Fiber Wound Diesel Particulate Filter Durability Experience with Metal Based Additives

Bloom, Richard L.; Brunner, Nathan R.; Schroeer, Steven C.

doi:10.4271/970180

Cited by 20 publications

(4 citation statements)

References 1 publication

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“…Among the metals studied, the lowest light-off temperatures were obtained with Rb and Cu [2]. In the same line, Bloom et al [3] compared Fe, Cu and Ce fuel additives and found that only copper could efficiently regenerate the filter. G. Mul et al [4] also screened a number of metal chlorides (Ba, Ca, Fe, Bi, Hg, Co, Mo, Ni, Cu, and Pb) for catalytic oxidation of model soot, concluding that those based on Pb and Cu are the most active.…”

Section: -Introductionmentioning

confidence: 64%

Cu/Al2O3 catalysts for soot oxidation: Copper loading effect

López-Suárez

Bueno‐López

Illán-Gómez

2008

Applied Catalysis B: Environmental

173

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Cu/Al 2 O 3 catalysts with metal loading from 0.64 to 8.8 wt. % have been prepared and characterised by different techniques: N 2 adsorption at -196ºC (BET surface area), ICP (Cu loading), XRD, selective copper surface oxidation with N 2 O (Cu dispersion), TPR-H 2 (redox properties), and XPS (copper surface species). The catalytic activity for soot oxidation has been tested both in air and NOx/O 2 . The activity in air depends on the amount of easily-reduced Cu(II) species, which are reduced around 275ºC under TPR-H 2 conditions. The amount of the most active Cu(II) species increases with the copper loading from Cu_1% to Cu_5% and remains almost constant for higher copper loading.In the presence of NOx, the first step of the mechanism is NO oxidation to NO 2 , and the catalytic activity for this reaction depends on the copper loading. For catalysts with copper loading between Cu_1% and Cu_5%, the catalytic activity for soot oxidation in the presence of NOx depends on NO 2 formation. For catalysts with higher copper loading this trend is not followed because of the low reactivity of model soot at the temperature of maximum NO 2 production. Regardless the copper loading, all the catalysts improve the selectivity towards CO 2 formation as soot oxidation product both under air and NOx/O 2 .

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Section: -Introductionmentioning

confidence: 64%

Cu/Al2O3 catalysts for soot oxidation: Copper loading effect

López-Suárez

Bueno‐López

Illán-Gómez

2008

Applied Catalysis B: Environmental

173

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“…Soot formation and morphology have been extensively investigated (Ishiguro et al, 1997;Smith, 1981Smith, , 1982Ishiguro et al, 1991). Based on these studies, different exhaust control strategies have been proposed over the past decades to reduce particulate emissions, i.e., passively regenerated filters using homogeneous fuel additives or catalytically active filters (Bloom et al, 1997;Hüthwohl et al, 1987). A major problem is the fact that Diesel exhaust temperatures are generally low as compared to soot light-off temperatures.…”

Section: Introductionmentioning

confidence: 99%

Microwave-assisted in-situ regeneration of a perovskite coated diesel soot filter

Zhang-Steenwinkel

Zande

Castricum

et al. 2005

Chemical Engineering Science

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“…Several additives have been tested in order to reduce carbon burning out temperatures and thereby to enhance the performance of DPF [5][6][7][8]. Most of the additives contain inorganic compounds, e.g.…”

Section: Introductionmentioning

confidence: 99%

Influence of diesel particulate filter additives on biodiesel quality

Schober

Mittelbach

2005

Eur. J. Lipid Sci. Technol.

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Influence of diesel particulate filter additives on biodiesel qualityThe influence of the diesel particulate filter additives (DPA) SATACEN and EOLYS on biodiesel fuel quality has been evaluated. Both additives significantly affected the oxidation stability of neat biodiesel. The influence on acid values and CFPP was found to be only small. Combination of diesel additives with biodiesel additives like oxidation stability and CFPP improvers led to similar results. Results indicated that DPA also lowered the efficiency of the oxidation stability improver Baynox. Furthermore, the CFPP additives Chimec and Infineum were also prone to have a small influence on biodiesel oxidation stability.

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Fiber Wound Diesel Particulate Filter Durability Experience with Metal Based Additives

Cited by 20 publications

References 1 publication

Cu/Al2O3 catalysts for soot oxidation: Copper loading effect

Cu/Al2O3 catalysts for soot oxidation: Copper loading effect

Microwave-assisted in-situ regeneration of a perovskite coated diesel soot filter

Influence of diesel particulate filter additives on biodiesel quality

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