Lube-Tech PUBLISHED BY LUBE: THE EUROPEAN LUBRICANTS INDUSTRY MAGAZINE PE-C5 PE-C6 PE-C7 X-Craft® Figure 12: Dielectric dissipation factor of PE-C5, PE-C6 and PE-C7.
POEs derived from pentaerythritol and linear, saturated fatty acids are typically expected to exhibit excellent oxidation stability due to the complete saturation of the side carbon chains and the lack of beta hydrogens on the molecular structure.
Oxidation stability (ISO 4263-3 - dry TOST) Lower your CO2 Footprint
In addition to the unique characteristics of X-Craft® C6, using food waste-derived fatty acids for ester base oils has a significant environmental benefit.
Global warming impact including biogenic uptake
Figure 13: Oxidation stability of PE-C5, PE-C6, and PE-C7.
As per the results shown in Figure 13, unfortunately, all three esters showed relatively poor oxidation stability, reaching an increase of 2 mg KOH/g in TAN (total acid number) after 57 - 80 hours. This unexpected result indicates that due to the limitations of small-scale lab synthesis, the presence of residual moisture in the samples and possibly some residues of the catalyst employed for the synthesis might have affected the performance results. However, the correlation between the results in the chart still gives a good indication that with better purification of samples, the performance of PE-C6 should be expected to be between PE-C5 and PE-C7.
38 LUBE MAGAZINE NO.186 APRIL 2025
Table 4: Composition of X-Craft® applications.
No.157 page 6
High-purity fatty acids are employed (>98%) for the synthesis of POEs at an industrial scale. Although fermentation is a novel way of deriving fatty acids for the lubricants industry, this production method does not have any negative effect on the quality of the product, and the highest purities can certainly be achieved.
C6 that ChainCraft offers for industrial applications has a purity of over 98%. The remaining fraction is comprised of other fatty acids with chain lengths ranging from C4 to C8 due to the nature of the fermentation process.
6 with >98% C6 purity for industrial
Figure 14: Global warming impact of ChainCraft fatty acids excluding and including biogenic content.
Figure 14 shows the carbon footprint assessment of ChainCraft fatty acids produced from potato residues
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