Alfa Laval has a unique depth of expertise in marine
fuel treatment, encompassing not just fuel separators but the whole chain from
bunker tank to engine.
operations change in response to fuel sulphur regulations, the company is
optimizing and updating the technologies in its portfolio to meet the new
challenges. The result will be improved engine protection and increased energy
efficiency, despite more varied and less predictable fuels.
With the global sulphur cap taking in effect in 2020,
onboard fuel handling will become more complicated than ever before. “There
will be many options for compliance and every vessel will have to choose the
route that makes most sense for their operation,” explains Serdar Sengun,
Global Sales Manager Marine Separation, Alfa Laval. “No matter what customers
choose, it will have dramatic implications for the fuel line. But Alfa Laval is
taking a complete and forward-thinking approach to fuel line optimization.”
A number of new fuels and fuel blends have already entered the market, and more
are likely to appear once the global sulphur cap is in place.
For many fleets, 2020 will also mean going from
existing single-fuel systems to multi-fuel operations. If not managed properly,
using multiple fuel oils can result in a variety of issues – especially when
the fuels are unfamiliar. The problems can range from clogged fuel systems to,
in the worst case, engine stoppage.
“As refineries recalibrate for lower sulphur content,
we also anticipate a continued increase in the proportion of cat fines in
marine fuel oils,” adds Sengun. “Already, we have seen a huge rise in cat
fines, which cause major problems if not separated from the fuel before it
reaches the engine.”
Meeting the challenges of more varied fuels will affect the fuel line as a
whole. Centrifugal separators, which are the primary defence against cat fines,
will need to perform at different capacities and with new levels of efficiency.
Fuel conditioning systems will need to handle fuels with more widely differing
properties, using embedded automation to avoid handling mistakes and perform
safe changeover within the required engine parameters. Overall, the existing
synergies between fuel line equipment and the engine itself will need to be
“Matching the separator feed to engine load is
critical to achieving the highest efficiency and engine protection, as field
tests have clearly shown,” says Sengun. “After separation, matching the fuel to
the maker’s specifications is critical for the engine, its injection systems
and the safety of the vessel. All of these processes have to occur smoothly and
safely, no matter what fuel is used.”