SusChEM: Chemical Reaction Engineering for Sustainable Production of Nitrogen Fertilizer and Hydrogen Peroxide by Non Thermal Plasma

1702166皮：洛克，布鲁斯拟议工作的主要目的是用气-液非热等离子体反应器实验研究硝酸盐和过氧化氢的可持续化学生产。该项目还试图促进对用于化学合成的气液等离子反应堆设计原理的理解。这项提议的基本主题是，为农民提供一种在绿色化工过程中利用水、空气和太阳能等可持续资源在当地生产氮肥和过氧化氢农药的方法，是减少化肥生产对环境的影响、提高农民生产率和利润率的理想方法。该项目将通过减少用于化肥和农药生产的石油原料的使用来促进化学反应工程的可持续性。这项拟议的研究旨在对如何利用非热等离子体反应堆形成硝酸盐和其他物种进行详细分析。在等离子体反应器中，等离子体放电通道在流动的气体和流动的液体之间的界面上形成并沿界面传播。将制定的反应堆设计原则包括确定等离子体性质如何与反应堆特性和电气条件相互作用，以促进涉及氮氧化物的合成化学反应。该项目有三个具体目标，针对三个主要假设。第一个具体目的是分析化学反应机理，主要假设是硝酸盐形成的主要反应途径是通过羟基自由基反应。第二个具体目标是分析等离子体特性和电源特性，并确定这些特性如何相互作用和影响化学反应路径。主要的假设是，硝酸盐的形成效率可以由等离子体温度、电子密度和输入功率特性(脉冲功率、电压、频率)的变化来控制。第三个具体目标涉及分析和开发新的化学反应器设计特点，以提高性能。主要的假设是，改变气液等离子体反应器的内部几何形状(包括通道尺寸和喷嘴直径)，影响比表面积、气液停留时间和等离子体接触，可以通过影响包括羟基自由基在内的关键反应物种的形成来影响硝酸盐的形成。拟通过FAMU-FSU工程学院挑战者中心开展外联活动，其中将包括关于等离子体应用的介绍和学习模块，以及与绿色化学合成和农业有关的主题。

1702166 PI: Locke, Bruce The major aim of the proposed work is to experimentally investigate the sustainable chemical production of nitrate and hydrogen peroxide using a gas-liquid non-thermal plasma reactor. This project also seeks to advance the understanding of the design principles of gas-liquid plasma reactors for chemical synthesis. The underlying theme of this proposal is that providing farmers a way to produce nitrogen fertilizer and hydrogen peroxide pesticide locally from sustainable resources, e.g., water, air, and solar energy, in a green chemical process, is an ideal approach to both reducing the environmental impact of fertilizer production and improving the productivity and profit margin of farmers. This project will advance sustainability in chemical reaction engineering through reduction in utilization of petroleum feedstocks for fertilizer and pesticide production. The proposed research aims to develop a detailed analysis of how non-thermal plasma reactors can be utilized to form nitrate and other species. In the plasma reactor the plasma discharge channels form on, and propagate along, the interface between a flowing gas and a flowing liquid. The reactor design principles to be developed include determination of how plasma properties interact with reactor characteristics and electrical conditions to facilitate synthetic chemical reactions involving nitrogen oxides. The project has three specific aims directed to three major hypotheses. The first specific aim involves the analysis of the chemical reaction mechanisms, and the major hypothesis is that the primary reaction pathway for nitrate formation is through hydroxyl radical reactions. The second specific aim deals with the analysis of the plasma properties and power supply characteristics, and determination of how these properties interact and affect the chemical reaction pathways. The major hypothesis is that nitrate formation efficiency can be controlled by variation of the plasma temperature, electron density, and input power characteristics (pulse power, voltage, frequency). The third specific aim deals with the analysis and development of novel chemical reactor design features for improved performance. The major hypothesis is that modifications of the internal geometry of the gas-liquid plasma reactor (including channel size and nozzle diameter), which affect the surface area, gas and liquid residence times, and plasma contacting, can affect the formation of nitrate via effects on formation of key reactive species including hydroxyl radicals. Outreach activities through the Challenger Center of the FAMU-FSU College of Engineering are proposed and will include presentations and learning modules about plasma applications and topics related to green chemical synthesis and agriculture.