2009, №1

сс. 49-56

A New Continuous Method for Monitoring of Phase Behaviour of Complex Mixtures at High Pressures and Temperatures

2009, №1

сс. 49-56

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A.A. Novitsky, M. Hou, E.E. Pérez, J. Ke, W. Wu, V.N. Bagratashvili, M. Poliakoff

Key words: supercritical fluids, phase behavior, hollow fibers

New method to monitor phase behavior of  mixtures at high pressures and temperatures        was developed on basis of continuous  sampling by use of glass capillary. Such technique        gives opportunity not to disturb  equilibrium in the system and to get information        about phase state in continuous flow  systems at different stages of process. As a detector        the flame-ionization detector (FID) was  chosen due to the fact that our solvents are        not flammable and will not give signal. Method  was validated using two different setups        on systems: water.ethanol and CO2 acetone.