Influence of the type of reducing agent (H2, CO, C3H6 and C3H8) on the reduction of stored NOX in a Pt/BaO/Al2O3 model catalyst
Artikel i vetenskaplig tidskrift, 2004

In this investigation, a comparative study for a NOx storage catalytic system was performed focusing on the parameters that affect the reduction by using different reductants (H2, CO, C3H6 and C3H8) and different temperatures (350, 250 and 150 degrees C), for a Pt/BaO/Al2O3 catalyst. Transient experiments show that H2 and CO are highly efficient reductants compared to C3H6 which is somewhat less efficient. H2 shows a significant reduction effect at relatively low temperature (150 degrees C) but with a low storage capacity. We find that C3H8 does not show any NOx reduction ability for NOx stored in Pt/BaO/Al2O3 at any of the temperatures. The formation of ammonia and nitrous oxide is also discussed.

3-WAY CATALYST

STORAGE-REDUCTION

LEAN-BURN CONDITIONS

BEHAVIOR

ENGINE

STORAGE

SULFUR DEACTIVATION

HYDROCARBONS

RELEASE

NITROGEN-OXIDES

NOx

Författare

Hussam Abdulhamid

Chalmers, Institutionen för material- och ytkemi, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Erik Fridell

Kompetenscentrum katalys (KCK)

Chalmers, Teknisk fysik, Kemisk fysik

Magnus Skoglundh

Chalmers, Institutionen för material- och ytkemi, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Topics in Catalysis

1022-5528 (ISSN) 1572-9028 (eISSN)

Vol. 30-31 161-168

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Nanovetenskap och nanoteknik

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