化工进展2018，Vol.37Issue(5)：1978-1984,7.DOI:10.16085/j.issn.1000-6613.2017-1365
钠添加剂对介质阻挡-电晕放电耦合法尿素脱除NO的影响
Effects of sodium additives on NO removal of urea by dielectric barrier -corona discharge coupling method
摘要
Abstract
The effects of different sodium additives(Na2CO3、NaOH、CH3COONa)on the removal of the NO by urea and the mechanism of the NO removal were investigated on a self-designed dielectric barrier-corona discharge coupling device. The results indicated that,within the scope of the study,the NO removal rate increased with the increase of the urea content. The NO removal rate was 64.23% with 0.3% urea added at 0.83A current. However,the CO was produced and increased with the increasing of the dosage of urea;the addition of a small amount of sodium additives could significantly improve the NO removal rate that increased with the increase of the content of sodium additives. The amount of CO production was effectively inhibited. Under the same dosages,various sodium additives could promote the NO removal of urea. The NO removal was affected by the sodium additive in accordance with the order of NaOH>Na2CO3>CH3COONa. NO removal rate was 90.71% and 95.71% at 0.83A and 5A current,respectively;when sodium hydroxide and urea mass ratio was 10:10.while there was almost no CO.关键词
介质阻挡-电晕放电耦合法/一氧化氮/脱除率/尿素/添加剂Key words
dielectric barrier and corona discharge/nitric oxide/removal efficiency/urea/additive分类
资源环境引用本文复制引用
李艳荣,张香,杨岚,贺建勋,闵小建,樊英杰,马晓迅..钠添加剂对介质阻挡-电晕放电耦合法尿素脱除NO的影响[J].化工进展,2018,37(5):1978-1984,7.基金项目
国家自然科学基金(21536009)及陕西省科技计划(2017ZDCXL-GY-10-03)项目. （21536009）
