SO2 Gas Physicochemical Removal through Pulse Streamer Discharge Technique Assisted by Vapor Additive

摘要: SO2 removal has drawn extensive attentions for air pollution treatment. In this paper, the pulse streamer discharge technique is investigated. Emission spectra diagnosis experimentally indicates that molecule been physically dissociated into SO and O radicals by electron collision can be remediated through further chemical reactions during after discharge. order to quantitatively analyze physical chemistry kinetics, a zero-dimensional physicochemical reaction model established. Without H2O vapor additive, efficiency leanly low only 0.296% achieved under duration of 0.5 μs. Through increasing electrical concentration six times, slightly heightened 1.796% at 3 μs. Contrarily, additive effectively improve remarkably 13.0195% 0.5 μs with H2O/SO2 initial ratio 0.1 : 1. OH decomposed from are essential factor achieve such improvement, which have adjusted process favorite directions. The major productions transformed HSO3 HOSO2 H2SO4 when increased above 1.27 : 1.