e-journal

Power-bench demonstration of the Pt-catalysed C3H6-SCR of NOx in a diesel exhaust

---

Abstract.
The SCR of NOx by C3H6 using a 0.1 wt.% Pt/Al2O3 catalyst has been successfully performed under real
diesel gas streams in a power bench. The influence of some experimental variables affecting NOx, CO, and
THC conversions, such as hydrocarbon concentration, reaction temperature and space velocity effect, are
discussed. 96% NOx conversion has been reached under optimum conditions. The highest NOx
conversion level is maintained in the range 250–325 8C but slightly higher temperature (350 8C) is
desired to ensure a stable temperature and complete CO and THC removal. An optimum THC
concentration is found (1500 ppm THC), higher THC concentration having a negative effect in the NOx
conversion. From experiments performed at different GHSV, the reactor volume required for total NOx
removal in a real exhaust stream has been estimated to be 6.5 L. Additionally, the effect of CeO2 on
platinum behaviour has been studied, concluding that it enhances N2 formation as NOx reduction
product with respect to N2O, but lowers the platinum activity for NOx reduction and CO and THC
oxidation.

Keywords: Pt catalyst, SCR, DeNOx, Diesel, Power-bench, CeO2.

---

Ketersediaan

Tidak ada salinan data

Informasi Detail

Judul Seri

Applied Catalysis A: General

No. Panggil

-

Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Applied Catalysis A: General 354 (2009) 63–71

Bahasa

English

ISBN/ISSN

-

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

KIMIA

Info Detail Spesifik

-

Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar