Catalyst for oxygen storage capacity applications that include a zinc doped manganese-iron spinel mixed oxide material. The zinc doped manganese-iron spinel mixed oxide material may be synthesized by a co-precipitation method using a precipitation agent such as sodium carbonate and exhibits a high oxygen storage capacity.

The present invention relates to a catalyst for oxidative dehydrogenation and a method of preparing the same. More particularly, the present invention provides a catalyst for oxidative dehydrogenation having a porous structure which may easily control heat generation due to high-temperature and high-pressure reaction conditions and side reaction due to the porous structure and thus exhibits superior product selectivity, and a method of preparing the catalyst.

A Fischer-Tropsch process for synthesizing hydrocarbons, by bringing a catalyst comprising a support and an active phase comprising a Group VIII metal into contact with a feedstock comprising synthesis gas, said catalyst being prepared according to the following steps: a) a porous support is provided; b) an organic compound containing oxygen and/or nitrogen is added to the porous support; c) a step of bringing said porous support into contact with a solution containing a salt of a precursor of the phase comprising a Group VIII metal is carried out; d) the porous support obtained at the end of step c) is dried;
characterized in that step b) is carried out by bringing together said porous support and said organic compound under conditions of temperature, pressure and duration such that a fraction of said organic compound is transferred in the gaseous state to the porous support.

A bifunctional catalyst for example for conversion of oxygenates, said bifunctional catalyst comprising zeolite, alumina binder, Zn and P, wherein Zn is present at least partly as ZnAl.sub.2O.sub.4.

A filter includes resin particles and photocatalyst particles having absorption at wavelengths of 450 nm and 750 nm in the visible absorption spectrum. The photocatalyst particles have a high photocatalytic function and are present on the surface of the resin particle. The filter is air permeable, transmits visible light, and has high deodorizing performance.

The present disclosure related generally to a high-temperature water-gas shift catalyst composition comprising: a ZnO phase, present in the composition in an amount of 5-70 wt. %; a zinc-aluminum spinel phase, present in the composition in an amount of 30-95 wt. %; wherein the molar ratio of Zn atoms to Al atoms in the catalyst composition is at least 1:1.

Process for the catalytic hydrogenation of organic carbonyl compounds containing at least one functional group belonging to the group of aldehydes, ketones, esters and carboxylic acids, whereby said at least one functional group is converted to an alcohol by contacting said carbonyl compound with hydrogen and a hydrogenation catalyst at elevated temperature and pressure as well as a catalyst therefore and a process for producing said catalyst.

Provided are: a complex oxide that exhibits high redox ability even at low temperatures, has excellent heat resistance, and stably retains these characteristics even on repeated oxidation and reduction at high temperature; a method for producing the same; and an exhaust gas purification catalyst. The inventive complex oxide contains more than 0 but no more than 20 parts by mass of Si, calculated as SiO.sub.2, per total 100 parts by mass of rare earth metal elements including Ce, calculated as oxides; and has a characteristic such that when it is subjected to temperature-programmed reduction (TPR) measurement in a 10% hydrogen-90% argon atmosphere at from 50° C. to 900° C. with the temperature increasing at a rate of 10° C./min, followed by oxidation treatment at 500° C. for 0.5 hours, and then temperature-programmed reduction measurement is performed again, its calculated reduction rate at and below 400° C. is at least 1.5%.

The present invention provides a production method for indene, comprising a dehydrogenation step of obtaining a reaction product containing indene by contacting a raw material composition containing indene with a dehydrogenation catalyst, wherein the dehydrogenation catalyst comprises a support containing aluminum, and a group 14 metal element and platinum supported on the support, a content of the platinum in the dehydrogenation catalyst is 0.6 to 2.5% by mass based on a whole amount of the dehydrogenation catalyst, and an atomic ratio of the group 14 metal element to the platinum in the dehydrogenation catalyst is 4.0 to 20.0.

An improved catalyst system is provided for the direct decomposition removal of NO.sub.x from an exhaust gas stream at temperatures between about 350° C. and about 600° C. that employs an (amorphous CuO.sub.x)/Co.sub.3O.sub.4 catalyst. The catalyst has an amorphous CuO.sub.x deposit on the surfaces of particles of Co.sub.3O.sub.4 spinel oxide. The catalyst is configured to reduce NO.sub.x to N.sub.2 without the presence of a reductant. The (amorphous CuO.sub.x)/Co.sub.3O.sub.4 catalyst is formed by the precipitation of the deposit from solution onto a suspension of Co.sub.3O.sub.4 spinel oxide particles. The catalyst system can be employed in a catalytic converter for the direct decomposition removal of NO.sub.x from an exhaust gas stream flowing at a temperature of less than or equal to about 500° C.