Sample
The ratio oil:precipitant upon addition the first portion of the precipitant
1:40
1:30
1:20
1:10
I fr.,%
II fr.,%
Σ,%
I fr.,%
II fr.,%
Σ,%
I fr.,%
II fr., %
Σ,%
Crude oil
11.0-12.0
11.9
0.1
12
12
0.2
12.2
11.5
0.5
12
Table 3:
The content of asphaltenes obtained from crude oils by two-step precipitation and standard precipitation techniques.
