Page 284 - Gas Purification 5E

268 Gas Purification

Table 3-9
Solubility of Methane and Ethane in Aqueous MEA and DEA Solutions

Vapor Pressure-psia
Amine wt% Temperature Solubility
Type Amine OF Methane Ethane VolJVol.
MEA 15 100 954 - 1.55
MEA 15 150 498 - 0.73
MEA 15 150 993 - 1.37
MEA 15 100 - 49 1 0.92
MEA 15 100 - 868 1.19
MEA 15 150 - 50 1 0.74
MEA 15 150 - 955 1.18
DEA 25 100 510 - 0.76
DEA 25 100 968 - 1.42
DEA 25 150 51 1 - 0.68
DEA 25 150 982 - 1.28
DEA 25 200 516 - 0.61
DEA 25 200 920 - 1.19
DEA 25 100 - 480 0.91
DEA 25 100 - 868 1.19
DEA 25 150 - 498 0.74
DEA 25 150 - 972 1.13
Note: Gas volume at 60°K 14.7psia.
Source: Lawson and Garst (1976)

Table 3-10
Solubility of Methane in 25 wt%~ Aqueous DEA Containing H# or COP

MollMol DEA
Temperature Vapor Pressure Solubility
OF psia H2S co2 VolJVol.
100 973 0.20 1.27
100 862 1.10 1.07
150 456 0.19 0.47
150 495 0.25 0.54
150 95 1 0.20 1.03
100 500 0.27 0.65
100 956 0.27 1.16
150 489 0.25 0.55
150 970 0.25 0.97
Note: Gas volume at 60°F. 14.7psia.
Source: Fluor Daniel (1996)