• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Evaluation of nitrates as igniters for microwave-induced combustion: understanding the mechanism of ignition
【24h】

Evaluation of nitrates as igniters for microwave-induced combustion: understanding the mechanism of ignition

机译：硝酸盐作为微波诱导燃烧的点火器的评估：了解点火机理

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Recent studies have reported the use of microwave-induced combustion (MIC) for digestion of several kinds of matrices. In spite of several applications of MIC, relatively few information is available regarding the mechanism of ignition. In this work, a systematic study related to the role of NH4NO3 solution and other nitrates for the ignition step in the MIC system was performed. In this sense, aqueous solutions of Ca(NO3)(2), KNO3, Mg(NO3)(2), NaNO3 and NH4NO3 were evaluated. It was observed that the ignition is dependent on nitrate concentration and microwave power and seems to be related to the oxidation of organic matter by NO3-, which releases enough energy for starting a chain reaction leading to combustion. Additionally, a special action promoted by microwaves without using nitrate solutions was not observed. According to the results, all the evaluated nitrate solutions can be used as igniters with microwave power of 750 W or higher. It was also possible to use nitrate solutions as diluted as 1 mol L-1 and relatively short time was required for ignition of filter paper (below 10 s). Furthermore, the use of higher microwave power allowed a more reproducible ignition.
机译：最近的研究报道了使用微波诱导燃烧（MIC）消化几种基质。尽管MIC有多种应用，但是关于点火机理的信息却相对较少。在这项工作中，进行了有关NH4NO3溶液和其他硝酸盐在MIC系统点火步骤中的作用的系统研究。从这个意义上讲，对Ca（NO3）（2），KNO3，Mg（NO3）（2），NaNO3和NH4NO3的水溶液进行了评估。据观察，点火取决于硝酸盐浓度和微波功率，并且似乎与有机物被NO3-氧化有关，后者释放出足够的能量以启动链式反应，从而导致燃烧。另外，未观察到没有使用硝酸盐溶液的微波促进的特殊作用。根据结果​​，所有评估的硝酸盐溶液都可以用作微波功率为750 W或更高的点火器。也可以使用稀释为1 mol L-1的硝酸盐溶液，并且点燃滤纸所需的时间相对较短（10 s以下）。此外，使用更高的微波功率可以使点火更加可再现。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号