Basf Corporation

Basf Mobile Emissions Catalysts LLC

Engelhard Corporation

Basf Se Corporation

Basf Catalysts LLC

Stanley Allen Roth

Yuejin Li

Olga Gerlach

Shiang Sung

Andreas Sundermann

Xinyi Wei

Susanne Stiebels

Wen-Mei Xue

Jeff H Yang

Kenneth Edwin Voss

Torsten Neubauer

Xiaolai Zheng

Alfred Helmut Punke

Claudia Zabel

Joseph Charles Dettling

Gerd Grubert

Michel Deeba

Joseph Allan Patchett

Marcus Hilgendorff

Torsten W Müller-Stach

Ahmad Moini

Jeffrey Barmont Hoke

Attilio Siani

Haiyang Zhu

Gerald Stephen Koermer

Ivor Bull

Matthew Tyler Caudle

Jaya L Mohanan

William Michael Jaglowski

Gary A Gramiccioni

Karifala Dumbuya

Sandip D Shah

Subramanian Prasad

Patrick William McCanty

M Shahjahan Kazi

Ruediger Wolff

Markus Kögel

Mahmoud Yassine

Emily Schulman

Torsten Wolfgang Mueller-Stach

Chung-Zong Wan

Xiaofan Yang

Gary Wayne Rice

Sanath V Kumar

Barbara K Slawski

Qi Fu

Xiaoming Xu

Claudia Wendt

Yiu Kwan Lui

Oleg Ilinich

Ramesh M Kakwani

Andreas Richard Munding

Helke Doering

Fabien A Rioult

Alexander Gorel

Shlang Sung

Martin Deiterle

Limiao An

Ivan Petrovic

Robin M Huff

Torsten Muller-Stach

Sandip Shah

Alfred Punke

Alfred H Punke

W Torsten MÜLLER-Stach

Atilio Siani

Torsten W Mueller-Stach

Torsten Müller-Stach

Martin Dieterle

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 SiOand XOin 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.

Preparation of SCR catalyst comprising Cu and Fe-exchanged zeolite, said catalyst, system comprising said catalyst and exhaust gas treatment using such

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 NOstorage 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 NOand thermally releases the stored NOat temperature less than 350° C.

Diesel oxidation catalyst

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 comprising SiOand XOin its framework structure, wherein X is a trivalent element; subjecting the zeolitic material to an ion exchange procedure with one or more copper (II) containing compounds; preparing a slurry comprising the Cu ion-exchanged zeolitic material, one or more iron (II) and/or iron (III) 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.

An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, an oxidation catalyst composite including a first washcoat layer comprising a Pt component and a Pd component, and a second washcoat layer including a refractory metal oxide support containing manganese, a zeolite, and a platinum component is described.

Manganese-containing diesel oxidation catalyst

The present disclosure provides a catalyst composition comprising a catalytically active platinum group metal (PGM) component disposed on or impregnated in a magnetic ferrite support material, wherein the magnetic ferrite support material is capable of inductive heating in response to an applied alternating electromagnetic field. Further provided are catalyst articles comprising such compositions, and components comprising such catalyst articles, and further comprising a conductor associated with the catalyst article for receiving current and generating an alternating electromagnetic field in response thereto, wherein the conductor is positioned such that the generated alternating electromagnetic field is applied to at least a portion of the catalyst composition, inductively heating the catalyst composition directly at the catalytic site. Also provided are exhaust gas treatment systems including such components and/or articles, and methods of treating emissions utilizing such components and systems.

Catalyst with magnetic ferrite support material

The present disclosure provides catalyst compositions for NOx conversion and catalytic articles incorporating such catalyst compositions. Certain catalyst compositions include a zeolite with a silica-to-alumina ratio from 5 to 20 and sufficient Cu exchanged into cation sites of the zeolite such that the zeolite has a Cu/Al ratio of 0.1 to 0.5 and a CuO loading of 1 to 15 wt. %; and a copper trapping component in a concentration in the range of 1 to 20 wt. %, the copper trapping component including a plurality of particles having a particle size of about 0.5 to 20 microns. Certain catalyst compositions include, as the copper trapping component, alumina present as a plurality of alumina particles with a Dparticle size distribution in the range of 0.5 microns to 20 microns.

