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Biotechnology Letters

, Volume 7, Issue 6, pp 406–408 | Cite as

Testing of microbial demulsifiers with heavy crude emulsions

  • M. A. Wilkinson
  • D. G. Cooper
Article

Summary

It has already been demonstrated that model water-in-kerosene systems and toluene diluted heavy crude oil emulsions can be broken by microbial agents. In this studyN. amarae andR. rhodochrous are used on undiluted, water-in-heavy crude oil emulsions. The high viscosity of the undiluted emulsions severely limits the demulsifying ability of the bacteria towards these field emulsions.

Keywords

Viscosity Toluene High Viscosity Microbial Agent Crude Emulsion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Becher, P. (1965) Emulsions: Theory and Practice, Reinhold Publishing Corp.Google Scholar
  2. Cairns, W.L.; Cooper, D.G.; Zajic, J.E.; Wood, J.M.; Kosaric, N., (1982), Characterization ofNocardia amarae as a potent biological coalescing agent of water/oil emulsions. Appl. environ. microbiology,43, pp 362–366.Google Scholar
  3. Cairns, W.L.; Cooper, D.G.; Kosaric, N., (1983), Bacteria-induced Demulsification in Microbial Enhanced Oil Recovery (Editors J.C. Zajic, D.G. Cooper, T.R. Jack, and N. Kosaric, Penn Well Books, Tulsa, pp. 106–113.Google Scholar
  4. Cooper, D.G.; Zajic, J.E.; Cairns, W.L.; Kosaric, N., (1980), De-emulsification and microbes. Biochemical engineering Research Reports, University of Western Ontario,6, pp. 1–178.Google Scholar
  5. Stewart, A.L., Gray, N.C.C.; Kosaric, N., (1983), Bacteria induced de-emulsification of water-in-oil petroleum emulsions, Biotechnology Letters5, 725–730.Google Scholar
  6. Wilkinson, M.A.; Cooper, D.G.; Goldenberg, B.G., (1985), The use of capacitance measurements to monitor coalescing emulsions. Microbes and Oil Recovery,1, 260–266.Google Scholar

Copyright information

© Kluwer Academic Publishers 1985

Authors and Affiliations

  • M. A. Wilkinson
    • 1
  • D. G. Cooper
    • 1
  1. 1.Department of Chemical Engineering McConnell Engineering BuildingMcGill UniversityMontrealCanada

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