Mercedes 1.7-liter DOC+LNT Sulfation/deSulfation study with intracatalyst speciation

Shean  Huff, Oak Ridge National Laboratory


Category: Engine and Vehicles Data
Technology: DOC (Diesel Oxidation Catalyst), LNT (Lean NOx Trap)

Description:

Exhaust speciation of a DOC+LNT system including intracatalyst samples. The catalyst was examined in the following Sulfur loaded states: (1) Fresh, (2) Mildly Sulfated [i.e., 2900 miles], (3) Moderately Sulfated [i.e., 5300 miles], (4) Heavily Sulfated [i.e., 9100 miles], and (5) deSulfated. Mercedes 1.7l engine operated with in-cylinder rich mode for LNT regeneration. Data from two strategies ("DEM" and "P80"). Exhaust speciation includes NOx, NO, CO, CO2, HC, H2, and O2. Experiments conducted at ORNL as part of DOE sponsored "Measurement and Characterization of NOx Adsorber Regeration and Desulfation" project.

Readme File: CLEERS_DOC_LNT_Dec2006_Readme.pdf

Data Files:
ORNL_MECA_1_LNT_Fresh_CLEERS_site.xls
ORNL_MECA_1_LNT_ModerateSulfation_CLEERS_site.xls
ORNL_MECA_1_LNT_MildSulfation_CLEERS_site.xls
ORNL_MECA_1_LNT_HeavilySulfated_CLEERS_site.xls
ORNL_MECA_1_LNT_DeSulfated_CLEERS_site.xls

Submission Date: 2007-04-26