Journal
PLASMA PROCESSES AND POLYMERS
Volume 10, Issue 4, Pages 353-363Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ppap.201200155
Keywords
hydroxyl radicals; organic pollutants; steam plasma jet; syngas; thermal decomposition
Funding
- National Natural Science Foundation of China [21171169, 20971126, 21077109]
- 973 project from MOST [2011CB933700]
- Knowledge Innovation Program of the Chinese Academy of Sciences
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Steam plasma jet (SPJ) was generated by phenol aqueous solution introduced into water plasma torch as plasma forming gas, which injected into phenol aqueous solution to conduct oxidation degradation of organic pollutants in aqueous solutions. The experimental results indicated that the phenol was not only decomposed in SPJ, but also degraded in phenol aqueous solution due to high concentration hydroxyl radicals. Moreover, the energy efficiencies significantly increased from (1.61.8)x1010 to (4.88.0)x108mol center dot J1 with the initial concentration of phenol increased from 0.5 to 50.0g center dot L1. The main intermediates of phenol decomposition were pyrocatechol, hydroquinone, maleic acid, butanedioic acid, and muconic acid in liquid. The major gaseous effluence products were H2, CO, and CO2.
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