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Plasmachemical Trace-Oxygen Removal in a Coke Oven Gas with a Coaxial Packed-Bed-DBD Reactor |
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| Authors: | Tim Nitsche Marcus Budt Ulf-Peter Apfel |
| Affiliation: | 1. Fraunhofer Institute for Environmental, Safety, and Energy Technology UMSICHT, Osterfelder Straße 3, 46047 Oberhausen, Germany;2. Fraunhofer Institute for Environmental, Safety, and Energy Technology UMSICHT, Osterfelder Straße 3, 46047 Oberhausen, Germany
Ruhr-University Bochum, Inorganic Chemistry 1, Universitätsstraße 150, 44780 Bochum, Germany |
| Abstract: | 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. |
| Keywords: | Coaxial dielectric barrier discharge Coke oven gas Nonthermal plasma Oxygen removal Packed-bed dielectric barrier discharge |