Matches 1 - 50 out of 260 1 2 3 4 5 6 >

AcclaimIP-ad

Match Document Document Title
US20120288427 Catalyzed Soot Filter With Layered Design  
Disclosed is a catalyzed soot filter with layered design wherein the first coating of the filter comprises an oxidation catalyst comprising platinum (Pt) and optionally palladium (Pd), wherein the...
US20120189518 DISORDERED MOLECULAR SIEVE SUPPORTS FOR THE SELECTIVE CATALYTIC REDUCTION OF NOx  
A catalyst for selective catalytic reduction of NOx having one or more transition metals selected from Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir, Pt, and mixtures...
US20150158019 PASSIVE NOX ADSORBER  
A passive NOx adsorber is disclosed. The passive NOx adsorber is effective to adsorb NOx at or below a low temperature and release the adsorbed NOx at temperatures above the low temperature. The...
US20130136676 ELECTROCHEMICAL CATALYSIS SYSTEM  
The present invention relates to the use, for the reduction of oxidizing contaminating entities of the NOx type, in particular NO2, present in a gas to be purified, of a catalytic system...
US20110120087 Apparatus with Catalyst for the Reduction of Nitrogen Dioxide (NO2) to Nitric Oxide (NO) by Chemical Means in a Diesel Catalytic Support  
In setting tighter emissions standards for nitrogen oxides, legislative bodies limit the amount of nitrogen dioxide (NO2) permitted in exhaust. The disclosed catalysts can be coated on a support...
US20110250112 PURIFICATION STRUCTURE INCLUDING A CATALYSIS SYSTEM SUPPORTED BY A ZIRCON IN REDUCED STATE  
The invention relates to a filtration structure, for filtering a gas coming from a diesel engine, which is laden with gaseous pollutants of the nitrogen oxide NOx type and with solid particles, of...
US20110097252 COMPOSITIONS BASED ON CERIUM OXIDE, ZIRCONIUM OXIDE AND, OPTIONALLY, ANOTHER RARE EARTH OXIDE, HAVING A SPECIFIC RAISED SURFACE AT 1100°C, METHOD FOR THE PRODUCTION AND USE THEREOF AS A CATALYST  
The inventive composition, according to a first embodiment, consists essentially of a cerium oxide and a zirconium oxide in an atomic ratio Ce/Zr of at least 1. According to a second embodiment,...
US20130052108 COMPOSITION CONTAINING OXIDES OF ZIRCONIUM, CERIUM AND ANOTHER RARE EARTH HAVING REDUCED MAXIMUM REDUCIBILITY TEMPERATURE, A PROCESS FOR PREPARATION AND USE THEREOF IN THE FIELD OF CATALYSIS  
A composition is described that includes oxides of zirconium, cerium and another rare earth different from cerium, having a cerium oxide content not exceeding 50 wt % and, after calcination at...
US20140037524 CATALYST FOR PURIFYING EXHAUST GAS  
Provided is a catalyst for purifying an exhaust gas, the catalyst excelling in catalytic performance and oxygen storage capacity. The catalyst for purifying an exhaust gas is a catalyst for...
US20150258537 EXHAUST GAS PURIFYING CATALYST  
To provide an exhaust as purifying catalyst where the NO purification ratio at a high temperature is improved. An exhaust gas purifying catalyst containing copper ion-exchanged zeolite having...
US20130142713 COMPOSITION CONTAINING OXIDES OF ZIRCONIUM, CERIUM AND AT LEAST ONE OTHER RARE EARTH AND HAVING A SPECIFIC POROSITY, METHOD FOR PREPARING SAME AND USE THEREOF IN CATALYSIS  
A composition is described that includes zirconium oxide, cerium oxide and yttrium oxide, or zirconium oxide, cerium oxide and at least two oxides of two rare earths different from cerium in a...
US20130164201 COMPOSITION BASED ON CERIUM, ZIRCONIUM AND TUNGSTEN, PREPARATION PROCESS AND USE IN CATALYSIS  
A composition based on cerium, zirconium and tungsten is described. The composition has a content expressed as an oxide, of which cerium is from 5% to 30% of the composition, tungsten is from 2%...
