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

Detecting phase transitions in high-pressure CO2 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 CO2 as an environ...

Full description

Saved in:
Bibliographic Details
Published in:Proceedings of the Royal Society. A, Mathematical, physical, and engineering sciences Mathematical, physical, and engineering sciences, 2010-10, Vol.466 (2122), p.2799-2818
Main Authors: Ke, Jie, Sánchez-Vicente, Yolanda, Akien, Geoffrey R., Novitskiy, Alexander A., Comak, Gurbuz, Bagratashvili, Victor N., George, Michael W., Poliakoff, Martyn
Format: Article
Language:English
Subjects:
2010 Anniversary Series
Carbon dioxide
Chemical mixtures
Critical Points
Fluids
Green Chemistry
High Pressure
High temperature
Liquid phases
Liquids
Phase Equilibrium
Pressure reduction
Review
Sensors
Supercritical Fluids
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Detecting phase transitions in high-pressure CO2 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 CO2 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.
ISSN:1364-5021
1471-2946
DOI:10.1098/rspa.2010.0267