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categoryهندسة نفط وغاز
schoolبكالوريوس
event_available2026-07-13
السؤال
Transcribed Image Text:
Q1: A naphtha was subject to ASTM D 86 distillation analysis. The data were given below:
Table 1 ASTM D 86 Distillation data
You are to:
Vol%
Temperature, °C
0.0
138.8
10.0
149.6
30.0
158.8
50.0
165.8
70.0
169.9
90.0
178.1
95.0
180.4
1) Drive the True boiling Point (TPB) curve, (e.g. using XLS)
2) Extrapolate the curve to the 100% volume fraction; (e.g. using polynomial fittings)
3) If the SG of the naphtha is 0.801, calculate:
a. the API gravity of the naphtha
b. Calculate and plot the SG for each fraction listed in Table 1
c. Plot the volume fraction versus the SG of each fraction into a figure
d. The K value
e. The Molecular Mass of each fraction in Table 1.
f. The viscosity @ 37.8°C (assuming the parameters can be taken from the fractions at 30°C in
Table 1)
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