Pulsed corona discharge for oxidation of gaseous elemental mercury - article no. 251503
Pulsed corona discharge for oxidation of gaseous elemental mercury - article no. 251503
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DOI：
10.1063/1.2952496
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发表时间：
2008-06
影响因子：
4
通讯作者：
K. B. Ko;Youngchul Byun;M. Cho;W. Namkung;I. Hamilton;D. Shin;D. Koh;Kyoung Tae Kim
中科院分区：
文献类型：
--
作者：
K. B. Ko;Youngchul Byun;M. Cho;W. Namkung;I. Hamilton;D. Shin;D. Koh;Kyoung Tae Kim
Positive pulsed corona discharge has been applied for the oxidation of gaseous elemental mercury (Hg{sup O} from a simulated flue gas. The oxidation of Hg{sup 0} to Hg{sup O} and HgCl{sub 2} can significantly enhance the mercury removal from flue gas. At a gas condition of O{sub 2} (10%), H{sub 2}O (3%), and N{sub 2} (balance), Hg{sup 0} oxidation efficiency of 84% was achieved at an input energy density of 45 J/l. The presence of NO, however, hinders Hg{sup 0} oxidation due to the preferential reaction of NO with O and O{sub 3}. On the contrary, SO{sub 2} shows little effect on Hg{sup 0} oxidation due to its preferential reaction with OH. It has been also observed that the HCl in gas stream can be dissociated to Cl and Cl{sub 2} and can induce additional Hg{sup 0} oxidation to HgCl{sub 2}.
Positive pulsed corona discharge has been applied for the oxidation of gaseous elemental mercury (Hg{sup O} from a simulated flue gas. The oxidation of Hg{sup 0} to Hg{sup O} and HgCl{sub 2} can significantly enhance the mercury removal from flue gas. At a gas condition of O{sub 2} (10%), H{sub 2}O (3%), and N{sub 2} (balance), Hg{sup 0} oxidation efficiency of 84% was achieved at an input energy density of 45 J/l. The presence of NO, however, hinders Hg{sup 0} oxidation due to the preferential reaction of NO with O and O{sub 3}. On the contrary, SO{sub 2} shows little effect on Hg{sup 0} oxidation due to its preferential reaction with OH. It has been also observed that the HCl in gas stream can be dissociated to Cl and Cl{sub 2} and can induce additional Hg{sup 0} oxidation to HgCl{sub 2}.