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Application of Cu-exchanged chabazite catalysts for Urea-SCR of NOx in diesel engines is limited to some extent by catalyst deactivation with hydrocarbons (HCs). In this work, catalytic activity of commercial Cu-SSZ-13 catalysts with or without propene for selective catalytic reduction of NOx with ammonia (NH3-SCR) was tested, and results showed that the DeNOx activity was obviously inhibited in the...
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