The Development of Fiber Wound Diesel Particulate Filter Cartridges

Bloom, Richard L.

doi:10.4271/950152

Cited by 20 publications

(3 citation statements)

References 13 publications

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“…Two of the biggest challenges to be overcome are the robustness of the filter, in terms of both structure (7)(8)(9)(10)(11)(12)(13)(14) and material (15)(16)(17)(18)(19)(20)(21), and how to remove the trapped soot and hence regenerate the DPF (22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32). Some of the methods for regenerating the DPF rely on a platinum catalyst (33).…”

Section: Introductionmentioning

confidence: 99%

Metal Emissions, NO2 and HC Reduction from a Base Metal Catalysed DPF/FBC System

Richards¹,

Vincent²,

Johansen³

et al. 2006

SAE Technical Paper Series

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Due to concerns over NO 2 emissions from platinum catalysts a base metal catalysed diesel particulate filter (DPF) has been developed and used in combination with fuel borne catalysts (FBC). Results are presented showing reductions in HC, NO X , NO 2 , and PAH emissions along with an assessment of the emissions of metals used in the FBC and the catalysed DPF. This data is used to show the likely reduction in overall iron and other metal emissions as a result of using the catalysed DPF/FBC system. A similar system has also been assessed for durability for over 2000 hours when fitted to a bus in regular service in Switzerland.

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Section: Introductionmentioning

confidence: 99%

Metal Emissions, NO2 and HC Reduction from a Base Metal Catalysed DPF/FBC System

Richards¹,

Vincent²,

Johansen³

et al. 2006

SAE Technical Paper Series

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“…The trap used in this experiment is based on 3M cartridges. This kind of cartridges, represented Figure 3a, have been frequently reported in the literature [10,11,12]. They are built with Nextel ceramic fibres wound around a punched steel tube.…”

Section: Experimental Set-upmentioning

confidence: 99%

Novel Additive for Particulate Trap Regeneration

Dementhon

Martin

Richards

et al. 1995

SAE Technical Paper Series

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UN NOUVEL ADDITIF POUR LA RÉGÉNÉRATION DES FILTRES À PARTICULES DIESELSUne des voies les plus prometteuses pour la régénération des filtres à particules diesels consiste à additiver le carburant avec des composés organo-métalliques. Cet article s'intéresse à un nouveau dérivé alcalin, capable de favoriser des régénérations spontanées pour des températures à l'échappement descendant jusqu'à 200°C, et pour des teneurs en métal aussi faibles que 5 ppm. Des essais ont été réalisés sur un réacteur à suies et sur un moteur au banc, avec différentes localisations des filtres à l'échappement, montrant que le déclenchement de la régénération dépend de la température, de la masse de suie accumulée dans les structures poreuses et des conditions opératoires du moteur. Le nettoyage complet du filtre nécessite encore des températures de gaz supérieures à 400°C, qui peuvent être atteintes lors des fonctionnements à fortes charges du moteur. NOVEL ADDITIVE FOR PARTICULATE TRAP REGENERATIONOne of the most promising ways to insure the periodic regeneration of a particulate trap, consists to additise the fuel with organometallic compounds. The present paper deals with a novel alkali product, able to promote natural regenerations, for exhaust temperatures as low as 200°C, and treatment rates as low as 5 ppm. Tests have been carried out on a soot reactor and on an engine bench with various trap locations in the exhaust showing that the regeneration occurrence depends on temperature, soot mass loaded inside the porous structure, engine conditions. A complete trap cleaning still needs gas temperatures up to 400°C, which can be encountered for high load conditions of the engine. NUEVO ADITIVO PARA REGENERACIÓN DE LOS FILTROS DE PARTÍCULAS DE MOTORES DIESELUna de las soluciones más prometederas para la regeneración de los filtros de partículas de los motores diesel consiste en una adición del carburante por medio de compuestos organo-metálicos. En este artículo se trata de un nuevo derivado alcalino, capaz de propiciar las regeneraciones espontáneas para temperaturas de escape que descienden hasta los 200°C, y para concentraciones de metal tan reducidas como 5 ppm. Se han efectuado diversas pruebas en un reactor de hollines y en un motor en banco de pruebas, con diversas localizaciones de los filtros en un escape, demostrando así que cuando se produce la regeneración ello depende de la temperatura, de la masa de hollines acumulada en las estructuras porosas y de las condiciones operativas del motor. La limpieza completa del filtro requiere también temperaturas de gas superiores a 400°C, que se pueden alcanzar cuando el motor funciona con fuertes cargas.

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“…The problem is actually that some of these buses, equipped with engines of ancient technology, are relatively high polluters but still have to be kept running due to the high cost of their replacement. Particulate filtration is not the main problem, as several types of filtering media are able to capture up to 90% or more of the solid material present in exhaust gases (17)(18)(19) (FIGS. 9 and 10).…”

mentioning

confidence: 99%

Catalytic automotive exhaust gas depollution: Present status and new trends

Prigent

1996

Bulletin des Soc Chimique

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Journ6e de Contact en Catalyse de la Communauth Franpaise de Belgique : "Catalyse par les metaux" le 7 dbcembre 1995, Bruxelles ABSTRACTA review is made of the various types of exhaust gas aftertreatment systems presently used on most vehicles to reduce pdlutant emissions. The systems are differentiated by their mode of action, according to the engine type to be depolluted (2-strokes, 4-strokes, diesel or spark-ignition), and by their type of make-up. The major developmentsforeseen in the future, in view of compliance with the new legislations, are described. Means enabling some prototype vehicles with internal combustion engines to emit pollutant quantities really close to zero, such as electric cars, are described.

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The Development of Fiber Wound Diesel Particulate Filter Cartridges

Cited by 20 publications

References 13 publications

Metal Emissions, NO2 and HC Reduction from a Base Metal Catalysed DPF/FBC System

Metal Emissions, NO2 and HC Reduction from a Base Metal Catalysed DPF/FBC System

Novel Additive for Particulate Trap Regeneration

Catalytic automotive exhaust gas depollution: Present status and new trends

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