How does the Fuel polishing system work?
Clean fuel is
returned to
the tank
Diesel Fuel Tank
Fuel taken
from tank
Processed and cleaned by
the Fuel Polishing System
Di rt y Fu e l
Fu e l
Con dit i on in g
Cir cu l a r
Mot ion
Cen t r ifu ge
V an e
Se p ar at i on
Fu e l T an k
Po li sh e d
Fu e l
Mix in g &
O pt i mi s at i on
El em en t
St r ain in g
G ra vit y
Se p ar at i on
F u e l T a ke n f ro m t an k
T he F P S wi l l dr a w f u el f r om th e t ank . W e r ec om m end t h at t he dr a i n is t ak en f r om t he
l o wes t p o i nt t o e ns ur e a l l c o nt am in at e is c au gh t a nd pum pe d i n t o t he f u e l po l is h in g
s ys tem .
Fu e l
Con dit i on in g
Cir cu l a r
Mot ion
Cen t r ifu ge
V an e
Se p ar at i on
G ra vit y
Se p ar at i on
El em en t
St r ain in g
Mix in g &
O pt i mi s at i on
St ag e 1.
F u e l co n d it io n in g
Ma g ne t ic f u e l c o n di t io n in g pr oc es s to a l i gh t an d d e gr a d e a lg a e a n d
ot h er b io l o gic a l c o nt a m inat i o n, t h is m ak es t he wa ter s e p ar at i on
s ec t i on f ar m or e ef f ic i en t.
St ag e 2.
Ci rc u l a r mo t i o n
F r om th e i n l et p or t, f u e l f l o ws thr o ug h t he in ter i or v a ne s ys t em
wh ic h im par ts a c ir c u l ar m ot i on t o t he f u e l.
St ag e 3.
Cen t r if u g e
St i l l i n t he c ir c u l ar m oti on f u el r eac h es th e b o wl s ec t io n, wh er e, d u e
to t h is c e ntr if u g al m ot i on wa ter d r o p le ts a n d he a v i er p ar t ic les ( do w n
to 3 0 m ic r o ns i n s i ze ) ar e f or c e d to t h e wa l l of t h e bo wl , e v e nt u al l y
s et t li n g i n th e b ot t om of t h e bo wl .
St ag e 4.
V an e se p a r at i o n
In t h is s ta g e th e f ue l h as to pas s t h e v an e s ys tem p os it i on e d o n th e
“ ou ts id e” of t he c e n tr a l h ous i n g. D ue t o t he d if f er i ng l en gt h of th e
v an es a n d th e t wof o l d r ap i d c h a ng e of f u e l f l o w d ir ec t i o n, s m al l er
wa ter dr o p l ets a n d f i n er p ar t ic l es wi l l s e tt l e on t h e v a nes . T h es e
s et t lem en ts wi l l ag g lo m er ate an d wh e n h e a v y e n o u g h f a l l t o th e
bo tt om of t h e b o wl . A lr ea d y a t th is p o i nt t he m aj or p or t i o n of an y
c on t am in at es i n th e f u e l ha v e b e en s e p ar at e d.
St ag e 5.
G r av it y an d w at e r s e p a rat io n
J us t b e l o w t he f i l ter el em ent t h e f l o w ar ea of t he f i l ter is i nc r e as ed
s i gn if ic a nt l y t hus r ed u c i ng t h e f u e l f lo w r a te . T his c a lm i ng ef f ec t
a ll o ws e ve n s m al le r w at er dr o pl e ts an d p ar ti c u la te t o f a ll ou t s et t l i ng
on t h e i nn er s ur f ac es of t h e ho us i ng , f o r m in g l ar g er d r o p le ts wh ic h
e ve n tu a l l y f a l l i nt o t h e b ot t om of t he b o wl b y gr a v it y. Du e t o th e
pr e v i o us pr e- s e p ar at i o n pr oc es s , th e m aj or p or t i on of wat er a n d
par t ic u l a te pr es en t i n t he f u e l wi l l b e i n t he b o wl or o n t h e i nn er
s ur f ac es of t h e f i l te r , t hus gr e at l y e x t en d i ng th e f i lt er e lem e nt l if e .
St ag e 6.
El e men t st ra in i n g o f t h e f u el
T he f i n a l f i l tr at i on of t he r em ai ni n g wa t er a n d p ar t ic u la te s t i l l
c on t ai n ed in t h e f u e l w i l l be ef f ec te d b y a r ep l ac e a bl e f i lt er e l em ent .
T hes e f i lt er e l em en ts ar e pr o d uc e d f r om a s pec i a l f il t er m ed i a a nd
ar e a va i l ab l e i n d if f er e nt p or e s i ze s ( 1 0, 3 0 a nd 60 m ic r o n, wh er e 3 0
m ic r on is t h e s ta n da r d s u p pl i e d un i t) .
St ag e 7.
M ixin g an d o p t i mi sin g
T he f i n a l pr im ar y p r oc es s is t he m ix i n g a nd op t im is i n g of t h e f u e l.
Her e t he c le a ne d f ue l is pr oc es s e d t o ens ur e i t is r e t ur n e d to t h e
ta nk i n o pt im um c on d it i on . T h is pr oc es s a ls o ac ts as a pum p in g
s ta t io n t o a ll o w th e u n it t o s e lf - pr o pe l t h e f u e l bac k in t o th e s t or a g e
ta nk .
