Noura Dawass

6.3. R ESULTS AND DISCUSSION 6 129 Figure 6.7: Absorption isothermof N 2 inMEG at T = 373.15 K. Closed symbols are solubilities from MC simulations (details in section 6.2) and open symbols are experimental data from Ref. [177] . solubilities is exhibited: H 2 S > CO 2 > CH 4 > N 2 . From the Henry coefficients, the ideal selectivity of the desired component i from the undesired component undesired component j can be expressed as [230] S i / j = · H j H i ¸ T (6.7) In Table 6.5, ideal selectivities for the separation of CO 2 using MEG are provided, computed using Henry coefficients from experiments and MC simulations. The results show that CO 2 is more selectively absorbed in MEG than CH 4 and N 2 . However, that is not the case for the separation of CO 2 using MEG in the presence of H 2 S.