EFFECT OF EXCESS SINGLE n-ALKANE SOLVENTS ON HEAVY ORGANIC PRECIPITATION IN CRUDE OIL FROM AFIESERE OIL-FIELD

Authors

  • O.M. Frank Department of Chemistry, Rivers State University of Science and Technology, Port Harcourt, Nigeria
  • N. Boisa
  • S.E. Ofodile

Abstract

Heavy organics (HOs) precipitation is one of the flow assurance problems for the oil and gas industries. Precipitation can be significantly affected by the changes in composition, temperature and pressure of crude oil. Five (5) normal alkanes – nC5, nC6, nC7, nC8 and nC10) were used and the amount of heavy organics precipitation determined. The Heavy Organic weight percentage (wt. %) decreases as the molecular weight of the precipitating solvents (precipitant) increases (nC5 to nC10). nC5 has a wt.% of 1.64±0.01 HO precipitated, nC6 1.06±0.01; nC7 1.04±0.00; nC8 0.97±0.01 and nC10 0.78±0.01. Therefore, nC10 is a better solvent for HO precipitation than nC8; nC8 better than nC7; nC7 better than nC6 and nC6 better than nC5. This may be due to the solvent power of the precipitant, the solubility factor and polarity effect of the individual n-alkanes present in the crude oil medium. Keywords: Heavy Organics, Precipitation, Crude oil, normal alkanes, 

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Published

2017-02-10

How to Cite

Frank, O., Boisa, N., & Ofodile, S. (2017). EFFECT OF EXCESS SINGLE n-ALKANE SOLVENTS ON HEAVY ORGANIC PRECIPITATION IN CRUDE OIL FROM AFIESERE OIL-FIELD. Journal of Chemical Society of Nigeria, 41(1). Retrieved from http://www.journals.chemsociety.org.ng/index.php/jcsn/article/view/48

Issue

Vol. 41 No. 1 (2016)

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Articles

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Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution (CC-BY) 4.0 License that allows others to share the work with an acknowledgment of the work’s authorship and initial publication in this journal.