Research and Development of High TBN Ca-Phenates 972955
Recently, numerous researches of overbased calcium sulfurized alkylphenates focused on their total base number (TBN) were reported. And it's well known that a increase of TBN(typically, greater than 300 mg KOH/g) was effective to reduce their cost. However, calcium sulfurized alkylphenates having a TBN greater than 300 have several problems on their unsatisfied performance, such as thermal stability.
COSMO PETROTECH Co., COSMO RESEARCH INSTITUTE, and COSMO OIL Co. have developed a calcium sulfurized alkylphenate “PAD-450” having the TBN greater than 400mgKOH/g.
“PAD-450” has similar performance with conventional calcium sulfurized alkylphenates (TBN =250mgKOH/g) on usual laboratory tests and a marine engine test. The innovational performance of PAD-450 is based on our specific procedure to increase TBN. In addition, we had examined a commercial process of PAD-450 with our plant that designed for calcium sulfurized alkylphenate (TBN=250mgKOH/g) and the results shows that the process is applicable for a conventional plant.
We propose that PAD-450 is the first development of high-performance and high-TBN calcium sulfurized alkylphenates.
Citation: Imai, J., Takeya, H., Takagi, Y., Takei, M. et al., "Research and Development of High TBN Ca-Phenates," SAE Technical Paper 972955, 1997, https://doi.org/10.4271/972955. Download Citation
Author(s):
J. Imai, H. Takeya, Y. Takagi, M. Takei, T. Nishio, S. Ueda, T. Henmi, H. Asada
Affiliated:
COSMO Research Institute, COSMO Petrotech, COSMO Oil Co.
Pages: 8
Event:
International Fuels & Lubricants Meeting & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Lubricants for Passenger Car and Heavy Duty Diesel Engines-SP-1304
Related Topics:
Marine engines
Calcium
Research and development
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