CeO2 catalysed soot oxidation

Setiabudi, Agus; Chen, Jiuling; Mul, Guido; Makkee, Michiel; Moulijn, Jacob A.

doi:10.1016/j.apcatb.2004.01.005

Cited by 217 publications

(99 citation statements)

References 22 publications

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“…The TAP technique has been applied to different reaction systems involving heterogeneous catalysis: Reaction transport (adsorption and diffusion) [44,45]; reforming of hydrocarbons [46][47][48][49][50][51]; hydrogenation and dehydrogenation reactions [52,53]; environmental catalysis [54][55][56][57][58]; oxidation reactions etc. [59][60][61][62][63][64][65][66][67].…”

Section: Approaches Of Kinetic Analysis For Ftsmentioning

confidence: 99%

Recent Progresses in Understanding of Co-Based Fischer–Tropsch Catalysis by Means of Transient Kinetic Studies and Theoretical Analysis

Yang

Chen

et al. 2014

Catal Lett

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During the last years it has been an increasing focus on fundamental studies of the Fischer-Tropsch synthesis (FTS). Steady-state isotopic transient kinetic analysis and first principles investigation have proven to be important methods in studying the reaction mechanism of FTS. The present contribution deals with recent progresses in understanding of the F-T mechanism on Co catalysts based on combined DFT calculations, in situ characterization, steady-state isotopic transient kinetic analysis and microkinetics. A brief outlook into future perspectives of the FTS for converting synthesis gas from different carbon sources to fuels and chemicals is also provided.

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Section: Approaches Of Kinetic Analysis For Ftsmentioning

confidence: 99%

Recent Progresses in Understanding of Co-Based Fischer–Tropsch Catalysis by Means of Transient Kinetic Studies and Theoretical Analysis

Yang

Chen

et al. 2014

Catal Lett

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“…Depending on the oxidative or reductive nature of the atmosphere, it acts as an oxygen buffer, but in principle also as an oxidiser or reductant. A lot of fundamental reports on soot oxidation by using ceria base catalyst, although the origination of the active oxygen species for soot oxidation remains controversy [7,8].…”

Section: Introductionmentioning

confidence: 99%

Fundamental Understanding of the Di-Air System: The Role of Ceria in NO x Abatement

et al. 2016

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Temporal analysis of product (TAP) is used to investigate the effectiveness of CO, C 3 H 6 , and C 3 H 8 in the reduction of a La-Zr doped ceria catalyst and NO reduction into N 2 over this pre-reduced catalyst. Hydrocarbons are found to be substantially more effective in the reduction of this catalyst at high temperature (above 500°C) as compared to CO. NO decomposes over oxygen anion defects created upon catalyst reduction. Deposited carbon, in case the catalyst is reduced by C 3 H 6 or C 3 H 8 , acts as a delayed or stored reductant and is not directly involved in NO reduction. Instead the oxidation of deposited carbon by an oxygen species derived from lattice oxygen (re)creates the oxygen anion defects active in NO reduction. In situ Raman, in which NO is flown over C 3 H 6 pre-reduced LaZr doped ceria at 560°C, additionally shows that re-oxidation of the La-Zr doped ceria catalyst starts prior to the oxidation of deposited carbon, which confirms our TAP findings that firstly NO re-oxidized the La-Zr doped ceria catalyst and that secondly the oxidation of deposited carbon only commences at a higher ceria oxidation state. These findings create a new perspective on the operating principle of Toyota's Di-Air system.

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“…In coke combustion, NO 2 , produced by the oxidation of NO, reacted with CeO 2 and formed Ce super-oxide, which subsequently underwent secondary reactions to yield N 2 . 19) When the flue gas was recycled to the combustion of coke loaded with 2.0 % CeO 2 , the NO x reduction ratio was 26.2 %, which was 1.9 times as much as that of the coke © 2008 ISIJ combustion with recycling flue gas. In the combustion of coke loading with CeO 2 , the concentration of NO x emission decreased nonlinearly, which was related to the extent of the contact between CeO 2 and coke.…”

Section: Effect Of Ceo 2 Loading Amount On No X Emissionmentioning

confidence: 99%

Application of Modified Coke to NOx Reduction with Recycling Flue Gas during Iron Ore Sintering Process

2008

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CeO2 catalysed soot oxidation

Cited by 217 publications

References 22 publications

Recent Progresses in Understanding of Co-Based Fischer–Tropsch Catalysis by Means of Transient Kinetic Studies and Theoretical Analysis

Recent Progresses in Understanding of Co-Based Fischer–Tropsch Catalysis by Means of Transient Kinetic Studies and Theoretical Analysis

Fundamental Understanding of the Di-Air System: The Role of Ceria in NO x Abatement

Application of Modified Coke to NOx Reduction with Recycling Flue Gas during Iron Ore Sintering Process

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