Identification and evaluation of the redox properties of the v species in the V-Ce-O catalysts used in the elimination of diesel soot particles

2005 ◽  
Author(s):  
J. Matta ◽  
D. Courcot ◽  
E. Abi-aad ◽  
A. Aboukais
Keyword(s):  
Diesel Soot ◽  
Redox Properties ◽  
Soot Particles

OPTICAL PROPERTIES OF AIRBORNE DIESEL SOOT PARTICLES

2001 ◽  
Vol 32 ◽  
pp. 421-422
Author(s):  
K.-H. NAUMANN ◽  
H. SAATHOFF ◽  
M. SCHNAITER ◽  
U. SCHURATH
Keyword(s):  
Optical Properties ◽  
Diesel Soot ◽  
Soot Particles

Impact of multi-injection strategies on morphology, nanostructure and oxidation reactivity of diesel soot particles

2022 ◽  
Vol 237 ◽  
pp. 111854
Author(s):  
Xingyu Liang ◽  
Bowen Zhao ◽  
Kun Wang ◽  
Xu Lv ◽  
Yajun Wang ◽  
...  
Keyword(s):  
Diesel Soot ◽  
Soot Particles ◽  
Oxidation Reactivity ◽  
Injection Strategies

scholarly journals Copper doped BaMnO3 perovskite catalysts for NO oxidation and NO2-assisted diesel soot removal

RSC Advances ◽  
2017 ◽  
Vol 7 (56) ◽  
pp. 35228-35238 ◽  
Author(s):  
Verónica Torregrosa-Rivero ◽  
Vicente Albaladejo-Fuentes ◽  
María-Salvadora Sánchez-Adsuar ◽  
María-José Illán-Gómez
Keyword(s):  
Perovskite Structure ◽  
Active Catalyst ◽  
Soot Oxidation ◽  
Diesel Soot ◽  
Redox Properties ◽  
No Oxidation ◽  
Perovskite Catalysts

BaMn0.7Cu0.3O3 is the most active catalyst for NO2 generation and soot oxidation. This behavior is a result of the enhancement of the redox properties of the catalyst due to the replacement of Mn(iii)/Mn(iv) by Cu(ii) in the perovskite structure.

Catalytic combustion of diesel soot particles. Activity and characterization of Co/MgO and Co,K/MgO catalysts

1998 ◽  
Vol 15 (1-2) ◽  
pp. 5-19 ◽  
Author(s):  
C.A. Querini ◽  
M.A. Ulla ◽  
F. Requejo ◽  
J. Soria ◽  
U.A. Sedrán ◽  
...  
Keyword(s):  
Catalytic Combustion ◽  
Diesel Soot ◽  
Soot Particles

scholarly journals Combustion characteristics of water-insoluble elemental and organic carbon in size selected ambient aerosol particles

2005 ◽  
Vol 5 (7) ◽  
pp. 1905-1913 ◽  
Author(s):  
K. Wittmaack
Keyword(s):  
Organic Carbon ◽  
Ambient Air ◽  
Diesel Soot ◽  
Water Soluble ◽  
Soot Combustion ◽  
Complete Combustion ◽  
Ambient Aerosol ◽  
Soot Particles ◽  
Inorganic Oxides ◽  
Wide Range

Abstract. Combustion of elemental carbon (EC) and organic carbon (OC) contained in ambient aerosol matter was explored using scanning electron microscopy (SEM) in combination with energy dispersive X-ray analysis (EDX). To ease identification of the particles of interest and to avoid or at least reduce interaction with simultaneously sampled inorganic oxides and salts, the approach used in this work differed in two ways from commonly applied procedures. First, rather than using a mixture of particles of vastly different sizes, as in PM10 or PM2.5, aerosol matter was collected in a 5-stage impactor. Second, the water soluble fraction of the collected matter was removed prior to analysis. Diesel soot particles, which appeared in the well-known form of chain-type aggregates, constituted the major fraction of EC. In contrast, OC containing particles were observed in a variety of shapes, including a sizable amount of bioaerosol matter appearing mostly in the size range above about 1 µm. During heating in ambient air for 1h, diesel soot particles were found to be stable up to 470°C, but complete combustion occurred in a narrow temperature interval between about 480 and 510°C. After diesel soot combustion, minute quantities of "ash" were observed in the form of aggregated tiny particles with sizes less than 10 nm. These particles could be due to elemental or oxidic contaminants of diesel soot. Combustion of OC was observed over a wide range of temperatures, from well below 200°C to at least 500°C. Incompletely burnt bioaerosol matter was still found after heating to 600°C. The results imply that the EC fraction in aerosol matter can be overestimated significantly if the contribution of OC to a thermogram is not well separated.

scholarly journals Modeling And Designing Simulation Using CFD Computational Fluid Dynamics Application For The Process Of Capture Diesel Soot Particles By Hydro Cyclone

2019 ◽  
Vol 26 (3) ◽  
pp. 105-111
Author(s):  
Mai Hanna Shahda ◽  
Mahmod Alfattamah ◽  
Youssef Johar
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Flow Simulation ◽  
Diesel Soot ◽  
Product Performance ◽  
Diesel Generator ◽  
Soot Particles ◽  
Fluid Forces ◽  
Computational Fluid Dynamics Cfd ◽  
The Impact

The research aims to predict the efficiency of capturing the soot particles generated by the diesel generator within the Hydro Cyclone by conducting the applied study using the Computational Fluid Dynamics (CFD) application through modeling and simulation of the turbulent flow within the Hydro Cyclone using SOLIDWORKS Flow Simulation. The ability to predict the impact of such flows on your product performance is time consuming and costly without some form of simulation tools...SOLIDWORKS Flow Simulation uses Computational Fluid Dynamics (CFD) analysis to enable quick, efficient simulation of fluid flow and can easily calculate fluid forces and help the designer to understand the impact of a liquid or gas on product performance and comparing the results with experimental reality. In this research, the engineering simulation confirmed the importance of using Hydro Cyclone in the capture of diesel soot particles by an error rate of only 4% compared to experimental reality.

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