| 周进1，田康2，常俊明3.餐饮废油预处理脱磷技术研究进展[J].中国油脂,2026,51(4):.[ZHOU Jin1,TIAN Kang2,CHANG Junming3.Research progress in dephosphorization technologies for pretreatment of waste cooking oil[J].China Oils and Fats,2026,51(4):.] |
| Research progress in dephosphorization technologies for pretreatment of waste cooking oil |
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投稿时间：2025-03-11 修订日期：2025-12-18 录用日期：2025-03-21
Published：2026-04-20
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| DOI：10.19902/j.cnki.zgyz.1003-7969.250125 |
| KeyWord:waste cooking oil dephosphorization technology process optimization phosphorus forms |
| FundProject: |
| Author Name | Affiliation | | ZHOU Jin1,TIAN Kang2,CHANG Junming3 | 1.Yingkou Ningtai Environmental Protection Technology Co. , Ltd. , Yingkou 115000, Liaoning, China
2.Zhongshenghuiyi (Shanghai) Technology Co. , Ltd. , Shanghai 201500, China
3.Green Energy
Institute, Beijing Sanju New Energy Co. , Ltd. , Beijing 100080, China |
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| Abstract: |
| With the advancement of the global energy transition, waste cooking oil, as an important renewable resource, has demonstrated significant potential in the production of sustainable aviation fuel (SAF). However, its high phosphorus content (typically>30 mg/kg) tends to cause catalyst poisoning and deactivation during the hydrogenation process, severely hindering its industrial-scale application. Therefore, efficient dephosphorization has become a core technical challenge of pretreatment of waste cooking oil. The complex sources and forms of phosphorus in waste cooking oil were analyzed,and traditional dephosphorization processes based on vegetable oil refining, such as hydration and acid degumming were elaborated, the limitations of these conventional methods such as poor adaptability and suboptimal economic performance were also elaborated when dealing with waste cooking oil, which featured variable composition, high acid value, and complex impurities. To address these challenges, novel dephosphorization technologies were reviewed, including EDTA complexation method, ultrasound-assisted method, and advanced hydrogenation process. The removal efficiency of non-hydratable phospholipids was enhanced by chelating metal ions or utilizing cavitation effect，and the innovations in hydrogenation technology, such as the application of ebullated-bed reactors, reduced the required depth of feedstock pretreatment and enhanced process robustness. In addition, mixed-acid treatment, multi-technology integration, and by-product resource recovery were proposed to improve economic viability. Future research should focus on deepening fundamental studies, technological integration and innovation, as well as the development of intelligent and flexible systems, and combined with a comprehensive techno-economic assessment of the entire value chain, these efforts will ultimately promote the efficient, economical, and large-scale development of the waste cooking oil to SAF industry. |
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