Version 1
: Received: 25 March 2024 / Approved: 25 March 2024 / Online: 26 March 2024 (02:16:15 CET)
How to cite:
Liu, J.; Zhang, Z.; Zhou, X.; Hu, W.; Pan, R.; Li, J. Structure-Performance Relationship of Coal-Based Lubricating Base Oils and Sensitivities to Typical Additives. Preprints2024, 2024031491. https://doi.org/10.20944/preprints202403.1491.v1
Liu, J.; Zhang, Z.; Zhou, X.; Hu, W.; Pan, R.; Li, J. Structure-Performance Relationship of Coal-Based Lubricating Base Oils and Sensitivities to Typical Additives. Preprints 2024, 2024031491. https://doi.org/10.20944/preprints202403.1491.v1
Liu, J.; Zhang, Z.; Zhou, X.; Hu, W.; Pan, R.; Li, J. Structure-Performance Relationship of Coal-Based Lubricating Base Oils and Sensitivities to Typical Additives. Preprints2024, 2024031491. https://doi.org/10.20944/preprints202403.1491.v1
APA Style
Liu, J., Zhang, Z., Zhou, X., Hu, W., Pan, R., & Li, J. (2024). Structure-Performance Relationship of Coal-Based Lubricating Base Oils and Sensitivities to Typical Additives. Preprints. https://doi.org/10.20944/preprints202403.1491.v1
Chicago/Turabian Style
Liu, J., Renmin Pan and Jiusheng Li. 2024 "Structure-Performance Relationship of Coal-Based Lubricating Base Oils and Sensitivities to Typical Additives" Preprints. https://doi.org/10.20944/preprints202403.1491.v1
Abstract
The relationship between the structure characteristics and performances of coal based hydrogenation isomeric base oil (CTL) and metallocene catalyzed coal based polyalphaolefin (mPAO) base oil was clarified here. CTL and mPAO were compared with typical petroleum based and natural gas based commercial API Class III and IV base oils. Pressurized differential scanning calorimetry (PDSC), Rotary Bomb Oxidation Test (RBOT) and four-balls friction tester were used to evaluate the oxidation stability and lubrication performance of base oils under different working conditions. The sensitivity of different base oils to typical antioxidants and extreme pressure antiwear agents was compared. Specially, the composition and structure of CTL base oil are obviously different from GTL and mineral base oil. The coal-based CTL and mPAO base oils exhibit commendable viscosity-temperature properties, characteristics, coupled with low-temperature fluidity, fire safety, and minimal evaporation loss. The lubricating properties, oxidation stability and the sensitivity to extreme pressure antiwear agents of CTL are close to those of similar base oils. But the sensitivity of CTL to typical antioxidants is relatively poor. Besides, compared with commercial PAO base oil, mPAO has lower isomerization degree and fewer isomerization types. The oxidation stability and sensitivity to typical antioxidants of mPAO base oil are comparable with those of commercial PAO base oil, while its lubrication performance and sensitivity to typical extreme pressure antiwear agents are significantly better than those of commercial PAO base oil.
Chemistry and Materials Science, Polymers and Plastics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
