A catalyst for wastewater treatment is disclosed. The catalyst includes a porous carrier, iron oxide impregnated into the pores of the porous carrier, and platinum impregnated into the pores and mixed with the iron oxide in the pores. Also disclosed are a method for preparing the catalyst and a method for wastewater treatment using the catalyst.

A process for the synthesis of linear paraffinic hydrocarbons from a feed of carbon monoxide and dihydrogen in the presence of a catalyst of a mesoporous oxide matrix and a content by weight of the element cobalt of 0.5% to 60%, wherein the catalyst is prepared by a) mixing, in an aqueous or hydro-organic solvent, a molecular precursor containing cobalt and a molecular precursor of the mesoporous oxide matrix containing element X of silicon, aluminium, titanium, zirconium and or cerium; b) aerosol spray drying the mixture to form spherical liquid droplets; c) drying to obtain solid particles at a temperature of 10 C. to 300 C.; d) activation by a reduction treatment to form nanoparticles of cobalt with an oxidation state of 0.

A supported core-shell bimetallic catalyst with high selectivity for propane dehydrogenation, containing platinum (Pt) as active species, 3d transition metals (Fe, Co and Ni) as promoters and SBA-15 as support. The addition of 3d metals and the formation of Pt3d alloys in subsurface result in a core-shell bimetallic catalyst which promotes the propene selectivity by decreasing the d-band center of surface Pt atoms and facilitating the desorption of propene on Pt. In another aspect, the reduced usage of Pt is achieved with the addition of 3d transition metals as well as the increased utilization of Pt atoms. The catalyst can be effectively used as a catalyst for the preparation of propene by propane dehydrogenation and 85% of propene selectivity can be achieved in propane dehydrogenation.

A structured catalyst for steam reforming of the present disclosure is used for producing reformed gas containing hydrogen from a reforming raw material containing hydrocarbon, and includes a support having a porous structure constituted of a zeolite-type compound, and at least one catalytic substance present inside the support. The support includes channels connecting with each other, and the catalytic substance is metal nanoparticles and present at least in the channels of the support.

To provide a structured catalyst for catalytic cracking or hydrodesulfurization that suppresses decline in catalytic activity, achieves efficient catalytic cracking, and allows simple and stable obtaining of a substance to be modified. The structured catalyst for catalytic cracking or hydrodesulfurization (1) includes a support (10) of a porous structure composed of a zeolite-type compound and at least one type of metal oxide nanoparticles (20) present in the support (10), in which the support (10) has channels (11) that connect with each other, the metal oxide nanoparticles (20) are present at least in the channels (11) of the support (10), and the metal oxide nanoparticles (20) are composed of a material containing any one or two more of the oxides of Fe, Al, Zn, Zr, Cu, Co, Ni, Ce, Nb, Ti, Mo, V, Cr, Pd, and Ru.

A process for the synthesis of linear paraffinic hydrocarbons from a feed comprising carbon monoxide and dihydrogen in the presence of a mesoporous oxide matrix and cobalt prepared by mixing, at least one molecular precursor of cobalt and at least one colloidal precursor of mesoporous oxide matrix and by silicon, aluminium, titanium, zirconium, cerium or mixtures thereof, dissolved in aqueous or hydro-organic solvent; spray drying the mixture obtained to form spherical liquid droplets; drying the droplets to obtain solid particles activating the solid particles by reduction to form nanoparticles of cobalt with an oxidation state of 0.

The present invention relates to an olefin metathesis reaction catalyst where rhenium (Re) oxide or molybdenum (Mo) oxide is supported, as a catalyst main component, on a surface-modified mesoporous silica or mesoporous alumina support, and a preparation method therefor. The olefin metathesis reaction catalyst of the present invention allows highly efficient metathesis of long-chain unsaturated hydrocarbons having at least eight carbons at a low temperature of 150 C. or lower. The catalyst can be separated readily from reaction solution, regenerated at a low temperature of 400 C. or lower by removing toxins accumulated on it during the metathesis reaction, and used repeatedly in metathesis reaction many times, thereby being made good use in commercial olefin metathesis processes.

A structured catalyst for steam reforming of the present disclosure is used for producing reformed gas containing hydrogen from a reforming raw material containing hydrocarbon, and includes a support having a porous structure constituted of a zeolite-type compound, and at least one catalytic substance present inside the support. The support includes channels connecting with each other, and the catalytic substance is metal nanoparticles and present at least in the channels of the support.

A monolithic catalyst, including cobalt, a metal matrix, a molecular sieve membrane, and an additive. The metal matrix is silver, gold, copper, platinum, titanium, molybdenum, iron, tin, or an alloy thereof. The molecular sieve membrane is mesoporous silica SBA-16 which is disposed on the surface of the metal matrix and is a carrier of the active component and the additive. The thickness of the carrier is between 26 and 67 m. The additive is lanthanum, zirconium, cerium, rhodium, platinum, rhenium, ruthenium, titanium, magnesium, calcium, strontium, or a mixture thereof. A method for preparing the monolithic catalyst is also provided.

The invention relates to templated active material, including those deriving order from organic and/or inorganic templating agents. The invention also relates to methods for producing templated active material, and to active material produced by such methods, and the use of such templated active material for producing oxygenate.