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Higher alcohol acetoacetate aluminum chelates as pour point depressant and impedance reducing agent of biodiesel-diesel blends

Author

Listed:
  • Zhang, Xiaokang
  • Li, Nana
  • Liu, Yan
  • Wei, Zhong
  • Lin, Hualin
  • Han, Sheng

Abstract

The use of additives to improve the shortcomings of biofuels in application is one of the most economical and effective methods. In this study, a new type of tridentate higher alcohol acetoacetate aluminum chelate additive was synthesized originally and then synchronously used as pour point depressant and resistance reducing agent. The low temperature fluidity of biodiesel-diesel blends, including cloud point, cold filter plugging point and pour point could be reduced by the maximum of 6, 7 and 12 °C for B20 (20 vol% biodiesel + 80 vol% diesel), and 5, 5 and 9 °C for biodiesel after the treatment of higher alcohol acetoacetate aluminum chelate additive, named as C16-acac-Al. Furthermore, the impedance modulus determined by electrochemical impedance spectroscopy of the blends were greatly reduced after the treatment of C16-acac-Al, especially noiseless-free in the low frequency region, and the effects of temperature change on electrochemical impedance spectroscopy of treated blends was explored. At length, the mechanism on how the morphology of wax crystals affect electrochemical impedance spectroscopy of treated blends as well as the effect mechanism of the synthetic additives improving the low temperature fluidity of blends were put forward.

Suggested Citation

  • Zhang, Xiaokang & Li, Nana & Liu, Yan & Wei, Zhong & Lin, Hualin & Han, Sheng, 2024. "Higher alcohol acetoacetate aluminum chelates as pour point depressant and impedance reducing agent of biodiesel-diesel blends," Renewable Energy, Elsevier, vol. 234(C).
    • Handle: RePEc:eee:renene:v:234:y:2024:i:c:s0960148124012540
    DOI: 10.1016/j.renene.2024.121186
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