CLEAN DIESEL TECHNOLOGIES, INC. Patent applications |
Patent application number | Title | Published |
20160136621 | Bimetallic Synergized PGM Catalyst Systems for TWC Application - Bimetallic Synergized Platinum Group Metals (SPGM) catalyst systems for TWC application are disclosed. Disclosed bimetallic SPGM catalyst systems may include a washcoat with a Cu—Mn spinel structure and an overcoat that includes PGMs, such as Pd/Rh or Pt/Rh supported on carrier material oxides, such as alumina. Bimetallic SPGM catalyst systems show significant improvement in nitrogen oxide reduction performance under lean operating conditions, which allows a reduced consumption of fuel. Additionally, disclosed bimetallic SPGM catalyst systems exhibit enhanced catalytic activity for carbon monoxide conversion. Furthermore, bimetallic SPGM catalyst systems are found to have enhanced catalytic activity for fresh, hydrothermally aged and fuel cut aged conditions compared to PGM catalyst system, showing that there is a synergistic effect between PGM catalyst and Cu—Mn spinel within the disclosed SPGM catalyst system which help in performance and thermal stability of disclosed SPGM catalyst systems. | 05-19-2016 |
20160136620 | Zero PGM Catalyst Including Cu-Co-Mn Ternary Spinel for TWC Applications - Variations of ZPGM bulk powder catalyst materials, including Cu—Co—Mn ternary spinel systems for TWC applications are disclosed. Bulk powder catalyst samples are prepared employing a plurality of molar ratio variations, including disclosed Cu—Co—Mn spinel on Praseodymium-Zirconia support oxide made by incipient wetness method, or Cu—Co—Mn spinel on Niobium-Zirconia support oxide, which may be synthesized by co-precipitation method. A plurality of bulk powder catalyst samples may be tested by performing isothermal steady state sweep test, employing a flow reactor at inlet temperature of about 450° C., and testing a gas stream from lean to rich condition and influence on TWC performance measured/analyzed, which may lead into significant improvements in the manufacturing of ZPGM bulk powder catalyst materials for TWC applications. | 05-19-2016 |
20160136619 | Cobalt Containing Bimetallic Zero PGM Catalyst for TWC Applications - Variations of bulk powder catalyst material including Cu—Co, Fe—Co, and Co—Mn spinel systems for ZPGM TWC applications are disclosed. The disclosed bulk powder catalyst samples include stoichiometric and non-stoichiometric Cu—Co, Fe—Co, and Co—Mn spinels on Pr | 05-19-2016 |
20160136618 | Sulfur-Resistant Synergized PGM Catalysts for Diesel Oxidation Application - Sulfur-resistant SPGM catalysts with significant oxidation capabilities are disclosed. A plurality of catalyst samples may be prepared including ZPGM material compositions of YMnO | 05-19-2016 |
20160136617 | Synergized PGM Catalyst with Low PGM Loading and High Sulfur Resistance for Diesel Oxidation Application - Sulfur-resistant SPGM catalysts with significant oxidation capabilities are disclosed. Catalytic layers of SPGM samples may be prepared using incipient wetness and metallizing techniques to structure a washcoat layer of ZPGM material of YMnO | 05-19-2016 |
20160121309 | Thermally Stable Zero PGM Catalysts System for TWC Application - Effect of the type of material composition employed within overcoat in conjunction with ZPGM composition in impregnation layer on thermal stability and TWC performance of ZPGM catalyst systems is disclosed. Effect of aging temperature on thermal stability of disclosed ZPGM catalyst systems is also described. Testing of ZPGM catalyst samples including isothermal steady state sweep test condition and isothermal oscillating TWC test on disclosed ZPGM catalyst systems show that ZPGM catalyst system that includes combination of Cu | 05-05-2016 |
20160121308 | Thermal Stability of Copper-Manganese Spinel as Zero PGM Catalyst for TWC Application - Effect of the type of ZPGM material composition to improve thermal stability of ZPGM catalyst systems for TWC application is disclosed. ZPGM catalyst system samples are prepared and configured with washcoat on ceramic substrate, overcoat including doped Zirconia support oxide, and impregnation layer including either Cu | 05-05-2016 |
20160082422 | Systems and Methods for Zero-PGM Binary Catalyst Having Cu, Mn, and Fe For TWC Applications - Variations of bulk powder catalyst material including Cu—Mn, Cu—Fe, and Fe—Mn spinel systems for ZPGM TWC applications are disclosed. The disclosed bulk powder catalyst samples include stoichiometric and non-stoichiometric Cu—Mn, Cu—Fe, and Fe—Mn spinels on Pr | 03-24-2016 |
20160023188 | Pseudo-brookite Compositions as Active Zero-PGM Catalysts for Diesel Oxidation Applications | 01-28-2016 |
20150196902 | PALLADIUM SOLID SOLUTION CATAYST AND METHODS OF MAKING - Disclosed are three-way catalysts that are able to simultaneously convert nitrogen oxides, carbon monoxide, and hydrocarbons in exhaust gas emissions into less toxic compounds. Also disclosed are three-way catalyst formulations comprising palladium (Pd)-containing oxygen storage materials. In some embodiments, the three-way catalyst formulations of the invention do not contain rhodium. Further disclosed are improved methods for making Pd-containing oxygen storage materials. The relates to methods of making and using three-way catalyst formulations of the invention. | 07-16-2015 |
