|
pseudocomponent ___________3___________ |
mol wt Mj |
mass fraction of |
|
1 |
IOOO |
Œ025 |
|
2 |
9500 |
0.096 |
|
3 |
19500 |
0.115 |
|
4 |
32500 |
0.14 |
|
5 |
50000 |
0.128 |
|
6 |
80000 |
0.16 |
|
7 |
137500 |
0.13 |
|
8 |
212500 |
0.06 |
|
9 |
325000 |
0.1 |
|
________10________ |
900000 |
__________0.046__________ |
Table 2.4: Molecular weight distribution of HDPE as characterized by Gross and Sad-
owski [48]
|
pseudocomponent __________i__________ |
mol wt Mj |
mass fraction of |
|
1 |
432.23 |
~ 0.043995541 |
|
2 |
27696 |
0.616896145 |
|
3 |
341590 |
0.317484536 |
|
4 |
2295800 |
0.021433497 |
|
5 |
11740000 |
0.000190184 |
|
__________6__________ |
55579000 |
_______9.73E-08_______ |
Table 2.5: Molecular weight distribution of HDPE as characterized by Tork et. al. [94]
docomponents. The new EOS is in better agreement with the experimental data as
compared to PC-SAFT. The liquid-liquid (LL) two phase domain is broader and the
predicted phase envelope is significantly closer to the experimental data at higher PE
concentrations. Thus the set of parameters for HDPE not only give better estimates
of its liquid densities in a wide range of pressure and temperature but also predict
better liquid-liquid phase behavior of HDPE in various solvents. This is a signifi-
cant improvement considering the industrial importance of predicting accurate phase
behavior of polymer systems.
59
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