Basf Corporation

Engelhard Corporation

Basf Se Corporation

Basf Catalysts LLC

Howard Furbeck

Pascaline Tran

Gerald Stephen Koermer

Gerard D Lapadula

Ahmad Moini

James M Chen

Xinsheng Liu

Christopher R Castellano

Steven Jeffrey Schmieg

Goetz-Peter Schindler

Richard J Blint

Oliver Seel

Soo Yin Chin

Godwind Tafara Peter Mabande

Burkhard Rabe

Dieter Harms

Pascaline Harrison Tran

Francis S Romanski

The present disclosure provides an AgBi catalyst over alumina suitable for performing hydrocarbon selective catalytic reduction (HC-SCR).

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The invention relates to a catalyst comprising a monolith composed of a catalytically inert material with low BET surface area and a catalyst layer which has been applied to the monolith and comprises, on an oxidic support material, at least one noble metal selected from the group consisting of the noble metals of group VIII of the Periodic Table of the Elements, optionally tin and/or rhenium, and optionally further metals, wherein the thickness of the catalyst layer is 5 to 500 micrometers.

Monolith catalyst and use thereof

Catalysts, systems and methods are described to reduce NOemissions of an internal combustion engine. In one embodiment, an emissions treatment system for an exhaust stream is provided having a catalyst comprising silver on a particulate alumina support, the silver having a diameter of less than about 20 nm. Methods of manufacturing catalysts are described in which ionic silver is impregnated on particulate hydroxylated alumina particles.

Catalysts, systems and methods are described to reduce NOemissions of an internal combustion engine. In one embodiment, an emissions treatment system for an exhaust stream is provided having a catalyst comprising silver and a platinum group metal on a particulate alumina support, the atomic fraction of the platinum group metal being less than or equal to about 0.25. Methods of manufacturing catalysts are described in which silver is impregnated on alumina particles.

Catalysts, systems and methods are described to reduce NOemissions of an internal combustion engine. In one embodiment, an emissions treatment system for an exhaust stream is provided having an SCR catalyst comprising silver tungstate on an alumina support. The emissions treatment system may be used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines. An emissions treatment system may further comprise an injection device operative to dispense a hydrocarbon reducing agent upstream of the catalyst.

Catalysts, systems and methods to reduce NOX in an exhaust gas stream

A catalyst for the oxidation of volatile organic compounds and carbon monoxide comprising manganese and alumina, such catalyst having been impregnated with a phosphorus compound. The presence of the phosphorus compound results in a significant oxidative conversion of both the volatile organic compounds and the carbon monoxide. The catalyst is especially useful for treating gaseous streams that emanate from industrial sources, such as wood pulp manufacturing plants. The manganese portion of the catalyst is preferably comprised of manganese compounds comprising a defect non-stoichiometric manganese oxide of the type &#x3b2;-MnO, wherein x has the value of 0.1&#x2266;x&#x2266;0.25 in respect to about 80 to about 95% of all manganese atoms, and manganese aluminate in respect to the balance of the manganese atoms. The alumina portion of the catalyst is preferably comprised of high temperature forms of alumina of the type comprising &#x3b1;-AlOand (&#x3b1;+&#x3b4;+&#x3b8;)-AlO.

Manganese-based oxidation catalyst

A stabilized metal promoted aluminosilicate zeolite, useful in the selective catalytic reduction of nitrogen oxides with ammonia, having a silica to alumina mole ratio of at least 8 and less than 30 and an FT-IR absorption peak at 3781 plus or minus 2 cmwhich stabilizes the zeolite against further dealumination such as under oxidizing and harsh hydrothermal conditions.

The present invention is directed to a metal-promoted zeolite beta catalyst useful in the selective catalytic reduction of nitrogen oxides with ammonia in which the zeolite beta is pre-treated so as to provide the zeolite with improved hydrothermal stability. The stabilized beta zeolite is provided by incorporating into the zeolite structure non-framework aluminum oxide chains. The aluminum oxide chains can be incorporated into the zeolite structure by a unique steaming regimen or by treatment with rare earth metals, such as cerium. The treatment process is unlike well-known methods of dealuminizing zeolites for the purpose of increasing the silica to alumina ratio. In the present invention, the non-framework aluminum oxide is characterized by FT-IR by a peak at 3781&#xb1;2 cm, which when present, stabilizes the zeolite against further dealumination such as under oxidizing and harsh hydrothermal conditions.

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Hamilton, NJ, United States of America

Howard Furbeck