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Effect of Non-functional Additives on Performance of Internal Combustion Engine Lubricating Oil

  • Jingqiu Mu
  • Jinlong Wu
  • Fenglan Han
  • Jingjing Li
  • Liqing Su
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)

Abstract

In order to improve the quality of lubricants and prolong the life of oil products, additives should be added to the base oil. The non-functional additives of lubricating oil are mainly included: viscosity index improver, pour point depressant, anti-foam agent. In a certain ratio, the viscosity index improver, pour point depressant, and anti-foam agent have a synergistic or inhibitory effect. This experiment aims to explore the synergistic and inhibitory effects of non-functional additives and the effect of different dosage of additives on the performance of internal combustion engine lubricants. Certain amount of additives are added to the base oil for testing. Viscosity index improver T613, pour point depressant T803B, anti-foam agent T901 were selected as non-functional additives in the experiment. An orthogonal experiment was used to design the scheme. The performance of compound non-functional additives on lubricating oil was determined by means of oil kinematic viscosity measurement, foam property measurement and petroleum pour point measurement. The results of orthogonal design show that: the addition of anti-foaming agent is in the range of 5–20 ppm/100 g, and the viscosity index improver is inhibited. When the pour point depressant is 0.2–0.3 wt%, it has synergistic effect with viscosity index improver, but more than 0.3 wt% after the viscosity index improver to produce inhibitory effect. The anti-foaming agent content has a synergistic effect on the pour point depressant in the range of 5–20 ppm/100 g; the viscosity index improver has a synergistic effect on the pour point depressant in the range of 5–6.5 wt%. The content of the pour point depressant in the range of 0.2–0.3 wt% synergies with the anti-foaming agent, the content of more than 0.3% after the inhibition effect; adding viscosity index improver in the range of 5–6.5 wt% with the anti-foam agent inhibition. The optimum process was as follows: viscosity index improver T613 was 6.0 wt%, pour point depressant T803B was 0.3 wt%, and anti-foam agent T901 was 5 ppm/100 g.

Keywords

Lubricants Nonfunctional additives 

References

  1. 1.
    G. Wu, Performance Study and Preparation of Anti Wear Additive for Lubrication Oil, Harbin Engineering University, 2004Google Scholar
  2. 2.
    W.Q. Yao, Y.L. Wu, J.Y. Liu, Base oil and additives for modern gasoline engine lube. J. Chang’an Univ. (Natural Science Edition) 3, 71–74 (2003)Google Scholar
  3. 3.
    H. Wang, Study on the LNG Engine Lubricant of Heavy-duty Truck, Chang’an University, 2015Google Scholar
  4. 4.
    S. Liang, J. Fan, J. Zhang, L. Ding, Research progress in lubricating oil detergent metalation process. Chem. Ind. Eng. Prog. 8, 1451–1456 (2010)Google Scholar
  5. 5.
    Z. Xu, Study on CNG Engine Lubricating Oil Composite Additive for City Bus, Chang’an University, 2015Google Scholar
  6. 6.
    X. Zhang, The current situation and development trend of lubricant additives at home and abroad. Lubricating Oil 2, 1–4 (2012)Google Scholar
  7. 7.
    Y.S. Ma, J.J. Liu, B.L. Zhu, L.Q. Zheng, R.L. Wang. Combatic effect of lubricating oil extreme pressure antiwear additives and its synergistic effect with solid lubricants and surface modified layers. Tribology 3, 270–278 (1994)Google Scholar
  8. 8.
    Y. Qiao, X. Fang, H. Dang, Co synergistic mechanism of two typical sulfur-containing phosphorus additive systems in lubricating oil. Tribology 1, 29–38 (1995)Google Scholar
  9. 9.
    W. Wang, W. Li, Y. Dong, X. Zhang, Effect of additives blending process on CNG engine oils performance. Lubr. Sealing 11, 134–137 (2015)Google Scholar
  10. 10.
    F.G. Jiang, The development status and trend of lubricating oil in automobile internal combustion engine. Chin. Pet. Chem. Ind. Stan. Qual. 8, 101 (2011)Google Scholar
  11. 11.
    H.X. Zhao, in Application and Development of Lubricating Oil in Internal Combustion Engine. China Automotive Engineering Society Automotive Fuel and Lubricating Oil Branch. China Automotive Engineering Society Fuel and Lubricant Branch of the 13th Annual Conference Proceedings. China Society of Automotive Engineers With Lubricants Branch, (2008) 5Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Jingqiu Mu
    • 1
  • Jinlong Wu
    • 1
  • Fenglan Han
    • 1
  • Jingjing Li
    • 1
  • Liqing Su
    • 1
  1. 1.North Minzu UniversityYinchuanChina

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