Article citationsMore>>
Chernyshev, A.K., Gumerov, F.M., Tsvetnitskiy, G.N., Yarullin, R.S., Ivanov, S.V., Levin, B.V., Shafran, M.I., Zhilin, I.F., Beskov, A.G. and Chernyshev, K.A. (2013) Carbon Dioxide: Properties, Collection (Obtaining), Application. Infohim, Moscow, 580-694.
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TITLE:
Extending Functionality of Microalgae and Transesterification under Supercritical Fluid Conditions
AUTHORS:
Chamil A. Biktach, Rustem A. Usmanov, Farid M. Gumerov, Zufar I. Zaripov, Farizan R. Gabitov, Vener F. Khayrutdinov, Ilmutdin M. Abdulagatov
KEYWORDS:
Supercritical Methanol, Transesterification, Biodiesel, Microalgae, Supercritical Fluid, Supercritical Carbon Dioxide
JOURNAL NAME:
American Journal of Analytical Chemistry,
Vol.5 No.16,
November
25,
2014
ABSTRACT: The experimental data on supercritical CO2 extraction of microalgae are presented. It is confirmed that microalgae contains omega-3 fatty acid components. Phase equilibria data are presented for the triolein-methanol (T = 413 K, P = 5.8 - 11.9 MPa) and ethyl eicosapentaenoate-carbon dioxide (T = 313 - 333 K, P = 10 - 21 MPa) binary systems. The scheme of the batch-type experimental setup for supercritical transesterification of oils is presented. Temperature and molar ratio dependences of non-refined palm oil yield to fatty acid methyl esters (FAME) are presented for T = 563 - 693 K, methanol to palm oil molar ratio 39:1. Experiments on ultrasonic emulsification of rapeseed oil-ethanol mixture (molar ratios 150:1 - 7:1) were conducted. Research data on ultrasonic emulsion stability are presented for the time range of 0 - 40 minutes after ultrasonication completion. Correlation is defined between FAME yield of emulsified reaction mixtures and the emulsion grain size. FAME yields are compared for emulsified and non-emulsified reaction mixtures.