Diesel Oxidation Catalyst and HC Investigations of a Low RON Gasoline Fuel in a Compression Ignition Engine

2017 ◽  
Author(s):  
Christophe Chaillou ◽  
Alexandre Bouet ◽  
Arnaud Frobert ◽  
Florence Duffour
Keyword(s):  
Diesel Oxidation Catalyst ◽  
Oxidation Catalyst ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Diesel Oxidation

Diesel Oxidation Catalyst Control of Hydrocarbon Aerosols From Reactivity Controlled Compression Ignition Combustion

2011 ◽  
Author(s):  
Vitaly Y. Prikhodko ◽  
Scott J. Curran ◽  
Teresa L. Barone ◽  
Samuel A. Lewis ◽  
John M. Storey ◽  
...  
Keyword(s):  
Combustion Process ◽  
Diesel Oxidation Catalyst ◽  
Oxidation Catalyst ◽  
Hydrocarbon Emissions ◽  
Compression Ignition ◽  
Reactivity Controlled Compression Ignition ◽  
Diesel Oxidation ◽  
Homogeneous Combustion ◽  
Compression Ignition Combustion ◽  
And Control

Reactivity Controlled Compression Ignition (RCCI) is a novel combustion process that utilizes two fuels with different reactivity to stage and control combustion and enable homogeneous combustion. The technique has been proven experimentally in previous work with diesel and gasoline fuels; low NOx emissions and high efficiencies were observed from RCCI in comparison to conventional combustion. In previous studies on a multi-cylinder engine, particulate matter (PM) emission measurements from RCCI suggested that hydrocarbons were a major component of the PM mass. Further studies were conducted on this multi-cylinder engine platform to characterize the PM emissions in more detail and understand the effect of a diesel oxidation catalyst (DOC) on the hydrocarbon-dominated PM emissions. Results from the study show that the DOC can effectively reduce the hydrocarbon emissions as well as the overall PM from RCCI combustion. The bimodal size distribution of PM from RCCI is altered by the DOC which reduces the smaller mode 10 nm size particles.

Development of a Low Emissions Upgrade Kit for EMD GP20D and GP15D Locomotives

2012 ◽  
Author(s):  
Steven G. Fritz ◽  
John C. Hedrick ◽  
Tom Weidemann
Keyword(s):  
Fuel Injection ◽  
Diesel Oxidation Catalyst ◽  
Oxidation Catalyst ◽  
Particulate Filter ◽  
Injection Timing ◽  
Fuel Injection Timing ◽  
Tier 1 ◽  
Emission Regulations ◽  
Diesel Oxidation ◽  
Tier 3

This paper describes the development of a low emissions upgrade kit for EMD GP20D and GP15D locomotives. These locomotives were originally manufactured in 2001, and met EPA Tier 1 locomotive emission regulations. The 1,491 kW (2,000 HP) EMD GP20D locomotives are powered by Caterpillar 3516B engines, and the 1,119 kW (1,500 HP) EMD GP15D locomotives are powered by Caterpillar 3512B engines. CIT Rail owns a fleet of 50 of these locomotives that are approaching their mid-life before first overhaul. Baseline exhaust emissions testing was followed by a low emissions retrofit development focusing on fuel injection timing, crankcase ventilation filtration, and application of a diesel oxidation catalyst (DOC), and then later a diesel particulate filter (DPF). The result was a EPA Tier 0+ certification of the low emissions upgrade kit, with emission levels below EPA Line-Haul Tier 3 NOx, and Tier 4 HC, CO, and PM levels.

Analysis techniques for diesel oxidation catalyst aging phenomena

MTZ worldwide ◽  
2010 ◽  
Vol 71 (6) ◽  
pp. 36-41
Author(s):  
Alexander Winkler ◽  
Davide Ferri ◽  
Eth Panayotis Dimopoulos Eggenschwiler ◽  
Myriam Aguirre
Keyword(s):  
Diesel Oxidation Catalyst ◽  
Oxidation Catalyst ◽  
Analysis Techniques ◽  
Diesel Oxidation ◽  
Catalyst Aging ◽  
Aging Phenomena
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