Properties of Heavy Fuel Oil (HFO)
The quality of the heavy fuel oil is largely determined by
the crude oil grade and the refining process applied. This is the reason why
heavy fuel oil of the same viscosity may differ considerably in quality from
one bunker place to another. Heavy fuel oil normally is a mixture of residue oils
and distillates. The components of the mixture often come from state of the art
refining process such as visbreaker of catalytic cracking plant. These process
may have a negative effect on the stability of the fuel and on its ignition and
combustion properties. In this essence these factors also influence the heavy
fuel oil treatment and the operating results of the engine.
S/N
|
Specification
|
Method
|
BPC limit
|
1
|
Density at 15°C Kg/L
|
ASTM D 1298
|
Max. 0.991
|
2
|
Viscosity at 50°C, cst
|
ASTM D 445
|
Max.180
|
3
|
Water & Sediment, % wt
|
ASTM D 1796
|
Max. 0.5
|
4
|
Total sediment Existent, %wt
|
IP 375
|
Max. 0.10
|
5
|
Sediment by Extraction, % wt.
|
ASTM D 473
|
Max. 0.10
|
6
|
Sulphur content, %wt
|
ASTM D 1552
|
Max. 3.5
|
7
|
Ash Content, %wt
|
ASTM D 482
|
Max. 0.10
|
8
|
V, ppm
|
IP 377
|
Max.50
|
9
|
Na, ppm
|
IP 288
|
Max. 16
|
10
|
Asphaltenes, %wt
|
IP 143
|
Max. 14
|
11
|
Flash Point, °C
|
ASTM D 93
|
Max. 60
|
12
|
Pour Point, °C
|
ASTM D 97
|
Max.24
|
13
|
Al, ppm
|
IP 377 mod
|
Max. 30
|
14
|
LHV, KJ/Kg
|
ASTM D 240
|
Min. 39000
|
15
|
Compatibility spot test
|
ASTM D 4740
|
Max. 2
|
16
|
Water by distillation, % Vol
|
ASTM D 95
|
Max. 0.50
|
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ReplyDeleteThank you for sharing this information. Heavy Fuel Oil (HFO) is a category of fuel oils of a tar-like consistency identified as a worse case substance. Please visit Diesel fuel suppliers in UAE
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