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Temperature Effect on Removal of Sulfur Dioxide and Benzene in Humid Air by DC Corona Discharge
Author(s) -
Sano N.,
Fukuoka M.,
Kanki T.,
Tanthapanichakoon W.,
Charinpanitkul T.,
Tamon H.
Publication year - 2004
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200401851
Subject(s) - chemistry , atmospheric temperature range , corona discharge , benzene , sulfur dioxide , analytical chemistry (journal) , sulfur , environmental chemistry , inorganic chemistry , thermodynamics , organic chemistry , electrode , physics
A DC corona discharge reactor was applied to remove sulfur dioxide (SO 2 ) and benzene (C 6 H 6 ) from N 2 ‐O 2 ‐H 2 O mixed gas in the temperature range from room temperature to 400 °C. When SO 2 was removed, the temperature elevation caused the decrease of the removal efficiency of SO 2 . On the other hand, the removal efficiency of C 6 H 6 was not significantly influenced by the temperature elevation. In the simultaneous removal of SO 2 and C 6 H 6 in the relatively low temperature range below 200 °C, the removal efficiency of SO 2 is significantly inhibited by coexisting C 6 H 6 . When the simultaneous removal was conducted in the high temperature range, the removal efficiency of SO 2 was not sensitive against the coexisting C 6 H 6 . On the other hand, the removal efficiency of C 6 H 6 was almost independent of coexisting SO 2 at all temperatures. A hypothesis of reaction mechanism was discussed based on radical reactions with SO 2 and C 6 H 6 to explain the trend observed in the experiment.