Catalytic washcoat with added alumina for NOx abatement

The present disclosure provides a method of forming a selective catalytic reduction (SCR) catalyst, the method including receiving a first iron-promoted zeolite having a first iron content, and treating the iron-promoted zeolite with additional iron in an ion exchange step to form a second iron-promoted zeolite with a second iron content, the second iron content being higher than the first iron content. A selective catalytic reduction (SCR) catalyst composition including an ironpromoted zeolite having at least about 6 weight percent iron, based on total weight of the ironpromoted zeolite, wherein the iron content of the zeolite was added to the zeolite in at least two separate steps is also provided herein.

Iron-promoted zeolite and catalyst made therefrom

An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, an oxidation catalyst composite including a first washcoat comprising a zeolite, Pt, and first refractory metal oxide support containing manganese, a second washcoat comprising a second refractory metal oxide support, a Pt component and a Pd component, and a third washcoat comprising palladium and a rare earth oxide component is described.

The present disclosure relates to copper-containing molecular sieve catalysts that are highly suitable for the treatment of exhaust containing NOx pollutants. The copper-containing molecular sieve catalysts contain ion-exchanged copper as Cuand Cu(OH), and DRIFT spectroscopy of the catalyst exhibits perturbed T-O-T vibrational peaks corresponding to the Cuand Cu(OH). In spectra taken of the catalytic materials, a ratio of the Cuto the Cu(OH)peak integration areas preferably can be &#x2265;1. The copper-containing molecular sieve catalysts are aging stable such that the peak integration area percentage of the Cupeak (area Cu/(area Cu+area Cu(OH))) increases by &#x2264;20% upon aging at 800&#xb0; C. for 16 hours in the presence of 10% HO/air, compared to the fresh state.

Selective catalytic reduction articles and systems

A nitrous oxide (NO) removal catalyst composite is provided, comprising a NO removal catalytic material on a substrate, the catalytic material comprising a rhodium (Rh) component supported on a ceria-based support, wherein the catalyst composite has a H-consumption peak of about 100&#xb0; C. or less as measured by hydrogen temperature-programmed reduction (H-TPR). Methods of making and using the same are also provided.

Nitrous oxide removal catalysts for exhaust systems

The present invention provides an oxidation catalyst composition suitable for at least partial conversion of gaseous hydrocarbon emissions, e.g., methane. The oxidation catalyst composition includes at least one platinum group metal (PGM) component supported onto a porous zirconia-containing material that provides an effect on hydrocarbon conversion activity. The porous zirconia-containing material is at least 90% by weight in the monoclinic phase. Furthermore, the PGM component can comprise at least one platinum group metal in the form of colloidally deposited nanoparticles. The oxidation catalyst composition can be used in the treatment of emissions from lean compressed natural gas engines.

Oxidation catalyst for lean compressed natural gas engine

Emissions treatment systems of combustion engines are provided, which comprise a platinum-containing catalyst that is degreened during production, which is before exposure to operating conditions of a vehicle having a diesel engine. The platinum-containing catalyst, in the form of a platinum component on a high surface area refractory metal oxide support, exhibits a vibration frequency of about 2085 to about 2105 cmas measured by CO-DRIFTS. Such catalytic material is essentially-free of platinum oxide species found at greater than about 2110 cmas measured by CO-DRIFTS. Such catalysts can provide excellent and consistent conversion of nitrogen oxide (NO) to nitrogen dioxide (NO).

Platinum-containing catalysts for combustion engines

Certain selective catalytic reduction (SCR) articles, systems and methods provide for high NOx conversion while at the same time low NO formation. The articles, systems and methods are suitable for instance for the treatment of exhaust gas of diesel engines. Certain articles have zoned coatings containing copper-containing molecular sieves disposed thereon, where for example a concentration of catalytic copper in an upstream zone is lower than the concentration of catalytic copper in a downstream zone.

Certain selective catalytic reduction (SCR) articles, systems and methods provide for high NOx conversion while at the same time low NO formation. The articles, systems and methods are suitable for instance for the treatment of exhaust gas of diesel engines. Certain articles have zoned coatings disposed thereon, for example, a zoned coating comprising an upstream zone comprising a coating layer comprising a steam-activated iron-containing molecular sieve and a downstream zone comprising a coating layer comprising a high copper-containing molecular sieve.

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Yardley, PA, United States of America

Stanley Allen Roth