US20140072492 COMPOSITION BASED ON ZIRCONIUM OXIDE AND ON AT LEAST ONE OXIDE OF A RARE EARTH OTHER THAN CERIUM, HAVING A SPECIFIC POROSITY, PROCESSES FOR PREPARING SAME AND USE THEREOF IN CATALYSIS  
A composition of zirconium oxide and at least one oxide of a rare earth other than cerium is described. The zirconium oxide has a weight proportion of at least 50% and, after calcination at a...
US20100329954 HIGH SPECIFIC SURFACE AREA MIXED OXIDE OF CERIUM AND OF ANOTHER RARE EARTH, PREPARATION METHOD AND USE IN CATALYSIS  
The mixed oxide of the invention mainly consists of cerium oxide and of at least one oxide of another rare earth. It has a specific surface area of at least 20 m2/g after calcining at 1000° C. for...
US20110142737 SELECTIVE CATALYTIC REDUCTION OF NITROGEN OXIDES IN THE EXHAUST GAS OF DIESEL ENGINES  
A catalyst and a process for selective catalytic reduction of nitrogen oxides in diesel engine exhaust gases with ammonia or a compound decomposable to ammonia are described. The exhaust gas to be...
US20140044629 METHOD FOR TREATING A GAS CONTAINING NITROGEN OXIDES (NOx) USING A COMPOSITION COMPRISING ZIRCONIUM, CERIUM AND NIOBIUM AS A CATALYST  
The invention relates to a method for treating a gas containing nitrogen oxides (NOx), in which an NOx-reduction reaction is carried out using a nitrogen-containing reducing agent, which invention...
US20090274599 CATALYTIC COMPOSITIONS COMPRISING THE OXIDES OF ZIRCONIUM, CERIUM, YTTRIUM, LANTHANUM AND OTHER RARE EARTHS  
Catalytic compositions useful, e.g., for the treatment of internal combustion engine exhaust gases, are based on zirconium oxide in a weight proportion of at least 25%, from 15% to 60% of cerium...
US20070297961 System for removing sulfur oxides from recycled exhaust  
A system and method for treating exhaust gas are provided. The system has a source of combustion exhaust, a first fluid passageway and a second fluid passageway. The first fluid passageway directs...
US20150010450 APPARATUSES AND METHODS FOR STORING AND/OR FILTERING A SUBSTANCE  
Apparatuses, systems, and methods for loading and/or unloading a substance into or from a sorption media. A substance is presented at an edge of the sorption media, which comprises parallel layers...
US20140161694 SUPPORTED CATALYST FOR REMOVING NITROGEN OXIDES, METHOD OF PREPARING THE SAME, AND REMOVING METHOD OF NITROGEN OXIDES USING THE SAME  
A supported catalyst for reduction reaction of nitrogen oxides includes a support and an silver (Ag)-based compound and aluminum fluoride which are immobilized in the support. A method for...
US20130195741 CATALYZED SOOT FILTERS, SYSTEMS AND METHODS OF TREATMENT  
Catalyzed soot filters comprising a wall flow monolith having a washcoat comprising an alkali base metal composite disposed on the monolith. Methods of manufacturing and using catalyzed soot...
US20140044628 COMPOSITION BASED ON OXIDES OF ZIRCONIUM, OF CERIUM, OF AT LEAST ONE RARE EARTH OTHER THAN CERIUM AND OF SILICON, PREPARATION PROCESSES AND USE IN CATALYSIS  
The composition according to the invention is based on zirconium oxide, cerium oxide and at least one oxide of a rare earth other than cerium, in a proportion, by weight, of zirconium oxide of at...
US20120121486 FILTER COMPRISING COMBINED SOOT OXIDATION AND NH3-SCR CATALYST  
A wall-flow filter for filtering particulate matter from a flowing exhaust gas comprises a catalyst for catalysing both the conversion of solid carbon in the particulate matter by oxygen and the...
US20130189172 CATALYST FOR REMOVING NITROGEN OXIDES FROM THE EXHAUST GAS OF DIESEL ENGINES  
The invention relates to a catalyst for removal of nitrogen oxides from the exhaust gas of diesel engines, and to a process for reducing the level of nitrogen oxides in the exhaust gas of diesel...
