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| Preparation of Ultrafine Fiber Composite Filter Paper and Study on Its Oil-Gas Separation Performance |
| Received:November 24, 2025 Revised:December 09, 2025 |
| DOI：10.11980/j.issn.0254-508X.2026.05.009 |
| Key Words:wet-forming composite filter paper ultrafine fiber oil-gas separation |
| Author Name | Affiliation | Postcode | | LIU Bing* | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | WANG Di | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | LIANG Yun | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | TANG Min* | School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 |
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| Abstract:In this study， four types of ultrafine fiber composite filter papers were prepared via wet-forming technology using glass fibers， polyethylene terephthalate (PET) fibers， fibrillated tencel fibers， and fibrillated aramid fibers as main raw materials. Their oil-gas separation performances under room-temperature and high-temperature conditions were systematically evaluated. The results showed that as the operating condition changed from room temperature to high temperature， the most penetrating particle size (MPPS) of four types of ultrafine fiber composite filter papers increased from 0.20 μm to 0.30~0.40 μm， their steady-state pressure drop decreased by 600~1 100 Pa， and the filtration efficiency for droplets with particle size of 0.2~10 μm decreased by 0.2~7 percentage points. In addition， under high-temperature conditions， the introduction of fibrillated fibers could improve the steady-state pressure drop and quality factor of ultrafine fiber composite filter papers. Among them， the ultrafine fiber composite filter paper prepared by blending with fibrillated aramid fibers exhibited a superior steady-state pressure drop (4 450 Pa) compared with the commercial filter paper (4 700 Pa)， and its quality factor (0.480 kPa-1) was 1.2 times that of the commercial filter paper， demonstrating promising application potential in high-temperature environments. |
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