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Alkanolamines for Hydrogen Suljide and Carbon Dioxide Removal 103
TEMPERATURE, OF
Figure 2-69. Viscosity of diethanolamine solutions.
(text conrinuedfrom page 99)
The physical properties of aqueous solutions of the sterically hindered amine, 2-amino-2
methy1-1-propanol (AMP) are described by Xu et al. (1991). Additional amine physical
prop=rty data are available from manufactwm and process licensors. The volume of such
data is so large that it would be impractical to include it all in this text.
PROCESS DESIGN
Design Approach
The design of amine plants centers around the absorber, which performs the gas purifica-
tion step, and the stripping system which must provide adequately regenerated solvent to the
absorber. After selecting the amine type and concentration, as discussed in a previous sec-
tio~ key items which need to be determined by the designer are the required solution flow
rate; the absorber and stripper types (tray or packed), absorber and stripper heights and diam-
eters: and the thermal duties (heating and cooling) of all heat transfer equipment. Various
(tat continued on page 108)
