Wartsila 46DF - Page 76

6.1.2.3 0,10% m/m sulphur fuels for SECA areas
Due to the tightened sulphur emission legislation being valid since 01.01.2015 in the specified
SECA areas many new max. 0,10% m/m sulphur content fuels have entered the market. Some
of these fuels are not pure distillate fuels, but contain new refinery streams, like hydrocracker
bottoms or can also be blends of distillate and residual fuels.
The new 0,10% m/m sulphur fuels are called as Ultra Low Sulphur Fuel Oils (ULSFO) or
sometimes also as “hybrid” fuels, since those can contain properties of both distillate and
residual fuels. In the existing ISO 8217:2017(E) standard the fuels are classed as RMA 10,
RMB 30 or RMD 80, if not fulling the DM grade category requirements, though from their
properties point of view this is generally not an optimum approach. These fuels can be used,
but special attention shall be paid to optimum operating conditions. See also Services
Instruction WS02Q312.
Test method refer-
ence
RMD 80RMB 30RMA 10UnitCharacteristics
-6,0 - 246,0 - 246,0 - 24
mm
2
/s
a)
Kinematic viscosity bef. injection pumps
c)
ISO 310480,0030,0010,00
mm
2
/s
a)
Kinematic viscosity at 50 °C, max.
ISO 3675 or ISO
12185
975,0960,0920,0
kg/m
3
Density at 15 °C, max.
ISO 8217, Annex F860860850-
CCAI, max.
e)
ISO 8574 or ISO
14596
0,100,100,10% m/m
Sulphur, max.
b)
ISO 271960,060,060,0°CFlash point, min.
IP 5702,002,002,00mg/kgHydrogen sulfide, max.
ASTM D6642,52,52,5
mg
KOH/g
Acid number, max.
ISO 10307-20,100,100,10% m/mTotal sediment aged, max.
ISO 1037014,0010,002,50% m/mCarbon residue, micro method, max.
ASTM D32798,06,01,5% m/m
Asphaltenes, max.
c)
ISO 30163000°C
Pour point (upper), max., winter quality
d)
ISO 30163066°C
Pour point (upper), max., summer quality
d)
ISO 3733 or
ASTM D6304-C
c)
0,500,500,30% v/vWater max.
ISO 3733 or
ASTM D6304-C
c)
0,300,300,30% v/v
Water bef. engine, max.
c)
ISO 6245 or
LP1001
c, h)
0,0700,0700,040% m/mAsh, max.
IP 501, IP 470 or
ISO 14597
15015050mg/kg
Vanadium, max.
f)
IP 501 or IP 47010010050mg/kg
Sodium, max.
f)
IP 501 or IP 470303030mg/kg
Sodium bef. engine, max.
c, f)
IP 501, IP 470 or
ISO 10478
404025mg/kgAluminium + Silicon, max.
IP 501, IP 470 or
ISO 10478
151515mg/kg
Aluminium + Silicon bef. engine, max.
c)
6-6 DBAD209883
Wärtsilä 46DF Product Guide6. Fuel System