An article for joule heating is described, including a three-dimensional substrate on and/or in which a pyrolyzate of a phenolic resin or polymer forms an electrically conductive carbon network. Such articles may be incorporated in structured materials applications, which may include support, sorbent, and or catalyst components. Also described are methods of fabricating such articles and structured materials, and apparatus comprising same, and methods of use of such articles and structured materials and apparatus for conducting material transformation processes requiring input of heat for their performance, such as CO.sub.2 adsorption, methane pyrolysis for hydrogen and carbon production, hydrogen-assisted conversion of CO.sub.2 to hydrocarbons, including catalytic conversion of CO.sub.2 to olefins, catalytic conversion of CO.sub.2 to propane (liquefied petroleum gas), and catalytic conversion of CO.sub.2 to renewable natural gas, reverse water gas shift reaction, steam ethane cracking, propane cracking, steam methane reforming, and dry methane reforming.

A heterogeneous catalyst article having at least one combination of a first molecular sieve having a medium pore, large pore, or meso-pore crystal structure and optionally containing a first metal, and a second molecular sieve having a small pore crystal structure and optionally containing a second metal, and a monolith substrate onto or within which said catalytic component is incorporated, wherein the combination of the first and second molecular sieves is a blend, a plurality of layers, and/or a plurality of zones.

Catalyst compositions and methods of preparation comprising: exchanging a rare earth element into a molecular sieve; incorporating a promoter metal into the molecular sieve; wherein the rare earth element exchanging step and the promoter metal incorporation step are performed as separate steps.

The present invention relates to a method for making a catalytic composition and, in particular, to a composition for treating a NOx-containing exhaust gas. The composition comprises a small-pore zeolite having a SAR of 9-30 and one or more rare earth metals. The method achieves the introduction of higher levels of rare earth (RE) metals into a zeolite than can be achieved with conventional wash-coating approaches.

A catalyst composition includes a heterobimetallic zeolite characterized by a chabazite structure loaded with copper ions and at least one trivalent metal ion other than Al.sup.3+. The catalyst composition decreases NO.sub.x emissions in diesel exhaust and is suitable for operation in a catalytic converter.

The present invention relates to a zeolite comprising zinc and platinum, and to a catalyst containing said zeolites.

The present invention discloses a crystalline aluminosilicate small-pore zeolite having a maximum ring size of eight tetrahedral atoms, wherein the zeolite comprises copper, wherein the Cu:Al atomic ratio is between 0.12 and 0.55; and a metal M1, which is calcium, magnesium, or strontium, wherein the M1:Cu atomic ratio is between 0.05 and 0.95; and a metal M2, wherein M2 is selected from magnesium, calcium, barium, strontium, yttrium, titanium, zirconium, niobium, iron, zinc, silver, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and mixtures thereof, and wherein M1 and M2 are different from one another, and wherein the M2:Cu atomic ratio is between 0.05 and 0.80; and wherein the sum of the atomic ratios of copper, metal M1 and metal M2 to aluminum, (Cu+M1+M2):Al, is between 0.20 and 0.80; and wherein the zeolite comprises at least 2.5 wt.-% of copper, calculated as CuO and based on the total weight of the zeolite. Catalyst substrate monoliths comprising the crystalline aluminosilicate zeolite are also disclosed. These catalyst substrate monoliths can be used in a process for the removal of nitrogen oxides from combustion exhaust gases, and they can be part of emissions treatment systems.

An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, described is an oxidation catalyst composite including a first oxidation component comprising a first refractory metal oxide support, palladium (Pd) and platinum (Pt); a NO.sub.x storage component comprising one or more of alumina, silica, titania, ceria, or manganese; and a second oxidation component comprising a second refractory metal oxide, a zeolite, and Pt. The oxidation catalyst composite is sulfur tolerant, adsorbs NO.sub.x and thermally releases the stored NO.sub.x at temperature less than 350 C.

An article for joule heating is described, including a three-dimensional substrate on and/or in which a pyrolyzate of a phenolic resin or polymer forms an electrically conductive carbon network. Such articles may be incorporated in structured materials applications, which may include support, sorbent, and or catalyst components. Also described are methods of fabricating such articles and structured materials, and apparatus comprising same, and methods of use of such articles and structured materials and apparatus for conducting material transformation processes requiring input of heat for their performance, such as CO.sub.2 adsorption, methane pyrolysis for hydrogen and carbon production, hydrogen-assisted conversion of CO.sub.2 to hydrocarbons, including catalytic conversion of CO.sub.2 to olefins, catalytic conversion of CO.sub.2 to propane (liquefied petroleum gas), and catalytic conversion of CO.sub.2 to renewable natural gas, reverse water gas shift reaction, steam ethane cracking, propane cracking, steam methane reforming, and dry methane reforming.

This invention relates to gallium zeolites. This invention also relates to systems and methods utilizing the gallium zeolites.