Detecting phase transitions in supercritical mixtures : an enabling tool for greener chemical reactions

Ke, Jie and Sanchez-Vicente, Yolanda and Akien, Geoffrey R. and Novitskiy, Alexander A. and Comak, Gurbuz and Bagratashvili, Victor N. and George, Michael W. and Poliakoff, Martyn (2010) Detecting phase transitions in supercritical mixtures : an enabling tool for greener chemical reactions. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 466 (2122). pp. 2799-2818. ISSN 1364-5021

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Abstract

Detecting phase transitions in high-pressure CO(2) and supercritical fluids was first attempted in the nineteenth century. By contrast, Green Chemistry, the design and implementation of cleaner methods of manufacturing and processing chemicals, is barely 20 years old. Now, the use of CO(2) as an environmentally more acceptable replacement for traditional solvents for greener chemical reactions is creating the need for new, more rapid methods for elucidating high-pressure phase behaviour. This paper describes the advantages and limitations of a number of approaches, developed in Nottingham, to meet this need, including acoustic measurements, shear-mode quartz sensors, the fibre-optic reflectometer, the use of holey fibres, attenuated total reflectance infrared spectroscopy and pressure drop measurements.

Item Type:
Journal Article
Journal or Publication Title:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3100
Subjects:
?? phase equilibriumsensorssupercritical fluidsgreen chemistryhigh pressurecritical pointsmode piezoelectric sensorcritical-point changecarbon-dioxideacoustic determinationfluid mixtureshigh-pressuresco2equilibriahydroformylationtemperaturesgeneral physics a ??
ID Code:
72447
Deposited By:
Deposited On:
22 Jan 2015 10:14
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jul 2024 09:40