Biodiesel additives successfully tested

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Sufficient oxidation and cold stability is essential for the safe use of biodiesel (FAME).
The additives used must not have any negative interactions with the FAME itself or the base diesel fuel and its additives.
Only two antioxidants and one flow improver were able to pass the challenging no-harm tests in 2023 and be included on the no-harm lists.
Fatty acid methyl ester (FAME, biodiesel) is often stabilised with additives to ensure safe storage and use at low temperatures in winter.
In cooperation with the mineral oil industry, AGQM has developed the no-harm tests to test the additivation of biodiesel with antioxidants and flow improvers for possible negative interactions with FAME, the fossil diesel fuel and various additives.
In addition to the standard requirements in the test programmes for pure biodiesel, a series of other specific tests such as interaction, filtration and engine oil compatibility tests as well as the XUD-9 engine test are carried out in a diesel fuel with 10% biodiesel content (B10).
Depending on the additive type, special tests such as the relative efficiency to BHT for antioxidants and the foam, emulsion...

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