THE 3 rd INTERNATIONAL SCIENTIFIC CONFERENCES OF STUDENTS AND YOUNG RESEARCHERS dedicated to the 99
th
anniversary of the National Leader of Azerbaijan Heydar Aliyev
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and 85 °C, respectively. They are partially soluble in ethanol and the first salt
is yellowish solid while the second one is slightly pink solid.
The petrodispersing and petrocollecting capabilities of surfactants were
investigated using a well-known technique described in [3]. 40 ml of water
are placed in a Petri dish. 1 ml of crude oil (in this case, Pirallahi) is spread
over the water (thickness of the film ~ 0.17 mm). Then, 0.02 g of the
surfactant (or its 5 wt%. solution) is added to the film from the sidewards. The
surface area of the initial oil film and current areas of the formed oil slicks are
measured at certain time intervals. The coefficient Kd denotes the degree of
surface cleaning (in %) and K is the coefficient of collecting.
Table 1: The maximum petrodispersing and petrocollecting properties of salt
According to Table 1, the first salt shows the maximum petrodispersing
property in the distilled water treated with 5 wt% ethanolic solutions while its
maximum petrocollecting property is obtained in seawater treated with 5 wt%
ethanolic solutions. On the other hand, the petrodispersing factor of the
second salt is seen in distilled water treated with 5 wt% aqueous solutions.
However, the maximum petrocollecting property is examined in distilled
water treated with 5 wt% ethanolic solutions.
Ratio
State of
surfactant
Distilled Water
Tap Water
Sea Water
1:1
Kd
(%)
K
Duration
(hr)
Kd
(%)
K
Duration
(hr)
Kd
(%)
K
Duration
(hr)
5 wt%
aqueous
solution
91
-
0-46
-
14
0-46
-
9
0-70
5 wt%
ethanolic
solution
96
-
0-0.3
95
-
0-97
-
38
0-23
Solid
-
19
0-70
-
20
0-70
95
-
0-20
2:1
5 wt%
aqueous
solution
45
-
0-0.3
-
10
0-70
-
9
0-97
5 wt%
ethanolic
solution
-
29
0-97
-
13
0-97
-
20
0-70
Solid
-
3
0-70
-
17
0-46
-
11
0-70