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Plasmachemical Trace‐Oxygen Removal in a Coke Oven Gas with a Coaxial Packed‐Bed‐DBD Reactor
Author(s) -
Nitsche Tim,
Budt Marcus,
Apfel UlfPeter
Publication year - 2020
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.202000052
Subject(s) - dielectric barrier discharge , coke , packed bed , coaxial , chemistry , nonthermal plasma , catalysis , plasma , oxygen , analytical chemistry (journal) , waste management , chemical engineering , environmental chemistry , chromatography , electrode , organic chemistry , physics , quantum mechanics , electrical engineering , engineering
The trace‐O 2 removal in coke oven gas, which enables better utilization of its contained H 2 , is investigated with combinations of atmospheric nonthermal plasma and a Pt/ γ ‐Al 2 O 3 catalyst. Herein it is shown that a coaxial packed‐bed dielectric barrier discharge (DBD) reactor removes up to 80 % O 2 in a model coke oven gas. Along this line, the H 2 content and the usage of Al 2 O 3 granules in the plasma zone have been identified as major factors for the plasmachemical trace‐O 2 conversion. In contrast to the Pt/ γ ‐Al 2 O 3 catalyst, nonthermal plasma converts trace O 2 at coke oven gas temperatures below 100 °C.