Patent application number | Description | Published |
20140334978 | System and Apparatus for a Laboratory Scale Reactor - The present disclosure may include a device for testing catalysts, and a method for controlling the flow rate and temperature parameters during the process. The device may separate mass flow control through heating elements from the mass flow through the sample, as well as separate banks for mixing oxidizing elements, carbon dioxide, and diluent gas as well as reducing agents, nitric oxide, and diluent gas. The device disclosed here may also use mass control units of a sufficiently high speed so as to allow the desired testing conditions. | 11-13-2014 |
20140335625 | Temperature Control Method in a Laboratory Scale Reactor - Disclosed herein is a method of separating variations in the mass flow of gas through a catalyst from the thermal load observed by the temperature control system in a test bench. The method may include separating the temperature control component from the mass flow control component. | 11-13-2014 |
20140335626 | Test Bench Gas Flow Control System and Method - The present disclosure may include a method for preparing gas mixtures of use in testing catalysts, where the method may include using separate banks of mass flow controllers for mixing the gas composition to the desired composition and for controlling the flow of the gas composition through the heater. A separate bank may be used for controlling any suitable mix of reducing agents while another separate bank may be used for controlling any suitable mix of oxidizing gases. | 11-13-2014 |
20140364303 | Systems and Methods for Using Pd1+ in a TWC - Stabilized palladium (+1) compounds to mimic rhodium's electronic configuration and catalytic properties are disclosed. Palladium (+1) compounds may be stabilized in perovskite or delafossite structures and may be employed in Three-Way Catalysts (TWC) for at least the conversion of HC, CO and NOx, in exhaust gases. The TWC may include a substrate, a wash-coat and, a first impregnation layer, a second impregnation layer and an over-coat. The second impregnation layer and the over-coat may include palladium (+1) based compounds as catalyst. | 12-11-2014 |
20150147239 | ZPGM Underfloor Catalyst for Hybrid Exhaust Treatment Systems - Hybrid PGM-ZPGM exhaust treatment systems are disclosed. The systems include a PGM close-couple catalytic converter followed by an underfloor ZPGM catalytic converter. The disclosed hybrid systems, including PGM based catalysts and zero-PGM based catalysts may replace pure PGM based exhaust treatment systems. The ZPGM catalyst compositions used may include copper and cerium as active ZPGM catalysts. The disclosed ZPGM underfloor converters may be designed to convert leaks from close-couple converters. | 05-28-2015 |
20150258496 | Hybrid PGM-ZPGM TWC Exhaust Treatment Systems - Hybrid PGM-ZPGM three-way catalyst (TWC) exhaust treatment systems are disclosed. The hybrid PGM-ZPGM TWC systems include a PGM close-coupled catalytic converter followed by an underfloor catalytic converter. The underfloor catalytic converter includes a ZPGM-based catalyst. Additionally, the underfloor catalytic converter can also be a PGM/ZPGM zone coated catalytic converter. The disclosed hybrid TWC systems comprising PGM-based and ZPGM-based catalysts can replace pure PGM-based exhaust treatment systems. | 09-17-2015 |
20150316524 | System and Apparatus for a Laboratory Scale Reactor - The present disclosure may include a device for testing catalysts, and a method for controlling the flow rate and temperature parameters during the process. The device may separate mass flow control through heating elements from the mass flow through the sample, as well as separate banks for mixing oxidizing elements, carbon dioxide, and diluent gas as well as reducing agents, nitric oxide, and diluent gas. The device disclosed here may also use mass control units of a sufficiently high speed so as to allow the desired testing conditions. | 11-05-2015 |
20150352494 | Three-way Catalyst Systems Including Nb-Zr-Al-Mixed Oxide Supports, Ba-Pd, and Rh-Fe Material Compositions - The present disclosure describes zoned three way catalyst (TWC) systems including Rhodium-iron overcoat layers and Nb—Zr—Al Oxide overcoat layers. Disclosed herein are TWC sample systems that are configured to include a substrate and one or more of a washcoat layer, an impregnation layer, and/or an overcoat layer. In catalyst systems disclosed herein, closed-coupled catalysts include a first catalyst zone with an overcoat layer formed using a slurry that includes an oxide mixture and an Oxygen Storage Material (OSM). In catalyst systems disclosed herein, oxide mixtures include niobium oxide (Nb | 12-10-2015 |
20150352531 | Rhodium-Iron Catalysts - The present disclosure describes rhodium iron catalysts of use in catalyst systems. Disclosed here are TWCs configured to include a substrate and one or more of a washcoat layer, an impregnation layer, and/or an overcoat layer. Disclosed herein are one or more of a washcoat layer and/or an overcoat layer formed using a slurry that includes one or more of an oxygen storage material, a refractory support oxide, iron, and rhodium. Disclosed herein are methods of preparing catalysts wherein a washcoat layer is deposited onto the substrate, one or more impregnation layers may be deposited onto the washcoat layer, one or more overcoat layers may be deposited onto the impregnation washcoat layer, and one or more additional impregnation layers may be deposited onto the one or more washcoat layers. | 12-10-2015 |
20150352532 | Three-way Catalyst Systems Including Fe-activated Rh and Ba-Pd Material Compositions - Three way catalysts (TWCs) for catalyst systems are disclosed. The disclosed TWC systems include Iron (Fe)-activated Rhodium (Rh) and Barium (Ba)-Palladium (Pd) layers capable of interacting with conventional and/or non-conventional catalyst supports and additives. Variations of TWC system samples are produced including Fe-activated Rh layers deposited onto a washcoat (WC) layer having one or more of an oxygen storage material (OSM). Other TWC system samples are produced including an impregnation (IMPG) layer having loading variations of Ba within a Pd, Ce, and Nd applied onto an OSM WC layer, and a further overcoat layer including Fe-activated Rh is applied onto the IMPG layer. The catalytic performance of disclosed TWC catalysts is evaluated by performing a series of light-off tests, wide pulse perturbation tests, and standard isothermal oxygen storage capacity oscillating tests. Disclosed TWC catalysts exhibit high catalytic performance and significant oxygen storage capacity. | 12-10-2015 |
20150352533 | Base Metal Activated Rhodium Coatings for Catalysts in Three-Way Catalyst (TWC) Applications - Close-coupled catalysts (CCC) for TWC applications are disclosed. The novel CCCs are implemented using light-weighted ceramic substrates in which a thin coating employing a low loading of Iron (Fe)-activated Rhodium (Rh) material composition, with Iron loadings and an OSM of Ceria-Zirconia, are deposited onto the substrates. Different CCC samples are produced to determine and/or verify improved light-off (LO) and NO | 12-10-2015 |