中空纤维膜
接触器
过氧化氢
陶瓷
渗透
吸收(声学)
材料科学
膜
体积流量
接触角
分析化学(期刊)
传质
氢
化学工程
化学
陶瓷膜
纤维
复合材料
色谱法
有机化学
热力学
功率(物理)
工程类
物理
生物化学
作者
Fangyang Yuan,Jiali Yan,Wei Yu,Jiyun Du,Jianfeng Yu
标识
DOI:10.1016/j.jece.2020.104129
摘要
Nitric oxide reduction by hydrogen peroxide absorption through a ceramic hollow fiber membrane contactor was studied experimentally. A membrane contactor with a single ceramic hollow fiber was characterized by multiple techniques, including contact angle measurement, gas permeation, water permeation and spectroscopy. The superhydrophobic ceramic was first used to achieve nonwetting conditions, and overatmospheric operating conditions were applied to enhance mass transfer. The effects of the process parameters on NO reduction were tested and discussed. It was found that NO reduction increases linearly with diffusion length. The gas flow rate and absorbent flow rate are suggested to be low to achieve high-efficiency gas absorption. NO reduction increases linearly with the enhancement factor or the square root of hydrogen peroxide concentration. Elevated pressure increases NO absorption flux and helps NO reduction within the breakthrough pressure.
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