20150182954 | Phase Stability of Lanthanum-Manganese Perovskite in the Mixture of Metal Oxides - The present disclosure describes ZPGM material compositions including LaMnO | 07-02-2015 |
20150182951 | Phase Stability of Copper-Manganese Spinel Oxide within a Mixture of Metal Oxides - The present disclosure describes ZPGM material compositions including a CuMn | 07-02-2015 |
20150105247 | Methods and Processes of Coating Zero-PGM Catalysts including with Cu, Mn, Fe for TWC Applications - Variations of coating processes of Cu—Mn—Fe ZPGM catalyst materials for TWC applications are disclosed. The disclosed coating processes for Cu—Mn—Fe spinel materials are enabled in the preparation ZPGM catalyst samples according to a plurality of catalyst configurations, which may include an alumina only washcoat layer coated on a suitable ceramic substrate, and an overcoat layer with or without an impregnation layer, including Cu—Mn—Fe spinel and doped Zirconia support oxide, prepared according to variations of disclosed coating processes. Activity measurements are considered under variety of lean condition to rich condition to analyze the influence of disclosed coating processes on TWC performance of ZPGM catalysts for a plurality of TWC applications. Different coating processes may substantially increase thermal stability and TWC activity, providing improved levels of NO | 04-16-2015 |
20150105243 | Systems and Methods for Zero-PGM Binary Catalyst Having Cu, Mn, and Fe for TWC Applications - Variations of bulk powder catalyst material including Cu—Mn, Cu—Fe, and Fe—Mn spinel systems for ZPGM TWC applications are disclosed. The disclosed bulk powder catalyst samples include stoichiometric and non-stoichiometric Cu—Mn, Cu—Fe, and Fe—Mn spinels on Pr | 04-16-2015 |
20150105242 | Influence of Base Metal Loadings on TWC Performance of ZPGM Catalysts - Influence of a plurality of base metal loadings on TWC performance of ZPGM catalysts for TWC applications is disclosed. ZPGM catalyst samples are prepared and configured with washcoat on ceramic substrate, overcoat including doped Zirconia support oxide, and impregnation layer of Cu—Mn spinel with different base metal loadings. Testing of ZPGM catalyst samples including variations of base metal loadings is developed under isothermal steady state sweep test condition to evaluate the influence of variations of base metal loadings on TWC performance in NO | 04-16-2015 |
20130236380 | PALLADIUM SOLID SOLUTION CATAYST AND METHODS OF MAKING - Disclosed are three-way catalysts that are able to simultaneously convert nitrogen oxides, carbon monoxide, and hydrocarbons in exhaust gas emissions into less toxic compounds. Also disclosed are three-way catalyst formulations comprising palladium (Pd)-containing oxygen storage materials. In some embodiments, the three-way catalyst formulations of the invention do not contain rhodium. Further disclosed are improved methods for making Pd-containing oxygen storage materials. The relates to methods of making and using three-way catalyst formulations of the invention. | 09-12-2013 |
20130115144 | Catalyst with Lanthanide-Doped Zirconia and Methods of Making - The invention generally relates to three-way catalysts and catalyst formulations capable of simultaneously converting nitrogen oxides, carbon monoxide, and hydrocarbons into less toxic compounds. Such three-way catalyst formulations contain ZrO | 05-09-2013 |
20110239626 | Diesel Particulate Control - A method and apparatus are provided for reducing emissions of particulates from diesel engines. Exhaust is passed through a diesel particular filter having at least two stages comprised of (a) a catalyst section having a platinum group metal catalyst on contact surfaces within the catalyst section and (b) a filter section comprised of passages effective to remove particulates from a moving stream of combustion gases generated by combusting the fuel in the engine and holding them therein to permit their oxidation. Carbon removal is enhanced by utilizing levels of platinum group metal composition, cerium compositions, fuels and/or optional chemical enhancers to generate NO | 10-06-2011 |
20080210184 | Fuel Additive Concentrate Dosing System - A safe, reliable system for automatically dosing diesel truck fuel tanks with a fuel additive is provided. The additive, such as a concentrated solution containing fuel borne catalyst (FBC), is fed by gravity and dosing is controlled with a signal from a switch located on the ignition switch and/or the fuel tank cap and filler spout. When the ignition switch is in the on position and/or the cap is removed, a solenoid opens a valve and permits a timed or otherwise measured amount of additive to flow into the tank while the cap is off. Replacing the cap and/or turning off the ignition switch preferably stops the flow of additive, the flow rate being set to supply a predetermined amount of additive during an average refueling interval. | 09-04-2008 |