpensive, and effective. The improved sorbent also provides three options for disposal when the sorbent is full of oil. The first option allows extraction of absorbed oil by simple compression that results in a 70% recovery of oil without contamination by water. The used sorbent can be reused repeatedly afterward. A second option allows a used sorbent that, although flame resistant in its unused state, can be burned as fuel to recover 100% of energy with the sorbent contributing only 1% ash.

Abstract: There is provided a process for the liquid phase synthesis of ethylbenzene with a zeolite designated MCM-49. The process involves the alkylation of benzene with ethylene under liquid phase conditions.

Abstract: Multimetal oxide compositions which comprise, as basic constituents, the elements Mo, V, W, Cu and Ni in oxidic form in certain molar ratios, and the preparation of these multimetal oxide compositions, and their use as catalysts for the gas-phase catalytical oxidation of acrolein to acrylic acid.

Abstract: The conversion of normal olefins such as n-butylenes can be converted to branched olefin species such as isobutylene by skeletal isomerization over zeolite-based catalysts having pore sizes of at least about 4.5 Angstroms and a pore structure characterized by intersecting 10-MR and 8 MR channels. The zeolite-based catalysts have sufficient acidity to catalyze the skeletal isomerization of normal olefins. The catalysts can be used to produce isoolefins for reaction with alcohols in integrated processes to produce alkyl tertiary alkyl ethers such as MTBE.

Abstract: This invention deals with viscosity improvers which are obtained through the use of a mixed catalyst system comprising a primary and/or secondary organo halide and a Lewis acid catalyst.

Abstract: The invention is directed to a method for enhancing the catalytic effectiveness of noble metal catalysts to reduce NO.sub.x and to oxidize hydrocarbons, which comprises: providing a solution of an organo noble metal compound dissolved in an organic solvent; impregnating a support material, preferably comprising at least 50% by weight .gamma.-alumina, with the solution; and heating the impregnated support material to evaporate the solvent and eliminate the organo group leaving the coated support material with the noble metal.

Abstract: A sorbent capable of removing trace amounts of oxygen (ppt) from a gas stream at a high temperature above 200.degree. C. comprising a porous alumina silicate support such as zeolite containing from 1 to 10 percent by weight of ion exchanged transition metal such as copper or cobalt ions and 0.05 to 1.0 percent by weight of an activator selected from a platinum group metal such as platinum. The activation temperature, oxygen sorption and reducibility are all improved by the presence of the platinum activator.

Abstract: The present invention is a synthesis, product and process for activated carbon and preferably carbon molecular sieve separation of air to produce a nitrogen product wherein a carbon is partially pyrolyzed, impregnated with a transition metal salt and further pyrolyzed to develop enhanced microporosity. The resulting microporous carbon can then be activated with carbon dioxide or steam and then pore-sized by cracking of hydrocarbons on the carbon to produce a carbon molecular sieve.