Sulfur tolerant lean NOx trap
An integrated lean NOx trap. The integrated lean NOx trap includes a lean NOx trap containing a composite metal oxide mixture consisting essentially of about 80-100 wt % stoichiometric spinel MgAl2O4 and between about 0-20 wt % of CeO2 or CeO2&#8212;ZrO2. A method for removing NOx and SOx impurities from exhaust gases using the integrated lean NOx trap is also described.
Ford Global Technologies, LLC
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Robert J. William Lewis Henderson Jun (John) Diane L. Mohinder Singh
Kudla Watkins Li Guttridge Chattha