Role of hydrogen formation and silver phase for methanol-SCR over silver/alumina
Artikel i vetenskaplig tidskrift, 2015

Formation of reaction products over silver/alumina during lean NOx reduction with methanol was studied, with and without addition of hydrogen to the feed. The silver phase in silver/alumina was analyzed by UV–vis spectroscopy in order to elucidate the influence of silver loading and different gas environments. Formation of molecular hydrogen and reduction of supported silver species were observed during selective catalytic reduction (SCR) with methanol, without hydrogen in the feed. This availability of hydrogen and the reduction of silver are suggested to contribute to the high low-temperature activity connected to oxygenates (like alcohols) as reducing agents for NOx.

Lean NOx reduction

Hydrogen

Methanol

Ag/Al2O3

Silver phase

Författare

Marika Männikkö

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Magnus Skoglundh

Kompetenscentrum katalys (KCK)

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Teknisk ytkemi

Hanna Härelind

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Catalysis Today

0920-5861 (ISSN)

Vol. 258 454-460

Drivkrafter

Hållbar utveckling

Styrkeområden

Nanovetenskap och nanoteknik

Transport

Energi

Materialvetenskap

Ämneskategorier

Fysikalisk kemi

Kemiska processer

DOI

10.1016/j.cattod.2014.11.029

Mer information

Skapat

2017-10-07