US20130259779 CARBON MONOXIDE-SELECTIVE OXIDATION CATALYSTS  
Particles of mixed oxides of cerium, zirconium, and copper (CeZrCuOx) may be prepared as catalysts and used to preferentially catalyze the oxidation of CO in exhaust streams containing CO and NH3....
US20120328500 HIGHLY ACIDIC COMPOSITIONS COMPRISING ZIRCONIUM AND SILICON OXIDES AND AN OXIDE OF AT LEAST ONE OTHER ELEMENT SELECTED FROM AMONG TITANIUM, ALUMINUM, TUNGSTEN, MOLYBDENUM, CERIUM, IRON, TIN, ZINC, AND MANGANESE  
Compositions useful for treating the exhaust gases of diesel engines contain zirconium oxide, silicon oxide and at least one oxide of at least one element M selected from among titanium, aluminum,...
US20150202596 COMPOSITION CONTAINING ZIRCONIUM, CERIUM AND YTTRIUM OXIDES HAVING A HIGH REDUCIBILITY, METHOD FOR PREPARING SAME AND USE THEREOF IN CATALYSIS  
The invention relates to a composition containing zirconium, cerium and yttrium oxides with a cerium oxide proportion of between 3% and 15%, and yttrium oxide proportions corresponding to the...
US20130195743 METHOD FOR TREATING A GAS CONTAINING NITROGEN OXIDES (NOX), IN WHICH A COMPOSITION COMPRISING CERIUM OXIDE AND NIOBIUM OXIDE IS USED AS A CATALYST  
A method is described for treating a gas including nitrogen oxides (NOx). The method can include conducting a reduction reaction of the nitrogen oxides with a nitrogen reducing agent. Further...
US20140072494 Treatment of Cold Start Engine Exhaust  
The present invention relates to a process for reducing cold start emissions in an exhaust gas stream by contacting the exhaust stream with a combination of molecular sieves comprising (1) a small...
US20110200505 Catalyst Assembly for Treating Engine Exhaust  
According to one aspect of the present invention, a catalyst assembly is provided for treating an exhaust from an engine. In one embodiment, the catalyst assembly includes a first catalyst...
US20110033352 CATALYST/CATALYST SUPPORT COMPOSITIONS COMPRISING THE OXIDES OF ZIRCONIUM, YTTRIUM AND TUNGSTEN  
Compositions based on zirconium oxide, including 1 to 20% yttrium oxide, 1 to 30% tungsten oxide and the balance zirconium oxide, have a specific surface area of at least 40 m2/g after calcination...
US20140147357 COMPOSITION CONSISTING OF A ZIRCONIA-CERIA MIXED OXIDE WITH INCREASED REDUCIBILITY, PRODUCTION METHOD AND USE IN THE FIELD OF CATALYSIS  
The invention relates to a composition essentially consisting of a zirconia-ceria mixed oxide, with a zirconia content of at least 40 wt. % and, after 4 hours of calcination at 1000° C., a...
US20110311420 SELECTIVE CATALYTIC REDUCTION (SCR) CATALYST DEPLETION CONTROL SYSTEMS AND METHODS  
A dosing control system for a vehicle includes a current storage module, an adaption triggering module, and an adaption ending module. The current storage module estimates an amount of ammonia...
US20110005200 Catalyst System for the Reduction of NOx and NH3 Emissions  
This catalyst system simultaneously removes ammonia and enhances net NOx conversion by placing an NH3-SCR catalyst formulation downstream of a lean NOx trap. By doing so, the NH3-SCR catalyst...
US20130202507 METHOD FOR TREATING NOX IN EXHAUST GAS AND SYSTEM THEREFORE  
The present invention relates to a method for the treatment of an exhaust gas comprising NOx, wherein the method comprises the step of subjecting the exhaust gas to an exhaust gas treatment system...
US20110262329 SCR CATALYST AMMONIA SURFACE COVERAGE ESTIMATION AND CONTROL  
Described herein are various embodiments of an apparatus, a system, and a methods for reducing NOx emissions using ammonia storage on an SCR catalyst. For example, according to one embodiment, an...
US20110300042 Methods Utilizing Non-Zeolitic Metal-Containing Molecular Sieves Having The CHA Crystal Structure  
Catalysts comprising metal-loaded non-zeolitic molecular sieves having the CHA crystal structure, including Cu-SAPO-34, and methods for treating exhaust gas incorporating such catalysts are...
