Particle size and support effects on the activity and deactivation of Pt-based catalysts for the reduction of NO by n-octane under lean-burn conditions

1998 ◽  
pp. 625-626 ◽  
Author(s):  
Robert Burch
Keyword(s):  
Particle Size ◽  
Lean Burn ◽  
Reduction Of No ◽  
Support Effects

Particle Size and Support Effects in Electrocatalysis

2013 ◽  
Vol 46 (8) ◽  
pp. 1858-1866 ◽  
Author(s):  
Brian E. Hayden
Keyword(s):  
Particle Size ◽  
Support Effects

Catalytic NOx reduction in lean burn exhaust over Pt/silica catalysts with controlled Pt particle size

1999 ◽  
Vol 21 (3) ◽  
pp. 221-226 ◽  
Author(s):  
F. Jayat ◽  
C. Lembacher ◽  
U. Schubert ◽  
J.A. Martens
Keyword(s):  
Particle Size ◽  
Nox Reduction ◽  
Lean Burn

scholarly journals Effect of initial support particle size of MnOx/TiO2 catalysts in the selective catalytic reduction of NO with NH3

RSC Advances ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 4682-4692 ◽  
Author(s):  
Yang Yang ◽  
Zhun Hu ◽  
Rongli Mi ◽  
Dan Li ◽  
Xiang Yong ◽  
...  
Keyword(s):  
Particle Size ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Reduction Of No ◽  
Support Particle ◽  
Initial Support

Support particle size could influence the surface Mn4+/Mn ratio of catalysts, promoting the reactivity of bridge nitrate, therefore enhancing SCR performance.

Particle size and support effects in hydrogenation over supported gold catalysts

2013 ◽  
Vol 3 (2) ◽  
pp. 454-461 ◽  
Author(s):  
U. Hartfelder ◽  
C. Kartusch ◽  
M. Makosch ◽  
M. Rovezzi ◽  
J. Sá ◽  
...  
Keyword(s):  
Particle Size ◽  
Gold Catalysts ◽  
Support Effects ◽  
Supported Gold Catalysts ◽  
Supported Gold

Particle size and support effects on the complete benzene oxidation by Co and Co–Pt catalysts

2007 ◽  
Vol 42 (10) ◽  
pp. 3315-3320 ◽  
Author(s):  
Silviya Todorova ◽  
Georgi Kadinov ◽  
Krasimir Tenchev ◽  
Yuri Kalvachev ◽  
Vladislav Kostov-Kytin
Keyword(s):  
Particle Size ◽  
Benzene Oxidation ◽  
Pt Catalysts ◽  
Support Effects

Platinum Particle Size and Support Effects in NOxMediated Carbon Oxidation over Platinum Catalysts

2006 ◽  
Vol 40 (8) ◽  
pp. 2727-2733 ◽  
Author(s):  
Kenneth Villani ◽  
Walter Vermandel ◽  
Koen Smets ◽  
Duoduo Liang ◽  
Gustaaf Van Tendeloo ◽  
...  
Keyword(s):  
Particle Size ◽  
Platinum Catalysts ◽  
Platinum Particle ◽  
Carbon Oxidation ◽  
Support Effects

scholarly journals Soot Emission Simulations of a Single Sector Model Combustor Using Incompletely Stirred Reactor Network Modeling

2020 ◽  
Author(s):  
Savvas Gkantonas ◽  
Jenna M. Foale ◽  
Andrea Giusti ◽  
Epaminondas Mastorakos
Keyword(s):  
Particle Size ◽  
Soot Particle ◽  
Mixture Fraction ◽  
Computational Cost ◽  
Chemical Mechanism ◽  
Lean Burn ◽  
Sector Model ◽  
Stirred Reactor ◽  
Complex Chemistry ◽  
Reactor Network

Abstract The simulation of soot evolution is a problem of relevance for the development of low-emission aero-engine combustors. Apart from detailed CFD approaches, it is important to also develop models with modest computational cost so a large number of geometries can be explored, especially in view of the need to predict engine-out soot particle size distributions (PSDs) to meet future regulations. This paper presents an approach based on Incompletely Stirred Reactor Network (ISRN) modeling that simplifies calculations, allowing for the use of very complex chemistry and soot models. The method relies on a network of Incompletely Stirred Reactors (ISRs), which are inhomogeneous in terms of mixture fraction but characterized by homogeneous conditional averages, with the conditioning performed on the mixture fraction. The ISRN approach is demonstrated here for a single sector lean-burn model combustor operating on Jet-A1 fuel in pilot-only mode, for which detailed CFD and experimental data are available. Results show that reasonable accuracy is obtained at a significantly reduced computational cost. Real fuel chemistry and a detailed physicochemical sectional soot model are consequently employed to investigate the sensitivity of ISRN predictions to the chemical mechanism chosen and to provide an estimate of the soot particle size distribution at the combustor exit.

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