NO2 catalytic formation, consumption, and efflux in various types of diesel particulate filter

2021 ◽  
Author(s):  
Chao Zhong ◽  
Jinke Gong ◽  
Shaoli Wang ◽  
Jiqiu Tan ◽  
Junan Liu ◽  
...  
Keyword(s):  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Diesel Particulate

Successful application of a diesel particulate filter system at Vale’s Creighton mine

CIM Journal ◽  
2015 ◽  
Vol 6 (4) ◽  
pp. 227-232 ◽  
Author(s):  
J. S. Stachulak ◽  
C. Allen ◽  
V. Hensel
Keyword(s):  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Diesel Particulate ◽  
Filter System

Comparative analysis on the effects of diesel particulate filter and selective catalytic reduction systems on a wide spectrum of chemical species emissions

2018 ◽  
Author(s):  
Z. Gerald Liu ◽  
Devin R. Berg ◽  
Thaddeus A. Swor ◽  
James J. Schauer‡
Keyword(s):  
Diesel Engine ◽  
Selective Catalytic Reduction ◽  
Diesel Particulate Filter ◽  
Catalytic Reduction ◽  
Wide Spectrum ◽  
Chemical Species ◽  
Pollutant Emissions ◽  
Particulate Filter ◽  
Diesel Particulate ◽  
Aftertreatment Systems

Two methods, diesel particulate filter (DPF) and selective catalytic reduction (SCR) systems, for controlling diesel emissions have become widely used, either independently or together, for meeting increasingly stringent emissions regulations world-wide. Each of these systems is designed for the reduction of primary pollutant emissions including particulate matter (PM) for the DPF and nitrogen oxides (NOx) for the SCR. However, there have been growing concerns regarding the secondary reactions that these aftertreatment systems may promote involving unregulated species emissions. This study was performed to gain an understanding of the effects that these aftertreatment systems may have on the emission levels of a wide spectrum of chemical species found in diesel engine exhaust. Samples were extracted using a source dilution sampling system designed to collect exhaust samples representative of real-world emissions. Testing was conducted on a heavy-duty diesel engine with no aftertreatment devices to establish a baseline measurement and also on the same engine equipped first with a DPF system and then a SCR system. Each of the samples was analyzed for a wide variety of chemical species, including elemental and organic carbon, metals, ions, n-alkanes, aldehydes, and polycyclic aromatic hydrocarbons, in addition to the primary pollutants, due to the potential risks they pose to the environment and public health. The results show that the DPF and SCR systems were capable of substantially reducing PM and NOx emissions, respectively. Further, each of the systems significantly reduced the emission levels of the unregulated chemical species, while the notable formation of new chemical species was not observed. It is expected that a combination of the two systems in some future engine applications would reduce both primary and secondary emissions significantly.

Numerical design of the diesel particulate filter for optimum thermal performances during regeneration

2009 ◽  
Vol 86 (7-8) ◽  
pp. 1124-1135 ◽  
Author(s):  
Sang-Jin Lee ◽  
Soo-Jeong Jeong ◽  
Woo-Seung Kim
Keyword(s):  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Diesel Particulate ◽  
Numerical Design

Engine Tests of an Active Diesel Particulate Filter Regeneration System

2006 ◽  
Author(s):  
Sarento G. Nickolas ◽  
Andrea D. White ◽  
Adam J. Kotrba ◽  
Argun Yetkin
Keyword(s):  
Diesel Particulate Filter ◽  
Particulate Filter ◽  
Regeneration System ◽  
Diesel Particulate ◽  
Filter Regeneration
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