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Jelles, S.J; Makkee, Michiel; Moulijn, Jacob A.

doi:10.1023/a:1016692527968

Cited by 32 publications

(29 citation statements)

References 4 publications

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“…The superior oxidation performance of the Pt-Cesoot and Ce-soot is only observed in the presence of excess NO 2 + O 2 or NO + O 2 + Pt/Al 2 O 3 . In order to explain such a behaviour especially in the presence of Pt/Al 2 O 3 catalyst Jelles et al [6,7,9] have proposed that ceria catalyses the soot oxidation by NO 2 (apart from direct soot oxidation with NO 2 ). The NO 2 decomposes over CeO 2 to NO and adsorbed 'O*' on CeO 2 surface and the adsorbed O* will efficiently oxidise the soot.…”

Section: Resultsmentioning

confidence: 99%

“…Bimetallic fuel-borne catalysts containing ultra low concentrations of Pt-Ce has shown to decrease the balance point temperature to around 275-300°C [6,7]. This is the lowest balance point achieved among the many combinations of fuel additives and catalysed soot filters studied so far.…”

Section: Introductionmentioning

confidence: 92%

“…Ce (50 ppm), Pt (50 ppm), Pt-Ce-soot (2 ppm Pt and 30 ppm Ce), Cu-soot (100 ppm), and Fe (44 ppm) containing soot are generated from the respective fuelborne catalyst additives (concentration given in parenthesis is the amount added to the fuel) in a real diesel engine [6,7]. The diesel engine used for the soot collection (at 75% load) and the filter evaluation was a two cylinder LPW2, produced by Lister-Petter, UK, and did not fulfil the Euro emission standards.…”

Section: Materials and Characterisationmentioning

confidence: 99%

“…Using a fuel-borne catalyst the major problem of contact between catalyst and soot is overcome and un-catalysed soot filters can be used to capture and oxidise the soot. Depending on the type of fuel-borne catalysts used, the soot can be oxidised with O 2 or with O 2 + NO 2 [4,6,7]. The significant advantage of fuelborne catalysts is further realised in the presence of SO 2 , which does hardly influence the soot oxidation behaviour.…”

Section: Introductionmentioning

confidence: 99%

“…The FBC-DPF system is economic and reliable compared with catalysed soot filters. A variety of fuelborne catalysts are proposed, the examples of fuel-borne catalysts studied are Ce, Fe, Ce-Fe, Pt, Pt-Ce, Mn, and Cu [4,6,7]. By utilising a combination of fuel-borne catalysts, the regeneration can be faster, ash built up can be small and also the balance-point temperature can be reduced.…”

Section: Introductionmentioning

confidence: 99%

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Pt–Ce-soot generated from fuel-borne catalysts: soot oxidation mechanism

Kamasamudram

Makkee

2007

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Soot containing Ce-, Pt-, Pt-Ce-, Fe-, and Cu-fuel-borne catalysts is generated in a diesel engine, is characterised by XRD, and studied in oxidation with O 2 and NO + O 2 under various reaction conditions. Fe-, Pt-Ce-and Ce-soot are oxidised at lower temperature with O 2 , compared with Pt-soot, and the opposite trend is observed with NO + O 2 . NO is oxidised to NO 2 more efficiently over Pt-soot and decreased the soot oxidation temperature by about 150°C, compared with Ce-, Fe-or Pt-Ce-soot. On the other hand, NO 2 is most efficiently utilised over the Pt-Ce-and Ce-soot. The soot oxidation under the different feed gas conditions demonstrates that nitrate species are involved in the oxidation of Ce-and Pt-Ce-soot. The oxidation species with the decreasing order of activity are: (1) nitrates, (2) NO 2 , (3) lattice oxygen, and (4) gas-phase oxygen. All the above species are involved in the oxidation of Pt-Ce-soot.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 92%

Section: Materials and Characterisationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pt–Ce-soot generated from fuel-borne catalysts: soot oxidation mechanism

Kamasamudram

Makkee

2007

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Urban Geochemical Mapping: A Review of Case Studies in this Volume

Johnson

Demetriades

2011

Mapping the Chemical Environment of Urban Areas

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The development and history of geochemical mapping in urban areas is summarised. Urban geochemical surveys are generally classified as being systematic or targeted. A summary of the case studies presented in this book considers the sampling strategies, the chemical and data analytical methods applied. The use of the terms urban area, baseline, background and guideline values is explored. Important issues such as legislative drivers, communicating the results and future trends are also discussed.

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Homogeneous Combustion Catalysts for Efficiency Improvements and Emission Reduction in Diesel Engines

Zhang¹

2015

Handbook of Clean Energy Systems

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The effectiveness of the use of the FTC/FPC diesel combustion catalysts manufactured by Fuel Technology Pty Ltd, in diesel fuel oil used in mining operations including haul trucks, light vehicles, and mobile equipment was evaluated by means of reviewing a large body of information found in the open literature and performing various proprietary field trials. It was found that the diesel combustion catalysts are capable of improving both fuel efficiency and engine performance, which is supported by both combustion theory and field trial data. A fuel reduction of 2.5% across all types of engines can be claimed with > 97% confidence based on statistical analysis. The catalysts can also improve the mechanical performance of engines due to cleaner combustion with much reduced soot and unburnt hydrocarbon formation.

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Cited by 32 publications

References 4 publications

Pt–Ce-soot generated from fuel-borne catalysts: soot oxidation mechanism

Pt–Ce-soot generated from fuel-borne catalysts: soot oxidation mechanism

Urban Geochemical Mapping: A Review of Case Studies in this Volume

Homogeneous Combustion Catalysts for Efficiency Improvements and Emission Reduction in Diesel Engines

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