TY - JOUR
T1 - Detecting phase transitions in supercritical mixtures: an enabling tool for greener chemical reactions
AU - Ke, Jie
AU - Sanchez-Vicente, Yolanda
AU - Akien, Geoffrey R.
AU - Novitskiy, Alexander A.
AU - Comak, Gurbuz
AU - Bagratashvili, Victor N.
AU - George, Michael W.
AU - Poliakoff, Martyn
PY - 2010/10/8
Y1 - 2010/10/8
N2 - 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.
AB - 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.
KW - phase equilibrium
KW - sensors
KW - supercritical fluids
KW - Green Chemistry
KW - high pressure
KW - critical points
U2 - 10.1098/rspa.2010.0267
DO - 10.1098/rspa.2010.0267
M3 - Review article
VL - 466
SP - 2799
EP - 2818
JO - PROC. R. SOC. - A.
JF - PROC. R. SOC. - A.
SN - 0950-1207
IS - 2122
ER -