Oxidation of ammonia over a copper oxide-containing solid oxygen carrier with oxygen uncoupling capability
Journal article, 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

Author

Fredrik Normann

Chalmers, Energy and Environment, Energy Technology

M. Cheng

Dongmei Zhao

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Z. S. Li

N. S. Cai

Henrik Leion

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Combustion and Flame

0010-2180 (ISSN)

Vol. 165 445-452

Subject Categories

Chemical Engineering

DOI

10.1016/j.combustflame.2015.12.029

More information

Created

10/7/2017