How to Ignite an Atmospheric Pressure Microwave Plasma Torch without Any Additional Igniters
How to Ignite an Atmospheric Pressure Microwave Plasma Torch without Any Additional Igniters
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DOI：
10.3791/52816
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发表时间：
2015-04-01
影响因子：
1.2
通讯作者：
Hirth, Thomas
中科院分区：
文献类型：
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作者：
Leins, Martina;Gaiser, Sandra;Hirth, Thomas
这部电影展示了如何大气压等离子体火炬可以点燃微波功率没有额外的点火器。在点燃等离子体之后，等离子体的稳定和连续操作是可能的，并且等离子体炬可用于许多不同的应用。一方面，热等离子体（3,600 K气体温度）可用于化学过程，另一方面，冷余辉（温度低至几乎RT）可用于表面过程。例如，化学合成是有趣的体积过程。在这里，微波等离子体炬可用于分解有害且导致全球变暖的废气，但这些废气在半导体分支等不断发展的工业部门中需要作为蚀刻气体。另一个应用是二氧化碳的分解。来自可再生能源的剩余电能可用于将CO2分解为CO和O-2。CO可以进一步加工成气态或液态高级烃，从而为化学工业提供能量、合成燃料或平台化学品的化学储存。等离子体炬的余辉的应用是表面处理，以增加漆、胶或油漆的附着力，以及不同种类表面的消毒或去污。这部电影将解释如何点燃等离子体完全由微波功率没有任何额外的点火器，例如，电火花微波等离子体炬基于两个谐振器的组合-同轴谐振器提供等离子体的点火，圆柱谐振器保证点火后等离子体的连续和稳定操作。等离子体可以在长的微波透明管中操作，用于体积处理或通过孔成形用于表面处理目的。
This movie shows how an atmospheric pressure plasma torch can be ignited by microwave power with no additional igniters. After ignition of the plasma, a stable and continuous operation of the plasma is possible and the plasma torch can be used for many different applications. On one hand, the hot (3,600 K gas temperature) plasma can be used for chemical processes and on the other hand the cold afterglow (temperatures down to almost RT) can be applied for surface processes. For example chemical syntheses are interesting volume processes. Here the microwave plasma torch can be used for the decomposition of waste gases which are harmful and contribute to the global warming but are needed as etching gases in growing industry sectors like the semiconductor branch. Another application is the dissociation of CO2. Surplus electrical energy from renewable energy sources can be used to dissociate CO2 to CO and O-2. The CO can be further processed to gaseous or liquid higher hydrocarbons thereby providing chemical storage of the energy, synthetic fuels or platform chemicals for the chemical industry. Applications of the afterglow of the plasma torch are the treatment of surfaces to increase the adhesion of lacquer, glue or paint, and the sterilization or decontamination of different kind of surfaces. The movie will explain how to ignite the plasma solely by microwave power without any additional igniters, e.g., electric sparks. The microwave plasma torch is based on a combination of two resonators - a coaxial one which provides the ignition of the plasma and a cylindrical one which guarantees a continuous and stable operation of the plasma after ignition. The plasma can be operated in a long microwave transparent tube for volume processes or shaped by orifices for surface treatment purposes.