Combined removal of diesel soot particulates and NOx over CeO2–ZrO2 mixed oxides
نویسندگان
چکیده
منابع مشابه
Nox and Diesel Soot Abatement over Catalytic Traps Based on Mixed Trasition Metal Oxides
Nanostructured perovskite-type oxides catalysts La1-xAxNi1-yByO3 (where A = Na, K, Rb and B = Cu; x = 0, 0.2 and y = 0, 0.05, 0.1), prepared by the solution combustion synthesis method and characterized by BET, XRD, FESEM, and catalytic activity tests in microreactors, proved to be effective in the simultaneous removal of soot and NO, the two prevalent pollutants in diesel exhaust gases in the ...
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Introduction Soot particles and NOx are the main pollutants from diesel engines. Good alternatives to abate these contaminants are the use of catalytic filters, which burn the soot particles, and NOx traps which adsorb the NOx during normal operation and released them during reduction cycles [1]. We recently studied BaK/CeO2 catalysts for this application[2]. Barium plays the role of NOx adsorb...
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This paper is presented to study the combustion process and emissions in a direct injection diesel engine. Computations are carried out using a three-dimensional model for flows, sprays, combustion and emissions in Diesel engines. Interactions between combustion and emissions with flow field are considered and it is shown that soot mass fraction increases at regions with low turbulence inten...
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the no removal over oxide sorbents (k2o/al2o3 , cao/al2o3 and bao/al2o3) at a loading of up to 25 wt.% was investigated using a synthetic diesel exhaust gas containing 1,000 ppm no, 1000 ppm iso-butane (i-c4h10), 8% o2 and n2 balance. the reactor was operated at 250 oc to 450 oc for the activity study. no was effectively stored (removal efficiencies between 30-60 %) as nitrate under experimen...
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ژورنال
عنوان ژورنال: Journal of Catalysis
سال: 2008
ISSN: 0021-9517
DOI: 10.1016/j.jcat.2008.07.016