Device for removing volatile organic matter and generating hydrogen with non-equilibrium plasma

Abstract

The invention relates to a device for eliminating volatile organic compounds and producing hydrogen simultaneously by utilizing non-equilibrium plasma; the device comprises a high-voltage power supply, a cylinder central electrode, an external electrode of a Laval nozzle and a tangential gas tube, etc.; breakdown arc light column is formed by utilizing potential difference among the electrodes; the arc light column rotates with high speed between the cylinder central electrode and the external electrode under the driving of the swirling eddy led in by the tangential gas tube; the arc light column is rapidly pushed to the downstream when rotating and extinguished so as to generate rotary discharging non-equilibrium plasma flow with low pressure, low-temperature expansion state and large area of glow and corona regions; the non-equilibrium plasma flow comprises numerous high energy electrons and active particles such as O, O2<->, O3, H, OH and HO2, etc.; through bombardment of high energy particles and oxidization of active particles, the C-H chain is cut so as to eliminate the organic compounds and produce the hydrogen simultaneously and avoid generation of nitrogen oxide.

Description

technical field [0001] The invention relates to a device for simultaneously producing hydrogen by using non-equilibrium plasma to eliminate volatile organic compounds, and belongs to the fields of environmental technology and waste gas resource utilization. Background technique [0002] The mass production of chemical raw materials, the widespread use of paints, coatings, lubricants and other chemicals in surface coating operations, as well as the incineration of industrial waste and the emission of motor vehicle exhaust, have resulted in a large amount of volatile organic compounds (VOCs) ) are emitted into the atmosphere, causing air pollution. Certain volatile organic compounds (such as chlorofluorocarbons) are sufficient in trace amounts to destroy the ozone layer, causing increased ultraviolet radiation and warming of the planet. What's more serious is that VOCs molecules can be irradiated by radiation with a wavelength of 280-730nm to form free radicals, and finally g...

AI Technical Summary

Problems solved by technology

In China, the research on sliding arc discharge is in its infancy, and there are certain studies on the physical characteristics of sliding arc discharge, which mainly focus on the physical characteristics of sliding arc discharge driven by DC pure airflow (Lin Lie, Wu Chengkang. Nuclear fusion and plasma physics , 2000, 20(2): 121-124.); however, there is little research on the control of pollutants in China, mainly Du Changming and others carried out the research on single-phase AC sliding arc discharge, and applied it to remove toluene, polycyclic Various organic pollutants such as aromatic hydrocarbons and carbon black particles (Du Changming, et al. Proceedings of the Chinese Society for Electrical Engineering. 2006, 26(1): 77-81.)

Based on the research of domestic and foreign literature, it is found that the sliding arc discharge plasma treatment of volatile organic compounds has unique advantages, not only large processing capacity, but also simple operation and high removal rate; at the same time, it is also found that the current traditional sliding arc discharge device has the following scientific problems Urgent solution: ① Higher concentration of nitrogen oxides NO x ② High energy consumption; ③ The performance of the input power supply and the structure of the electrode need to be further explored; ④ Research focuses on the elimination of volatile organic compounds, without considering resource utilization

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