| Summary: | 碩士 === 中原大學 === 化學工程研究所 === 82 === The solubilities of the mixtures of CO2 and H2S in aqueous MEA
(monoethanolamine) / AMP (2-amino-2-methyl-1-propanol)
solutions have been measured. The systems studied are CO2/MEA/
AMP/H2O,H2S/MEA/AMP/H2O,and CO2/H2S/MEA/AMP/H2O. For CO2/MEA/
AMP/H2O and H2S/MEA/AMP/H2O solutions,six blended amines solut
ions(a total of 30 wt%) were selected for measurements for tem
peratures 40 to 100 C. For CO2/H2S/MEA/AMP/H2O systems, the va
por-liquid equilibrium studied are 3M MEA + 2M AMP and 2M MEA
+3 M AMP at temperatures 40 and 80 C and for the partial press
ures of the acid gases (CO2 or H2S) ranging from 1.0 to 160 kP
a. THe obtained vapor-liquid equilibrium data have been correl
ated based on the method of Kent and Eisenberg. The binary par
ameters in the model were determined by fitting to the equilib
rium solubility data.Satisfactory results were obtainded for
calculation of the solubility of CO2 and H2S in MEA + AMP aque
ous solutions for the systems tested. The use of blended amine
s in gas-treating process has been shown to be attractive and
with great potenial.The results of this study can be used as an
important vapor-liquid equilibrium data base for design of the
gas treating process units using MEA / AMP as absorption fluids.
Also,the data can also be used to develop thermodynami ces
model involving the solubilities of CO2 and H2S in MEA + AMP
+water systems.
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