F u e l r et u rn ed t o t an k
Af t er th e f ue l h as b e e n p ol is h ed , i t is r e tur n ed t o t he t a nk . T his c o nt i nu o us pr oc es s
ens ur es th a t a l l th e f u e l wi l l b e o pt im is e d , k ee p i ng t h e s up p l y c l e a n a nd r e a d y f or us e .
Mo r e o v er th is pr oc es s a v o ids t h e ex pe n d it ur e of a r ep l ac em ent t a n k of f ue l or p ot e nt i a l l y
ex p e ns i ve e n g in e r e p a ir s .
Fuel Polishing System Overview
0108
Diesel engines and generators depend on two vital ingredients: air
with sufficient oxygen content – and clean, uncontaminated fuel. The
first is a given. The second is not.
Today’s ‘middle distillate’ fuels, including modern low sulphur diesel
are inherently unstable, which is why fuel companies only guarantee
their fuel to remain within the original specification for six months.
Fuel in poor condition can cause unreliability, loss of performance,
and expensive damage to today’s sophisticated diesel fuel injection
systems.
Traditionally, engines and generators rely on filter/separators to remove water and contaminants en route
from tank to engine. However these are prone to blockage when trouble strikes, staving the system of fuel
and shutting it down. Better to ensure the fuel in the tank is kept in pristine condition at all times, thus
preventing any fuel starvation issues. This is exactly the function the Fuel Polishing Systems from Separ UK
perform.
The FPS combines such specialised fuel processing equipment as a high quality filter/separator to catch
water and dirt and fuel conditioner to break down any unstable semisolids. Full technical specifications are
available on the Separ UK website, or by contacting Separ directly.
The units can be tank/wall mounted or are available as portable system, and can be set to run periodically
for via a simple mechanical or programmable digital timer. The systems collect fuel from the bottom of the
tank, condition it, and return it back to the top of the original tank, furthermost from the pick up point.
In the case of filter blockage or other failure, power is automatically switched off and an audio/visual alarm
advises you to conduct a simple service before reactivating the unit.
Separ fuel polishing systems give confidence that your fuel is always in perfect condition, totally eliminating
one of the most common causes of engine and generator failure and unreliability.
DC versions
FPS-80-12vdc
FPS-80-24vdc
FPS-150-12vdc
FPS-150-24vdc
12v fuel polishing system, 300 litres / hour
24v fuel polishing system, 300 litres / hour
12v fuel polishing system, 560 litres / hour
24v fuel polishing system, 560 litres / hour
AC versions
FPS-210-110vac
FPS-210-220vac
FPS-600i-220vac
FPS-2000i-220vac
110v fuel polishing system, 60Hz 800 litres / hour
220v fuel polishing system, 50Hz / 60Hz up to 800 litres / hour
220v industrial protection FPS - variable speed up to 2300 litres / hour
220v industrial protection FPS - variable speed up to 7800 litres / hour
Portable versions
FPSP-150-24vdc
FPSP-210-220vac
FPSP-210-110vac
FPSP-600-220vac
FPSP-600-110vac
24v DC portable fuel polishing system, 560 litres / hour
220v portable fuel polishing system, 50/60Hz up to 800 litres / hour
110v portable fuel polishing system, 60Hz 800 litres / hour
220v portable fuel polishing system, 50/60Hz up to 2300 litres / hour
110v portable fuel polishing system, 60Hz up to 2300 litres / hour
Other models are available in the range. Please ask for details
FPS-2000 (2000-7800lit/hr)
FPS-600 (700-2300lit/hr)
FPS-210 (500-800lit/hr)
Flow
FPS-150 (200-550lit/hr)
FPS-80 (0-300lit/hr)
Speed / Power
Thinking Centrifuges? Think Separ Fuel Polishing Systems
The Fuel Polishing System (FPS) is a new development in marine fuel cleaning equipment.
Where a centrifuge is designed purely to remove water and solids from fuel, a FPS will
condition and pre-clean the fuel, whilst ensuring removal of water, bacterial infection,
sludge, solids, sediment and other contaminate. Moreover when installed in the ‘offline’
configuration, it can independently process and clean your fuel even if the vessel isn’t
running.
It is designed for marine applications where either the cost or space to install a centrifugal
system is not a viable option, or where a simple to operate system is required.
The FPS can act as a fuel transfer and cleaning
system - transferring fuel from bunker to day
service tanks. Alternatively it can independently
clean either the main fuel or day tanks.
One of the main benefits is its simplicity and the
fact that it can be mounted on the side of a fuel
tank or bulk head. Once the system is installed, it is
simply a matter of either switching on or setting the
timer for the desired running period, then walk
away.
The FPS is electronically monitored via a vacuum sensor, meaning in the event of
contamination starting to block the filter element, the system will automatically switch off
and an indicator lamp will show that an element change is required. Separated water is
also monitored with an indicator lamp advising water drain off. It’s the easiest fuel
cleaning system to operate and maintain on the market today.
Pre-cleaning your diesel not only makes good economic sense, but can prevent
contamination from reaching your fuel system thus becoming a serious and potentially
expensive problem.
The Fuel Polishing System range from Separ UK consists of
small, economic and easy to operate units. A typical
example not only highlights a large weight and space
saving, but also gave a system that was as simple to
operate as switching it on. Most importantly, it is quarter the
price of an equivalent centrifuge. The range can handle flow
rates up to 2300 litres per hour and are available in both DC
and AC voltage configurations.
So why use a centrifuge? When you consider they are expensive to purchase, difficult to
operate and generally large pieces of equipment, it’s hard to justify.
Still thinking about centrifuges? Talk to Separ.
(ISO 9001: 2000)
0107