Page 98 - Characterization and Properties of Petroleum Fractions

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QC: —/—
T1: IML
P1: KVU/—
AT029-Manual
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78 CHARACTERIZATION AND PROPERTIES OF PETROLEUM FRACTIONS
1050
API Data August 16, 2007 16:6
Winn
R-D
Twu
900 Ext. R-D
L-K
Critical Temperature, K 750
API
R-S

600

450
0 10 20 30 40 50 60
Carbon Number
FIG. 2.17—Comparison of various methods for estimation of critical temperature of n-
alkanes. API Data: API-TDB [2]; Winn: Eq. (2.94); R-D: Riazi–Daubert, Eq. (2.63); Twu:
Eq. (2.80)–(2.82); Ext. R-D: Extended Riazi-Daubert, Eq. (2.67); L-K: Lee–Kesler: Eq. (2.69);
API: Eq. (2.55); R-S: Riazi–Sahhaf, Eq. (2.42); and Table 2.6.

50

API Data
40 Winn
R-D
API
Ext. R-D
L-K
P-F
Critical Pressure, bar 20
30
R-S
--`,```,`,``````,`,````,```,,-`-`,,`,,`,`,,`---

10

0
0 5 10 15 20 25 30 35 40 45 50
Carbon Number
FIG. 2.18—Comparison of various methods for estimation of critical pressure of n-
alkylcyclopentanes. API Data: API-TDB [2]; Winn: Eq. (2.95); R-D: Riazi–Daubert, Eq. (2.64);
API: Eq. (2.56); Ext. R-D: Extended Riazi–Daubert, Eq. (2.68); L-K: Lee–Kesler, Eq. (2.70);
P-F: Plan–Firoozabadi, Eq. (2.43); and Table 2.8; R-S: Riazi–Sahhaf, Eq. (2.42); and Table 2.6.

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