对DBD等离子体方法 (直接和间接) 的参数调查和RSM优化,用于空气中的H2S转化
Seyed Ali Razavi Rad1, Mohammadreza Khani1, Hadi Hatami1
1Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran.
Heliyon
|April 25, 2024
概括
非热等离子体有效地去除有害的硫化 (H2S) 污染. 与间接方法相比,直接等离子体转换显示出更高的效率和能量产量,在合适的条件下使其成为最佳.
科学领域:
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
- 等离子体物理学的物理学
背景情况:
- 硫化 (H2S) 是一个重要的环境污染物和健康危害.
- 控制H2S的排放是一个关键的环境优先事项.
- 非热等离子技术为减少H2S提供了一个有前途的解决方案.
研究的目的:
- 为了比较,优化和建模直接和间接的H2S等离子体转化方法.
- 调查关键操作参数对H2S转换的影响.
- 为了确定使用非热等离子体去除H2S的最佳条件.
主要方法:
- 使用非热等离子反应器进行H2S转换.
- 采用中央复合设计 (CCD) 方法进行流程优化.
- 分析了放电功率,湿度,流量和初始H2S度的影响.
- 执行ANOVA以验证开发的模型.
主要成果:
- 开发了对H2S转换效率和能量产量的显著和高效的模型.
- 直接的H2S等离子体转换实现了56%的效率和3.43g/kWh的能量产量.
- 间接的H2S等离子转换实现了68%的效率和1.59 g/kWh的能量产量.
结论:
- 直接的H2S等离子体转化方法比间接的方法更优.
- 直接转换的最佳性能归因于活性物种和高能电子.
- 在适当的条件下,直接的非热等离子体转换是减少H2S的首选选择.
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