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(a)
5,000
IZA
Predicted
Predicted low density
4,000
3,000
2,000
1,000
0
10 -6
10 -5
10 -4
10 -3
10 -2
10 -1
10 0
Henry coefficient of CO 2 (mol/(kg Pa))
(b)
5,000
Zeolite
Predicted ZIF(IM)
4,000
3,000
2,000
1,000
0
10 -6
10 -5
10 -4
10 -3
10 -2
10 -1
10 0
Henry coefficient of CO 2 (mol/(kg*Pa))
Figure 6.4.3 Parasitic energy for zeolites and ZIFs
(a) The predicted parasitic energy as a function of the Henry coeffi cient of CO 2 for all
silica zeolite structures: the known zeolite structures (red squares) as well as the
predicted structures (blue circles). The green line gives the parasitic energy of the
current MEA absorption technology for comparison, and the black line is the minimal
parasitic energy observed for a given value of the Henry coeffi cient in the all-silica
structures.
(b) The predicted parasitic energy as a function of the CO 2 Henry coeffi cient for ZIFs is
shown. The green line gives the parasitic energy of the current MEA absorption
technology, for comparison, and the black line is the minimal parasitic energy calcu-
lated for a given value of the Henry coeffi cient in the all-silica structures. In this
graph, we plotted a representative fraction of all structures.
Figures reproduced with permission from Lin et al. [6.4] .
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