BASF CORPORATION

Disclosed herein is a catalyst component suitable for petroleum refining applications (e.g., fluid catalytic cracking and hydrocracking) that includes a MSB zeolite structure (e.g., MCM-68) and a non-zeolitic matrix. The first component may be combined with additional components into a catalyst composition. Also disclosed herein are methods of preparing the catalyst component and/or catalyst compositions as well as method of using the catalyst component and/or catalyst composition.

The present disclosure relates to zeolite catalysts having an aging durability and improved catalytic activity. For example, the zeolite catalysts comprise a specific aluminum distribution, e.g., the positioning of two framework aluminum atoms in the zeolite structure at third-nearest-neighbor (3NN) relative positions in the framework. The zeolite catalysts have two tetrahedrally coordinated AI sites that are separated by two tetrahedrally coordinated Si sites. The disclosure is also directed to process and methods for their characterization and usage.

A method of preparing a calcined hydrogenolysis/hydrogenation catalyst includes mixing a copper-containing material, manganese-containing material, sodium aluminate, and water to obtain an aqueous slurry; contacting the aqueous slurry with a caustic material to form a precipitate in a caustic aqueous slurry; removing the precipitate from the caustic aqueous slurry; and removing residual water from the precipitate to form a dried precipitate; calcining the dried precipitate to form the calcined hydrogenolysis/hydrogenation catalyst exhibiting a Brunauer-Emmett-Teller (“BET”) surface area of about 5 m 2 /g to about 75 m 2 /g. The calcined hydrogenolysis/hydrogenation catalyst may include a spinel structure crystallite size of about 15 nm or less. The calcined hydrogenolysis/hydrogenation catalyst may include a tenorite crystallite size of about 20 nm to 30 nm.

A catalyst for the treatment of an exhaust gas stream containing one or more of formaldehyde, nitrogen oxide (NO), and hydrocarbons, the catalyst comprising a first washcoat layer comprising Mn, and a substrate, wherein the substrate has an inlet end, and an outlet end, wherein the catalyst further comprises one or more platinum group metals comprising Pt, Pd, or Pt and Pd, wherein the one or more platinum group metals are at least in part contained in one or more of: (a) the first washcoat layer, and (b) an optional second washcoat layer, or (c) optional second and third washcoat layers, wherein the loading of Mn in the catalyst, calculated as the element, is in the range of from 0.04 to 0.9 g/in3.

A support comprising kaolin clay, wherein the kaolin clay comprises less than or equal to about 0.6% by weight of iron, based on total weight of the support.

The present disclosure relates to a process for preparing a catalyst for the selective catalytic reduction of nitrogen oxide. The process includes providing a zeolitic material including SiO 2 and X 2 O 3 in its framework structure, wherein X is a trivalent element; subjecting the zeolitic material to an ion exchange procedure with one or more iron (II) and/or iron (III) containing compounds; preparing a slurry including the Fe ion-exchanged zeolitic material, one or more copper (II) containing compounds, and a solvent system; providing a substrate and coating the slurry onto the substrate; and calcining the coated substrate. Furthermore, the present disclosure relates to a catalyst for the selective catalytic reduction of nitrogen oxide, an exhaust gas treatment system for the treatment of exhaust gas exiting from an internal combustion engine, and a method for the selective catalytic reduction of nitrogen oxides.

Disclosed herein is a chromium oxide catalyst composition having reduced levels of chromium (VI), methods of making a chromium oxide catalyst composition and system, and illustrative uses of the chromium oxide catalyst composition and system. The catalyst disclosed may be a gel and may comprise chromium(III) oxide and chromium(VI) oxide at an amount of about 10,000 ppm or less based on total chromium oxide contents in the chromium oxide catalyst composition.

A catalytic article comprising a substrate; a first zone coated with a first catalytic layer comprising platinum supported on ceria-zirconia mixed oxide or ceria-alumina composite or both; and rhodium supported on ceria-zirconia mixed oxide or ceria-alumina composite or both; and a second zone coated with a second catalytic layer comprising palladium supported on ceria-zirconia mixed oxide, alumina, ceria-aluminia or any combination thereof; and rhodium supported on ceria-zirconia mixed oxide alumina, ceria-alumina composite or any combination thereof, wherein the first zone occupies a flow-in end portion of the substrate and the second zone occupies a flow-out end portion of the substrate. The present invention also provides a process for the preparation of the catalytic article, an exhaust gas treatment system for internal combustion engines comprising the catalytic article according to the present invention, and a method of treating a gaseous exhaust stream.

Disclosed herein are oxidation catalysts, oxidation catalyst composites, systems, and methods for treating exhaust gas streams to control the emission of hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NO x ) in the exhaust gas stream of internal combustion engines. The oxidation catalysts, oxidation catalyst composites, systems and methods of treating comprise a ternary alloy nanoparticle catalyst; the ternary alloy nanoparticle catalyst comprises a platinum group metal alloyed with at least two transition metal elements.

Disclosed herein are chromium-free catalyst compositions having an alumina support and a copper compound on the alumina support. The catalyst composition may further include a promoter. Further disclosed are methods of preparing such catalyst compositions and methods of use thereof.