US20150113966 AFTERTREATMENT SYSTEMS WITH REDUCED N2O GENERATION  
Systems, apparatus and methods are disclosed for reducing the amount of nitrous oxide (N2O) produced in a selective catalytic reductant (SCR) catalyst in an exhaust aftertreatment system. The SCR...
US20130156668 CATALYST FOR REMOVING NITROGEN OXIDES FROM THE EXHAUST GAS OF DIESEL ENGINES  
The invention relates to a catalyst for removal of nitrogen oxides from the exhaust gas of diesel engines, and to a process for reducing the level of nitrogen oxides in the exhaust gas of diesel...
US20140205522 COMPOSITION BASED ON OXIDES OF CERIUM, OF ZIRCONIUM AND OF ANOTHER RARE EARTH METAL WITH HIGH REDUCIBILITY, PREPARATION PROCESS AND USE IN THE FIELD OF CATALYSIS  
The composition of the invention is based on oxides of cerium, of zirconium and of at least one rare earth metal other than cerium, with a cerium oxide content of greater than 50% by weight and it...
US20130004391 REDUCTION-CATALYST-COATED DIESEL PARTICLE FILTER HAVING IMPROVED CHARACTERISTICS  
A diesel particle filter which comprises a ceramic wall flow filter substrate and two coatings is described. The first coating which is applied in the inflow channels and is composed of...
US20130156669 CATALYSTS FOR NOX REDUCTION EMPLOYING H2 AND A METHOD OF REDUCING NOX  
Disclosed is a catalyst composition for reducing NOx through two steps including reacting NOx with H2 thus producing ammonia which is then reacted with NOx, instead of direct NOx reduction by H2,...
US20140112852 8-Ring Small Pore Molecular Sieve with Promoter to Improve Low Temperature Performance  
Described is a selective catalytic reduction catalyst comprising an 8-ring small pore molecular sieve promoted with copper and an alkaline earth component. The catalyst is effective to catalyze...
US20130034484 REDUCTION OF OXIDES OF NITROGEN IN A GAS STREAM USING MOLECULAR SIEVE SSZ-28  
The invention relates generally to molecular sieve SSZ-28 and its use in the reduction of oxides of nitrogen in a gas stream such as the exhaust from an internal combustion engine.
US20130034483 REDUCTION OF OXIDES OF NITROGEN IN A GAS STREAM USING MOLECULAR SIEVE SSZ-25  
The invention relates generally to molecular sieve SSZ-25 and its use in the reduction of oxides of nitrogen in a gas stream such as the exhaust from an internal combustion engine.
US20130034482 REDUCTION OF OXIDES OF NITROGEN IN A GAS STREAM USING MOLECULAR SIEVE SSZ-23  
The invention relates generally to molecular sieve SSZ-23 and its use in the reduction of oxides of nitrogen in a gas stream such as the exhaust from an internal combustion engine.
US20120230894 Urea-Resistant Catalytic Units And Methods of Using The Same  
According to at least one aspect of the present invention, a urea-resistant catalytic unit is provided. In at least one embodiment, the catalytic unit includes a catalyst having a catalyst...
US20100322833 Urea-Resistant Catalytic Units and Methods of Using the Same  
According to at least one aspect of the present invention, a urea-resistant catalytic unit is provided. In at least one embodiment, the catalytic unit includes a catalyst having a catalyst...
US20120315204 EXHAUST PURIFICATION DEVICE AND EXHAUST PURIFICATION METHOD FOR DIESEL ENGINE  
Provided are an exhaust purification device for a diesel engine and an exhaust purification method that utilizes the exhaust purification device enabling effective utilization of exhaust gas heat...
US20140140910 COMPOSITION CONSISTING OF A CERIA-ZIRCONIA MIXED OXIDE WITH INCREASED REDUCIBILITY, PRODUCTION METHOD AND USE IN THE FIELD OF CATALYSIS  
The invention relates to a composition essentially consisting of ceria-zirconia mixed oxide, with a ceria content of at least 60 wt. % and, after 4 hours of calcination at 1000° C., a specific...
Matches 1 - 50 out of 260 1 2 3 4 5 6 >