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Table 4 Properties of Physical Solvents
Process Fluor Purisol Selexol Sulfinol a
Solvent Propylene N-Methyl Diethylene Sulfolane
carbonate pyrrilidone dimethyl ether
Structure
Molecular weight 102.09 99.13 134.17 120.17
Freezing ( F) 56 12 83 77
Boiling ( F) 467 396 324 546
3
3
Gas solubility (cm gas at 1 atm, 75 F/cm solvent)
H 2 S 13.3 43.3 25.5
CO 2 3.3 3.8 3.6
COS 6.0 10.6 9.8
C 3 2.1 3.5 4.6
a
Sulfinol is a mixture of sulfolane þ DIPA þ H 2 O.
Figure 8 Fluor process.
Copyright 2003 by Marcel Dekker, Inc. All Rights Reserved.
