Filtration Performance of Coalescence Filter with Nanofiber Membrane

IF 3.4 4区工程技术 Q2 ENGINEERING, CHEMICAL

Processes Pub Date : 2025-11-11 DOI:10.3390/pr13113645

Yuee Chen, Rongjun Song, Jiajiang Zhang, Kang Ji, Kailong Cui, Feng Chen

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引用次数: 0

Abstract

Glass fiber filter media are widely used to remove submicron liquid droplets from air and gas streams. However, there is still a challenge to obtain filter media with high efficiency and low resistance. In this study, the electrospinning method was used to deposit a nanofiber membrane on the micron fiber filter media. The filtration performance and liquid distribution in the filters with different electrospinning area ratio were analyzed. The filtration performances of dual-layer filters with different combinations were investigated. The results show that with the increase in electrospinning area ratio, the filtration efficiency of oleophilic filters can be improved, while it seems to have no effect on the filtration efficiency of oleophobic filters. At the initial stage of filtration, there is liquid film forming on the electrospinning area for both the oleophilic and oleophobic filters, resulting in an increase airflow resistance on the non-electrospinning area. As the nanofiber membrane is coated on the up region of the first layer filter media, with the increase in the electrospinning area ratio, the steady pressure drop increases for the dual-layer combinations based on oleophilic filter media, while the filtration efficiency increases gradually for the dual-layer combinations based on both oleophilic and oleophobic filter media. The best filtration performance was found for Filter B-U75-D25.

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纳米纤维膜聚结过滤器的过滤性能

玻璃纤维过滤介质广泛用于去除空气和气流中的亚微米液滴。然而，如何获得高效、低阻力的过滤介质仍然是一个挑战。在本研究中，采用静电纺丝法在微米纤维过滤介质上沉积纳米纤维膜。分析了不同静电纺丝面积比过滤器的过滤性能和液体分布情况。对不同组合的双层过滤器的过滤性能进行了研究。结果表明，随着静电纺丝面积比的增大，亲油过滤器的过滤效率有所提高，而对疏油过滤器的过滤效率似乎没有影响。在过滤初期，亲油性和疏油性过滤器在静电纺丝区都形成液膜，导致非静电纺丝区气流阻力增大。当纳米纤维膜被涂覆在第一层过滤介质的上部区域时，随着静电纺丝面积比的增加，亲油性过滤介质双层组合的稳定压降增加，而亲油性和疏油性过滤介质双层组合的过滤效率逐渐增加。B-U75-D25过滤器的过滤性能最好。

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来源期刊

Processes Chemical Engineering-Bioengineering

CiteScore

5.10

自引率

11.40%

发文量

2239

审稿时长

14.11 days

期刊介绍： Processes (ISSN 2227-9717) provides an advanced forum for process related research in chemistry, biology and allied engineering fields. The journal publishes regular research papers, communications, letters, short notes and reviews. Our aim is to encourage researchers to publish their experimental, theoretical and computational results in as much detail as necessary. There is no restriction on paper length or number of figures and tables.