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| Change law of typical indexes of biodiesel made from waste cooked oil during storage |
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| DOI： |
| KeyWord:waste cooked oil biodiesel enzymatic preparation stability |
| FundProject:上海市科研计划项目“餐厨废弃油脂制生物柴油油品稳定性及船用柴油机材料适用性研究”（18DZ1202800） |
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| Abstract: |
| To improve the storage stability of biodiesel made from waste cooked oil, with waste cooked oil as raw material, biodiesel was produced by enzymatic process and 0.2% of antioxidant was added to it,then the change of acid value, moisture content, sulfur content and oxidation stability of the biodiesel during 90 d storage were determined. The results showed that the indicators of biodiesel prepared by enzymatic method met the technical requirements of BD100 biodiesel S10 in GB 25199-2017 “B5 Diesel fuels”, with a minimum sulfur content of 2.1 mg/kg.When 0.2% antioxidant was added, the oxidation stability of biodiesel increased from 3.6 h to 12.0 h. After 90 d of storage, the sulfur content, acid value, moisture content and oxidation stability were in line with national standard requirements. Enzymatic preparation process of biodiesel is easy to control the various indicators of the product, the process is more green and environmental protection, and through the addition of antioxidant the storage stability of biodiesel can be improved. |
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