Oxidation of ammonia over a copper oxide-containing solid oxygen carrier with oxygen uncoupling capability
Artikel i vetenskaplig tidskrift, 2016

Measurements and modelling of the oxidation of ammonia over copper oxide (CuO) under conditions relevant to chemical-looping combustion with oxygen uncoupling show that CuO fully converts NH3 into NO or N-2 under most of these conditions. Our experiments demonstrate that considerable amounts of NO are formed when the oxygen carrier is fully oxidised. Decreasing the degree of oxidation of the oxygen carrier affected the selectivity of the NH3 oxidation towards NO. Ageing of the oxygen carrier had a similar effect. Modelling suggests that these results reflect a change in the rate of oxygen release from the CuO particles.

Nitrogen oxides

Ammonia oxidation

Solid oxygen carrier

Copper oxide

Oxygen uncoupling

Författare

Fredrik Normann

Chalmers, Energi och miljö, Energiteknik

M. Cheng

Dongmei Zhao

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Z. S. Li

N. S. Cai

Henrik Leion

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Combustion and Flame

0010-2180 (ISSN)

Vol. 165 445-452

Ämneskategorier

Kemiteknik

DOI

10.1016/j.combustflame.2015.12.029

Mer information

Skapat

2017-10-07