项目名称： 利用真空紫外光电离-分子束质谱研究煤粉的燃烧

项目编号： No.51506200

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 能源与动力工程

项目作者： 翁俊桀

作者单位： 中国科学院工程热物理研究所

项目金额： 20万元

中文摘要： 获取煤粉燃烧过程中的活性中间体信息是深入研究煤粉燃烧机理的基础，是减少和控制燃煤污染物排放的关键问题，事关我国能源、环境等领域的需求。. 本项申请的主要研究内容将围绕煤粉燃烧过程中活性中间体及稳定产物的实时在线探测展开，主要技术路线是通过分子束取样技术将平面火焰携带流反应器与真空紫外光电离质谱相结合，用于煤粉的燃烧机理研究。在定性方面，探测燃烧过程中的活性中间体，鉴别同分异构体；在定量方面，探测各种反应物、中间体及产物的空间浓度信息。. 本项申请的创新点在于能够实时在线的全面探测活性物种及稳定产物，并获得各物种的空间浓度信息。本项研究工作将有助于我们进一步发展更加可靠和实用的煤粉燃烧机理，为工程实际应用中降低污染物排放及优化反应器提供技术支持，为我国煤的高效清洁燃烧技术的发展提供理论支持，为我国煤燃烧基础研究领域在国际学术界进一步增加影响力贡献力量。

中文关键词： 煤粉燃烧；真空紫外光电离；分子束质谱；燃烧机理；平面火焰携带流反应器

英文摘要： The information of reactive intermediates during pulverized coal combustion is the basis of further research on the mechanism of pulverized coal combustion, and this is a key point to reduce and control the emission of pollutants, which concerns the nation’s demands for the fields of energy, environment, and etc..The main research content of this application will focus on the real-time and on-line detection of reactive intermediates and stable products during pulverized coal combustion. The main technical route to study the mechanism of pulverized coal combustion is the combination of a flat-flame assisted entrained flow reactor with vacuum ultraviolet (VUV) photoionization mass spectrometry (PIMS) by molecular beam sampling technique. With this facility, the reactive species can be detected qualitatively; isomers can be easily distinguished, and the distribution of spatial concentrations of all reactants, intermediates, and products can be measured quantitatively..The main innovation of this application is the real-time and on-line detection of reactive intermediates and stable products. Moreover, the information of spatial concentrations of all species can be obtained. This study will help to develop the more reliable and practical mechanism of pulverized coal combustion, and it will offer technical support for reducing pollutants and optimizing reactors. Besides, this study will provide theoretical support for the development of efficient clean-combustion techniques of pulverized coals in China. Furthermore, this work also aims to contribute to growing influences of the area of Chinese basic coal combustion research on international academic community.

英文关键词： Coal combustion;Vacuum ultraviolet photoionization;Molecular beam mass spectrometry;Combustion mechanism ;Flat-flame assisted entrained flow reactor