title: Effect of hydrogen generated by dielectric barrier discharge of NH3 on selective non-catalytic reduction process.
abstract: Plasma-assisted selective non-catalytic reduction (SNCR) has been investigated to clarify which species generated by the plasma play a crucial role in NO reduction. We find that the presence of O(2) is indispensable and only H(2) is observed to be a stable product by dielectric barrier discharge (DBD) of NH(3). As the extent of NH(3) decomposition by DBD increases, the commencement temperature of SNCR processes is lowered and the working temperature window is widened. This propensity may be attributed to the chemical reaction of H(2) with O(2) to generate OH and H radicals which make it possible to yield NH(2) radicals even at low temperature.
authors.affiliation: School of Environmental Science and Engineering, Pohang University of Science and Technology, Hyoja Dong, Pohang, Kyoungbuk 790-784, Republic of Korea.
authors.forename: Youngchul
authors.initials: Y
authors.lastname: Byun
authors.forename: Kyung Bo
authors.initials: KB
authors.lastname: Ko
authors.forename: Moohyun
authors.initials: M
authors.lastname: Cho
authors.forename: Won
authors.initials: W
authors.lastname: Namkung
authors.forename: Dong Nam
authors.initials: DN
authors.lastname: Shin
authors.forename: Dong Jun
authors.initials: DJ
authors.lastname: Koh
mesh_terms: D000393:Air Pollutants / Q000737:chemistry* / Q000302:isolation & purification; D000641:Ammonia / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry; D009569:Nitric Oxide / Q000737:chemistry* / Q000302:isolation & purification; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D013696:Temperature
chemical_list: D000393:Air Pollutants; D009569:Nitric Oxide; D000641:Ammonia; D006859:Hydrogen; D010100:Oxygen