Plasmachemical Trace-Oxygen Removal in a Coke Oven Gas with a Coaxial Packed-Bed-DBD Reactor

Nitsche, T. and Budt, M. and Apfel, U.-P.

Volume: 92 Pages: 1559-1566
DOI: 10.1002/cite.202000052
Published: 2020

The trace-O2 removal in coke oven gas, which enables better utilization of its contained H2, is investigated with combinations of atmospheric nonthermal plasma and a Pt/γ-Al2O3 catalyst. Herein it is shown that a coaxial packed-bed dielectric barrier discharge (DBD) reactor removes up to 80 % O2 in a model coke oven gas. Along this line, the H2 content and the usage of Al2O3 granules in the plasma zone have been identified as major factors for the plasmachemical trace-O2 conversion. In contrast to the Pt/γ-Al2O3 catalyst, nonthermal plasma converts trace O2 at coke oven gas temperatures below 100 °C. © 2020 The Authors. Published by Wiley-VCH GmbH

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