Page 145 - Gas Purification 5E

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Table 2-1 9
Approximate DEA and DGA Lean Solution loadings for Various Operating Conditions

Stripping Steam Lean Solution Loading
Regenerator
Wt% Ib steam/ mol H20/ Bottom L/R Exchanger Feed Gas mol AG/ mol C02/ mol H2S/
Amine Aniine gal sol'n mol AG Temp., OF Approach, OF C02/H2S mol amine mol amine mole amine
~~ ~
DEA -20 -1.2 - - - >I0 <0.07 CO.O1
DEA -20 -1.2 - - - <IO CO.W co.01
DEA 20 I .o I .7 240 - 0.5 <0.01 co.01
DEA 20 1.2 3.2 230 30 0.4 <o.o 1 co.0 1
DEA 25 0.9 0.4-0.6 - - 0.3 - 0.004-0.01 1
DEA 20-22 1.1 - 230 56 I .o - 0.0054.006
DEA 20 1 .o 1.7 240 - 0.5 0.01 0.005
DGA 60 I .5 1 .5 250 30 I .O - -
DGA 54 - 3.7 250 67 1.1 0.04 0.01
DGA 67 I .6 - 27 I 42 2.9 0.01 Trace
DGA 55 1.1 I .4 246 54 34 0.09 Trace
DGA 62 1.1 1.1 247 20 4.0 0.06 0.01