Treatment of nox sorber regeneration gas
OwnerEive Tord Allansson, Anders Andreasson +1inventors
InventorsEive Tord Allansson, Anders Andreasson, Mats Lavenius
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Abstract
A method of treating an exhaust gas of a lean-burn reciprocating engine includes sorbing NOx on at least one NOx sorber when the exhaust gas is lean, intermittently contacting the at least one NOx sorber with an agent effective to convert NOx to N2, thereby to regenerate the at least one NOx sorber and feeding effluent of said intermittent contacting step to the engine inlet.
Claims24
A method of treating an exhaust gas of a lean-burn reciprocating engine containing NOx, which method comprising sorbing NOx on at least one NOx sorber when the exhaust gas is lean, intermittently contacting the at least one NOx sorber with an agent effective to convert NOx to N2 thereby to regenerate the at least one NOx sorber and feeding effluent from said intermittent contacting step to an engine inlet.
A lean-burn reciprocating engine emitting exhaust gas containing NOx and having a treatment system comprising at least one NOx sorber for sorbing NOx when the exhaust gas is lean, means for intermittently contacting the at least one NOx sorber with an agent effective to convert NOx to N2 to regenerate the at least one NOx sorber and means for feeding effluents from said intermittently contacting step to an engine inlet.
Dependencies are inferred from the claim text.