DEMONSTRATION OF POTENTIAL FOR SELECTIVE CATALYTIC REDUCTION AND DIESEL PARTICULATE FILTERS

Conference · Sun Aug 24 04:00:00 EDT 2003

OSTI ID:828944

McGILL, R; KHAIR, M; SHARP, C

This project addresses the potential for Selective Catalytic Reduction (SCR) devices (using urea as reductant) together with Diesel Particulate Filters (DPF) and low-pressure loop exhaust gas recirculation (EGR) to achieve future stringent emissions standards for heavy-duty engines powering Class 8 vehicles. Two emission control systems consisting of the three technologies (EGR, SCR, and DPF) were calibrated on a Caterpillar C-12 heavy-duty diesel engine. Results of these calibrations showed good promise in meeting the 2010 heavy-duty emission standards as set forth by the Environmental Protection Agency (EPA). These two emission control systems were developed to evaluate a series of fuels that have similar formulations except for their sulfur content. Additionally, one fuel, code-named BP15, was also evaluated. This fuel was prepared by processing straight-run distillate stocks through a commercial, single stage hydrotreater employing high activity catalyst at maximum severity. An additional goal of this program is to provide data for an on-going EPA technology review that evaluates progress toward meeting 2007/2010 emission standards. These emissions levels were to be achieved not only on the transient test cycles but in other modes of operation such as the steady-state Euro-III style emission test known as the OICA (Organisation Internationale des Compagnies d'Automobiles) or the ESC (European Stationary Cycle). Additionally, hydrocarbon and carbon monoxide emissions standards are to be met.

• Research Organization: Oak Ridge National Lab., Oak Ridge, TN; Southwest Research Institute (US)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EE) (US)
• OSTI ID: 828944
• Report Number(s): CONF-200308--103
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
CARBON MONOXIDE
CATALYSTS
CONTROL SYSTEMS
DIESEL ENGINES
DISTILLATES
EMISSION
ENGINES
HYDROCARBONS
PARTICULATES
PROCESSING
SELECTIVE CATALYTIC REDUCTION
SULFUR CONTENT
TRANSIENTS
UREA
US EPA