Otieno Odhiambo John
Merchant Marine College, Shanghai Maritime University, 1550 HaiGang Avenue, Pudong New District, 201306, Shanghai, China
Wei HaiJun
Merchant Marine College, Shanghai Maritime University, 1550 HaiGang Avenue, Pudong New District, 201306, Shanghai, China
Li PinYou
Merchant Marine College, Shanghai Maritime University, 1550 HaiGang Avenue, Pudong New District, 201306, Shanghai, China
Jia FengGuang
Merchant Marine College, Shanghai Maritime University, 1550 HaiGang Avenue, Pudong New District, 201306, Shanghai, China
ABSTRACT
Near Infra-red (NIR) Spectroscopy method was used to analyze NIR light transmittance through Marine Fuel Oil (MFO) samples. This method uses Separability Number as a measure of asphaltene stability in MFO. The separability number as given by the Near Infrared Optical Scanning Machine (NIR-OSM) directly indicates the stability reserve in the MFO. In this study, an in-depth analysis of separability number to understand its science and meaning as a method for determining asphaltenes stability in MFO is presented. An analysis of rates of asphaltene flocculation, aggregation and settlement for six Intermediate Fuel Oil (IFO 180) samples is also presented. It was realized that separability number is a fast and reliable method for asphaltene stability analysis in MFO. The gradient of the graph of line of best fit for average percentage NIR transmittance can also be used to predict the stability reserve in the MFO. The smaller the gradient value; the more stable is the fuel oil. It was also established that there are three regions of NIR transmittance; low transmittance region, acceleration region and high transmittance region. The dominance of any of the three regions directly influences Separability Number obtained for a sample.
PDF References Citation
How to cite this article
Otieno Odhiambo John, Wei HaiJun, Li PinYou and Jia FengGuang, 2013. Understanding Asphaltenes Stability in Marine Fuel Oil Through Separability Number. Information Technology Journal, 12: 8510-8513.
DOI: 10.3923/itj.2013.8510.8513
URL: https://scialert.net/abstract/?doi=itj.2013.8510.8513
DOI: 10.3923/itj.2013.8510.8513
URL: https://scialert.net/abstract/?doi=itj.2013.8510.8513
REFERENCES
- Trejo, F., J. Ancheyta and M.S. Rana, 2009. Structural characterization of asphaltenes obtained from hydroprocessed crude oils by SEM and TEM. Energy Fuels, 23: 429-439.
CrossRef - Gawrys, K.L. and P.K. Kilpatrick, 2004. Asphaltene aggregation: Techniques for analysis. Instrum. Sci. Technol., 32: 247-253.
CrossRef - Gharfeh, S., A. Yen, S. Asomaning and D. Blumer, 2004. Asphaltene flocculation onset determinations for heavy crude oil and its implications. Petrol. Sci. Technol., 22: 1055-1072.
CrossRef