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| Influencing factors and evaluation methods of low-temperature filtration blocking performance of biodiesel |
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| DOI： |
| KeyWord:biodiesel low-temperature filtration blocking performance influencing factor cold soak filtration test |
| FundProject:中国石油化工股份有限公司合同项目(121031) |
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| Abstract: |
| Poor biodiesel low-temperature filtration blocking performance is one of the important reasons hindering the development of biodiesel. In order to strengthen the standardization of biodiesel industry and promote the healthy development of biodiesel industry, the influencing factors and evaluation methods of low-temperature filtration blocking performance of biodiesel were reviewed, and suggestions were made according to different influencing factors. Saturated fatty acid methyl esters, fatty acid glycerides, free glycerol, sterol glycosides in biodiesel can affect the low-temperature filtration blocking performance of biodiesel. The negative effect of saturated fatty acid methyl esters on the low-temperature filtration blocking performance of biodiesel can be reduced by modifying the molecular structure of biodiesel, adding flow improver and freezing separation of saturated fatty acid methyl esters. ASTM D7501 is an effective method to evaluate the low-temperature filtration blocking performance of biodiesel. The standard method of evaluating the low-temperature filtration blocking performance of biodiesel in China developed on the basis of ASTM D7501, is of practical significance to promote the quality improvement of biodiesel products in China. |
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