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open access

Future Automotive Aftertreatment Solutions: The 150°C Challenge Workshop Report

Description: With future fuel economy standards enacted, the U.S. automotive manufacturers (OEMs) are committed to pursuing a variety of high risk/highly efficient stoichiometric and lean combustion strategies to achieve superior performance. In recognition of this need, the U.S. Department of Energy (DOE) has partnered with domestic automotive manufacturers through U.S. DRIVE to develop these advanced technologies. However, before these advancements can be introduced into the U.S. market, they must also be… more
Date: October 15, 2013
Creator: Zammit, Michael; DiMaggio, Craig L.; Kim, Chang H.; Lambert, Christine; Muntean, George G.; Peden, Charles HF et al.
Partner: UNT Libraries Government Documents Department
open access

Sulfur Management of NOx Adsorber Technology for Diesel Light-Duty Vehicle and Truck Applications

Description: Sulfur poisoning from engine fuel and lube is one of the most recognizable degradation mechanisms of a NOx adsorber catalyst system for diesel emission reduction. Even with the availability of 15 ppm sulfur diesel fuel, NOx adsorber will be deactivated without an effective sulfur management. Two general pathways are currently being explored for sulfur management: (1) the use of a disposable SOx trap that can be replaced or rejuvenated offline periodically, and (2) the use of diesel fuel injecti… more
Date: October 1, 2003
Creator: Fang, Howard L.; Wang, Jerry C.; Yu, Robert C. (Cummins, Inc.); Wan, C. Z. (Engelhard Corp.) & Howden, Ken (U.S. Dept. of Energy)
Partner: UNT Libraries Government Documents Department
open access

Final Report of a CRADA Between Pacific Northwest National Laboratory and the General Motors Company (CRADA No. PNNL/271): “Degradation Mechanisms of Urea Selective Catalytic Reduction Technology”

Description: Diesel engines can offer substantially higher fuel efficiency, good driving performance characteristics, and reduced carbon dioxide (CO2) emission compared to stoichiometric gasoline engines. Despite the increasing public demand for higher fuel economy and reduced dependency on imported oil, however, meeting the stringent emission standards with affordable methods has been a major challenge for the wide application of these fuel-efficient engines in the US market. The selective catalytic reduct… more
Date: December 13, 2011
Creator: Kim, Do Heui; Lee, Jong H.; Peden, Charles HF; Howden, Ken; Kim, Chang H.; Oh, Se H. et al.
Partner: UNT Libraries Government Documents Department
open access

Final Report of a CRADA Between Pacific Northwest National Laboratory and the Ford Motor Company (CRADA No. PNNL/265): “Deactivation Mechanisms of Base Metal/Zeolite Urea Selective Catalytic Reduction Materials, and Development of Zeolite-Based Hydrocarbon Adsorber Materials”

Description: Reducing NOx emissions and particulate matter (PM) are primary concerns for diesel vehicles required to meet current LEV II and future LEV III emission standards which require 90+% NOx conversion. Currently, urea SCR as the NOx reductant and a Catalyzed Diesel Particulate Filter (CDPF) are being used for emission control system components by Ford Motor Company for 2010 and beyond diesel vehicles. Because the use of this technology for vehicle applications is new, the relative lack of experience… more
Date: February 14, 2013
Creator: Gao, Feng; Kwak, Ja Hun; Lee, Jong H.; Tran, Diana N.; Peden, Charles HF; Howden, Ken et al.
Partner: UNT Libraries Government Documents Department
open access

A Fundamental Consideration on NOx Adsorber Technology for DI Diesel Application

Description: Diesel engines are far more efficient than gasoline engines of comparable size, and emit less greenhouse gases that have been implicated in global warming. In 2000, the US EPA proposed very stringent emissions standards to be introduced in 2007 along with low sulfur (< 15 ppm) diesel fuel. The California Air Resource Board (CARB) has also established the principle that future diesel fueled vehicles should meet the same low emissions standards as gasoline fueled vehicles and the EPA followed sui… more
Date: October 1, 2002
Creator: Fang, Howard L.; Huang, Shyan C.; Yu, Robert C. (Cummins, Inc.); Wan, C. Z. (Engelhard Corp.) & Howden, Ken (U.S. Dept. of Energy)
Partner: UNT Libraries Government Documents Department
open access

Non-Thermal Plasma System Development for CIDI Exhaust Aftertreatment

Description: There is a need for an efficient, durable technology to reduce NOx emissions from oxidative exhaust streams such as those produced by compression-ignition, direct injection (CIDI) diesel or lean-burn gasoline engines. A partnership formed between the DOE Office of Advanced Automotive Technology, Pacific Northwest National Laboratory, Oak Ridge National Laboratory and the USCAR Low Emission Technologies Research and Development Partnership is evaluating the effectiveness of a non-thermal plasma … more
Date: April 2000
Creator: Balmer, M. Lou; Tonkyn, Russell; Maupin, Gary; Yoon, Steven; Kolwaite, Ana; Barlow, Stephen et al.
Partner: UNT Libraries Government Documents Department
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