Abu-Jrai, AM,Yamin, JA,Ibrahim, KA,Al-Khashman, OA,Al-Shaweesh, MA,Hararah, MA,Rashid, U,Ahmad, M,Walker, GM,Al-Muhtaseb, AH

2014

July

Journal Of Industrial And Engineering Chemistry

NOx removal efficiency and N-2 selectivity during selective catalytic reduction processes over Al2O3 supported highly cross-linked polyethylene catalysts

Published

()

NOx reduction Selective catalytic reduction Highly cross-linked polyethylene Polymer catalysts Exhaust gas recirculation EXHAUST-GAS EMISSIONS GROUP METAL-CATALYSTS LEAN-BURN CONDITIONS DIESEL H-2 HYDROCARBONS REDUCTANTS PT/AL2O3 SCR CO2

20

1650

1655

The performance of a highly cross-linked polyethylene catalyst supported on alumina for low temperature selective catalytic reduction of NOx by unburned hydrocarbons (HCs) existing in an exhaust gas was examined at different engine conditions with the addition of exhaust-gas recirculation. The HXPE catalyst was shown to exhibit good NOx reduction activity at low temperatures (100-250 degrees C) where the only reductant was the unburned HC, which was already present in the exhaust flow. The maximum NOx reduction of approximately 52% was achieved at a temperature of 150 degrees C. HXPE demonstrated very good selectivity toward N-2 in the majority of tested conditions (similar to 80%). (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

10.1016/j.jiec.2013.08.012