Low temperature interactions between hydrocarbons and nitric oxide: An experimental study
Low temperature interactions between hydrocarbons and nitric oxide: An experimental study
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DOI：
10.1016/s0010-2180(96)00146-0
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发表时间：
1997-04-01
影响因子：
4.4
通讯作者：
DamJohansen, K
中科院分区：
文献类型：
--
作者：
Alzueta, MU;Glarborg, P;DamJohansen, K
气体再燃是一种适用于不同燃烧系统的NOx控制技术。在该装置中，气体被注入主燃烧器下游的炉内，形成亚化学计量区，然后注入燃尽空气。在实验室规模的流动反应器中研究了影响还原区化学反应的变量（温度在900和1450 K之间，再燃燃料类型，化学计量比，NO浓度和停留时间），这主要是由烃自由基和NO之间的相互作用控制。在适当的操作条件下，可以获得显著的NO还原效率。NO破坏与烃氧化状态密切相关，这取决于所考虑的烃燃料而不同，并且NO在很大程度上转化为HCN。烃和氧的浓度以及温度是影响所获得的结果的重要参数，而入口NO浓度和停留时间仅具有较小的影响。气体再燃的实际影响，目前的结果进行了讨论。(C)1997年，由燃烧研究所。
Gas reburning is a NOx control technique that can be applied in different combustion systems. In it, gas is injected into the furnace downstream of the primary burners to form a substoichiometric zone followed by the injection of burnout air. The variables that influence the chemistry in the reducing zone (temperature between 900 and 1450 K, reburn fuel type, stoichiometry, NO concentration and residence time), which is mainly controlled by the interactions between hydrocarbon radicals and NO, have been studied in a laboratory scale flow reactor. A significant NO reduction efficiency can be obtained with proper operating conditions. The NO destruction is closely coupled to the hydrocarbon oxidation regime, which differs depending on the hydrocarbon fuel considered, and NO is to a significant extent converted to HCN. The concentration of hydrocarbons and oxygen, and the temperature are important parameters affecting the results obtained, whereas the inlet NO concentration and the residence time only have a minor effect. The practical implications of the present results for gas reburning are discussed. (C) 1997 by The Combustion Institute.