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NOx adsorber and method of regenerating same [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2007.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Additional Creators
United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
New technologies, such as NOx adsorber catalytic converters, are being used to meet increasingly stringent regulations on undesirable emissions, including NOx emissions. NOx adsorbers must be periodically regenerated, which requires an increased fuel consumption. The present disclosure includes a method of regenerating a NOx adsorber within a NOx adsorber catalytic converter. At least one sensor positioned downstream from the NOx adsorber senses, in the downstream exhaust, at least one of NOx, nitrous oxide and ammonia concentrations a plurality of times during a regeneration phase. The sensor is in communication with an electronic control module that includes a regeneration monitoring algorithm operable to end the regeneration phase when a time rate of change of the at least one of NOx, nitrous oxide and ammonia concentrations is after an expected plateau region begins.
Report Numbers
E 1.99:7,168,243
7,168,243
Subject(s)
Note
Published through SciTech Connect.
01/30/2007.
"7,168,243"
"US patent application 11/074,402"
Endicott, Dennis L. (Peoria, IL); Verkiel, Maarten (Metamora, IL); Driscoll, James J. (Dunlap, IL).
Caterpillar Inc (Peoria, IL)
Funding Information
FC05-00OR22806
View MARC record | catkey: 24047570