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Open Citations Database
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Citation Details
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Title:
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Dual-bed catalytic system for the selective reduction of NOx with propene
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Category(s):
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Non-Ammonia/Urea SCR
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Author(s):
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J.A. Moulijn
Javier Perez-Rami
Antonio R. Vaccaro
Freek Kapteijn
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Journal:
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Chemical Engineering and Technology
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Publisher:
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Wiley-VCH Verlag GmbH, Weinheim, Ger
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Year:
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2000
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Pages:
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721-725
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Volume:
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23
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Abstract:
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For the removal of NOx from exhausts containing excess oxygen, the selective catalytic reduction of NOx using hydrocarbons (HC-SCR) is highly interesting, especially for car applications (lean deNOx). Two types of HC-SCR catalysts can be distinguished. High-temperature catalysts operate at temperatures above 573 K, showing moderate activity, and (mostly) low heat and poison resistance, but high N2 selectivity. Low-temperature catalysts, usually based on Pt, operate between 473 and 573 K, showing opposite features: very high activity, as well as heat and poison resistance, and a low N2 selectivity by forming N2O. Our strategy for developing an active and stable deNOx system without N2O emission is the implementation of a separate catalytic function for N2O removal as a second stage.
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Times Viewed:
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1185
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Submitter Details
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Name:
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Vitaly Prikhodko
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Email:
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prikhodkovy@ornl
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Organization:
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Oak Ridge National Laboratory
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Date Submitted:
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2002-10-08
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