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مجلة النفط والتعاون العربي
161
العدد
- 2017
أربعون
المجلد الثالث و ال
2016
أوابك العلمية لعام
�
ص لبحوث العلمية الفائزة بجائزة
�
عدد خا
32
22
oil containing a portion of all the above. In a car maintenance garage perhaps only
gasoline automotive oils are found and in trucking company workshops mostly
diesel automotive oils are found and so on. Any combination of the above is not
problematic for either the re-refining industry or for energy recovery by burning.
However, due to inexperience and sometimes carelessness of the operators or due
to accidents, used oil is contaminated with solvents, water, glycols, kerosene and
the like.
Table (2)
Used Oil Analysis
–
Re-refining
Parameter
Unit
Value (Max)
Water
% weight
15
Density at 15
o
C
Kg/l
0.920
Total sediments
% weight
3.0
Viscosity
o
E at 50
o
C
1.8
PCBs
mg/kg
25
Total chlorine
% weight
0.5
Sulpher
% weight
1.5
Diluents
% volume
5.0
Lead
–
Zinc
mg/kg
4000
Cadmium + Chrome +
Nickel + Vanadium
mg/kg
50
Neutralization Nr
mg KOH/g
3.5
Saponification Nr
mg KOH/g
18
Used Oil Analysis
–
Burning
Parameter
Unit
Value (Max)
Water
% weight
15
Density at 15
o
C
Kg/l
0.920
Total sediments
% weight
3.0
Flash Point
o
C
Min 90
PCBs
mg/kg
25
Total chlorine
% weight
0.5
Sulpher
% weight
1.5
Ash
% volume
1.5
Lead
–
Zinc
mg/kg
4000
Cadmium + Chrome +
Nickel + Vanadium
mg/kg
50
Lead
mg/kg
2000
Fluorine
mg/kg
Traces
Source: 104