Aluvihara, S., Premachandra, J. (2019). Study on the effect of different types of crude oils on the rate of corrosion and the properties of some selected ferrous metals. International Journal of Research in Industrial Engineering, 8(1), 66-76. doi: 10.22105/riej.2019.170944.1078
S. Aluvihara; J. K. Premachandra. "Study on the effect of different types of crude oils on the rate of corrosion and the properties of some selected ferrous metals". International Journal of Research in Industrial Engineering, 8, 1, 2019, 66-76. doi: 10.22105/riej.2019.170944.1078
Aluvihara, S., Premachandra, J. (2019). 'Study on the effect of different types of crude oils on the rate of corrosion and the properties of some selected ferrous metals', International Journal of Research in Industrial Engineering, 8(1), pp. 66-76. doi: 10.22105/riej.2019.170944.1078
Aluvihara, S., Premachandra, J. Study on the effect of different types of crude oils on the rate of corrosion and the properties of some selected ferrous metals. International Journal of Research in Industrial Engineering, 2019; 8(1): 66-76. doi: 10.22105/riej.2019.170944.1078
Study on the effect of different types of crude oils on the rate of corrosion and the properties of some selected ferrous metals
1Department of Chemical and Process Engineering, Faculty of Engineering, University of Peradeniya, Perqadeniya, Sri Lanka.
2Department of Chemical and Process Engineering, Faculty of Engineering, University of Moratuwa, Katubedda, Sri Lanka.
Abstract
Crude oil is a predominant natural resource and also it causes the metallic corrosion in the industry of crude oil refining due to some corrosive properties of crude oils. In the current research, it is expected to investigate the effect of such compounds of crude oils on the rate of corrosion of seven different types of ferrous metals which are frequently used in the crude oil refining industries. The sulfur content, salt content, acidity, and mercaptans content of each crude oil are determined in order to use XRF analyzer, salt analyzer, and titration methods. A set of equal size metal pieces are immersed in both crude oils separately for 15, 30, and 45 days and their corrosion rates are determined by using relative weight loss after these time periods while observing the corroded metal surface under the optical microscope, and the dissolved metal concentration in each crude oil sample is tested by the AAS. The hardness of each metal piece is tested before and after the immersion in crude oil with the aid of Vicker’s hardness tester. It is found that a higher amount of sulfur, acidity, and mercaptans and lower amount of salt present in Das blend than Murban. We have found there is some significant rate of corrosion from most of the metals and higher amount of dissolved metallic concentration in samples of both crude oils with respect to those metals. It is observed that there is a slight reduction in hardness of all metal pieces due to the corrosion.
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