Porous, extruded titania-based materials further comprising one or more acids and/or prepared using one or more acids, Fischer-tropsch catalysts comprising them, uses of the foregoing, processes for making and using the same and products obtained from such processes.

The present invention relates to a method for producing an olefin with a high yield for a short reaction time in a dehydration reaction of an aliphatic alcohol. The present invention provides a method for producing an olefin, including subjecting an aliphatic alcohol having 6 or more carbon atoms to a dehydration reaction in the presence of an aluminum oxide catalyst, wherein an average pore diameter of the aluminum oxide catalyst is 12.5 nm or more and 20.0 nm or less.

A supported oxidative coupling of methane (OCM) catalyst comprising a support and an OCM catalytic composition characterized by the general formula A.sub.aZ.sub.bE.sub.cD.sub.dO.sub.x; wherein A is an alkaline earth metal; wherein Z is a first rare earth element; wherein E is a second rare earth element; wherein D is a redox agent or a third rare earth element; wherein the first rare earth element, the second rare earth element, and the third rare earth element, when present, are not the same; wherein a is 1.0; wherein b is from about 0.1 to about 10.0; wherein c is from about 0.1 to about 10.0; wherein d is from about 0 to about 10.0; and wherein x balances the oxidation states.

Disclosed herein are base metal catalyst devices for removing ozone, volatile organic compounds, and other pollutants from an air flow stream. A catalyst device includes a housing, a solid substrate disposed within the housing, and a catalyst layer disposed on the substrate. The catalyst layer includes a first base metal catalyst at a first mass percent, a second base metal catalyst at a second mass percent, and a support material impregnated with at least one of the first base metal catalyst or the second base metal catalyst.

A process for preparing a molding comprising zinc and a titanium-containing zeolitic material having framework type MWW, comprising (i) providing a molding comprising a titanium-containing zeolitic material having framework type MWW; (ii) preparing an aqueous suspension comprising a zinc source and the molding comprising a titanium-containing zeolitic material having framework type MWW prepared in (i); (iii) heating the aqueous suspension prepared in (ii) under autogenous pressure to a temperature of the liquid phase of the aqueous suspension in the range of from 100 to 200 C., obtaining an aqueous suspension comprising a molding comprising zinc and a titanium-containing zeolitic material having framework type MWW; (iv) separating the molding comprising zinc and a titanium-containing zeolitic material having framework type MWW from the liquid phase of the suspension obtained in (iii).

An improved method of operating a conventional ebullated bed process for the hydroconversion of heavy hydrocarbon feedstocks so as to provide for low or reduced sediment content in the conversion product without the loss of hydrodesulfurization function.

A catalyst composition for the production of carbon nanotubes (CNT) with controlled morphology is disclosed. The catalyst is represented by formula [(M.sub.xMn.sub.y)Mo.sub.z][binary metal oxide].sub.(100(x+y+z)), where x is in the range 1 to 25 wt %, y is in the range 0.1 to 20 wt %, and z is in the range 0.0 to 10 wt %. Further M represents either iron or cobalt or nickel along with manganese and molybdenum supported on binary metal oxides comprising of boron, magnesium, aluminum, silicon, calcium, barium, and combination thereof. The CNT morphology can be tailor-made with the plural combination of nature of metal and promoters in appropriate proportions. The process yields the CNT with bulk density in the range of 0.01 to 0.20 g/cc, diameter in the range of 5 to 30 nm and purity greater than 95 wt %.

A preparation method for a propylene epoxidation catalyst: pre-hydrolyzing a silicon source, adding a titanium source and reacting to form a sol, atomizing the sol and then spraying it into liquid ammonia for molding, implementing pore broadening, and performing drying, calcination, and silanization treatment to obtain a TiSiO.sub.2 composite oxide catalyst. The present catalyst can be used in the chemical process of preparing propylene oxide by epoxidation of propylene, the average propylene oxide selectivity being up to 97.5%, having prospects for industrial application.

A carbon-coated transition metal nanocomposite material includes carbon-coated transition metal particles having a core-shell structure. The shell layer of the core-shell structure is a graphitized carbon layer doped with oxygen and/or nitrogen, and the core of the core-shell structure is a transition metal nanoparticle. The nanocomposite material has a structure rich in mesopores, is an adsorption/catalyst material with excellent performance, can be used for catalyzing various hydrogenation reduction reactions, or used as a catalytic-oxidation catalyst useful for the treatment of volatile organic compounds in industrial exhaust gases.

A porous body is provided with enhanced fluid transport properties that is capable of performing or facilitating separations, or performing reactions and/or providing areas for such separations or reactions to take place. The porous body includes at least 80 percent alpha alumina and has a pore volume from 0.3 mL/g to 1.2 mL/g and a surface area from 0.3 m.sup.2/g to 3.0 m.sup.2/g. The porous body further includes a pore architecture that provides at least one of a tortuosity of 7.0 or less, a constriction of 4.0 or less and a permeability of 30 mdarcys or greater. The porous body can be used in a wide variety of applications such as, for example, as a filter, as a membrane or as a catalyst carrier.