DBD等离子体催化合成氨与系统谐振的相关性

发布时间：2018-04-25 13:35

本文选题：介质阻挡放电 + 等离子体催化　；参考：《浙江工业大学学报》2016年06期

【摘要】：为了研究介质阻挡放电(DBD)等离子体催化合成氨与谐振的相关性,在DBD等离子体反应器内,分别考察了操作参数(输入电压、气体总流量及V(N2)∶V(H2))和结构参数(有无催化剂填充、放电区宽度及催化剂粒径)对氨产率(单位时间氨产量)和DBD系统谐振特性的影响,进一步阐述DBD等离子体催化合成氨与谐振的相关性.结果表明:DBD谐振频率处氨产率最高;输入电压和放电区宽度增加,DBD谐振频率减小,而DBD谐振频率的减小有利于氨产率的提高;气体总流量、V(N2)∶V(H2)、有无催化剂填充和催化剂粒径对DBD谐振特性影响不大,但提高气体总流量、增加V(N2)∶V(H2)、填充催化剂和减小催化剂粒径有利于氨产率的提高,研究结果为DBD等离子体催化合成氨工艺优化提供依据.
[Abstract]:In order to study the correlation between ammonia and resonance in the dielectric barrier discharge (DBD) plasma catalysis, the operating parameters (input voltage, total flow of gas and V (N2): V (H2)) and structural parameters (no catalyst filling, width of discharge area and particle size of catalyst) were investigated in a DBD plasma reactor for ammonia yield per unit time and D. The influence of the resonance characteristic of BD system, further expounds the correlation between ammonia and resonance in DBD plasma catalysis. The results show that the ammonia yield is highest at the resonance frequency of DBD, the increase of the input voltage and the width of the discharge area, the decrease of the resonant frequency of the DBD, and the decrease of the DBD resonance frequency are beneficial to the increase of the ammonia yield; the total flow of gas, V (N2): V (H2), is not accelerated. The effect of filler and catalyst particle size on the resonance characteristics of DBD is not significant, but the total flow of gas is increased and V (N2): V (H2) is increased. Catalyst filling and reducing the particle size of the catalyst are beneficial to the increase of ammonia yield. The results of the study provide the basis for the optimization of the process of ammonia synthesis by the DBD plasma catalysis.

【作者单位】：浙江工业大学化学工程学院;
【分类号】：TQ113.26

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