VDR / MARIKO
Workshop ‘SECA - Compliance’
November 3th - 4th, 2014
GUIDO G. CECCHERELLI
Vice President
Business Development
ADVANCED EGC SYSTEMS
CATALYTIC DRY FILTER
and
DeSOx TOWER
GUIDO G. CECCHERELLI
Vice President
Business Development
ECOSPRAY PORTFOLIO
AIR QUALITY IS OUR MISSION
Ecospray Technologies specializes in the research & development, design and
marketing of innovative technologies and systems for gas cleaning (DeNOx,
DeSOx, Heavy metals / Particle / Soot Removal) as well as gas cooling.
ECO-EGC is a multi-pollution Exhaust Gas Cleaning system proprietary of
Ecospray which allows ship-owners to fully comply with the increasingly strict IMO
regulations in terms of SOx, particulate
and NOx emissions in ECA’s, while
they can continue to use low cost HFO
(Heavy Fuel Oil) instead of the more
expensive MGO (Marine Gas Oil).
In addition, Ecospray’s systems result
in no polluting discharges into the sea,
so as to minimize the environmental
footprint and impacts of navigation in
ports and coastal areas.
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.
ECO-DeSOx TOWER ARRIVES IN YARD (12 MW ENGINE)
ECOSPRAY PORTFOLIO: ECO-EGC SYSTEMS
The unique Ecospray ECO-EGC solution comprises the pretreatment of the
exhaust gas through a patented Catalytic Dry Filter (CDF) and/or a Catalytic
Oxidation Reactor (CatOx) installed upstream of the DeSOx tower (wet
scrubber), i.e. before the economizer in case of its presence.
The composition of the above catalysts has been specifically developed for
treating exhaust gas with high sulphur content. A further advantage of these
catalysts is their very low oxidation activity from SO2 into SO3 whose
contribution helps to avoid aerosol plume at the funnel and additional sulfate
particle matter.
The primary features of this Ecospray technology
consist of:
• Particulate removal (elemental carbon, sulphates
and ashes)
• Continuous soot combustion
• Uncombusted hydrocarbon oxidation
• CO reduction
Downstream the Catalytic Dry Filter / Oxidation
Catalyst Reactor, the exhaust gas enters into the
ECO-SOx Open Loop Tower.
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.
ECOSPRAY PORTFOLIO: ECO-EGC SYSTEMS
Reliable
About 40 systems
November 2014)
successfully
installed
(updated
Adaptable and flexible
For both new builds and retrofit of cruise ships, ferries,
cargo
Unique technology
Using a proprietary system, that combines a Catalytic Dry
Filter with a DeSOx tower
Low installation/operating cost
Replacing the existing silencer do not require funnel
Modification and still allows the use of HFO instead of MGO
Compact design
Because replacing the existing silencer
High efficiency
Ecospray performances always meet/often exceed
IMO requirements
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.
ECO-EGC SYSTEM - OPEN LOOP OPTION
ECO-EGC SYSTEM OPEN LOOP
COMPONENTS
1.
2.
3.
4.
5.
6.
DIESEL ENGINE
COMBINED CDF / DIESEL OXI-CAT
ECONOMIZER
DeSOx TOWER
STATIC MIXER
PUMPS
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.
ECO-EGC SYSTEM - OPEN LOOP OPTION
 ECO-SOx Open Loop Towers use
seawater only, exploiting at the
maximum extent its intrinsic alkalinity to
neutralize the SO2 contained in the
exhaust gas
 Excellent SO2 removal at both low and
high engine loads thanks to the
installation of a proprietary and very
specific configuration of the ECO-SOx
Tower (sieve tray stage + spray nozzles
banks)
 The EGC system can operate either in
Open Loop or in Dry condition
 A proprietary centrifugal demister is
installed in the top part of the DeSOx
tower. Demister’s main features:
• is practically clogging free
• reduces drastically maintenance and
cleaning.
• virtually no seawater carryover
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.
ECO-EGC SYSTEM - HYBRID OPTION
ECO-EGC SYSTEM HYBRID
COMPONENTS
1. DIESEL ENGINE
2. ECONOMIZER
3. MKW PARTICLE FILTER
4. DeSOx TOWER
5. HEAT EXCHANGER
6. MKW RECIRCULATION TANK
7. SLUDGE TANK
8. STATIC MIXER
9. PUMPS
10. SODIUM CARBONATE / HYDROXIDE
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.
ECO-EGC SYSTEM - HYBRID OPTION
ECO-SOx Hybrid type consists of a dual stage tower. In Open Loop mode the
first stage of the tower (named MKW) operates as a “Wet filter” to remove
particle matters spraying only fresh water.
The second stage continues to work for removing the SO2 using only seawater
injection. The small sludge quantity discharged from the first stage of the tower
can be either stored, and then disposed at the most suitable opportunity /
location, or treated on board.
In Closed Loop mode, the gas flow is treated only in the first stage named
MKW (wet filter), while the second one operates dry. The SO2 is removed
through the injection of a sodium carbonate or NaOH solution which maintains
sufficient alkalinity in the recirculating stream of the liquids to allow a optimum
DeSOx performance.
Conductivity, density and pH of the recirculation flow are the parameters that
control the injection. In Closed Loop mode the blow-down from the MKW wet
filter can be treated either on board by an appropriate wash-water treatment
system or stored for future disposal.
The recirculation liquid is cooled down in order to reduce the exit gas
temperature and avoid white plume at the funnel as well.
Also Ecospray Hybrid EGC system is designed to replace the existing silencer.
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.
ECOSPRAY PORTFOLIO: DeNOx SOLUTIONS
Ecospray has already installed over one hundred ECO-NOx systems for the
abatement of NO2 in many land applicazions including energy production (coal and
biomass boilers, gas turbines, diesel generators), cement, steel and metals
foundries, chemicals plants, as well as in waste incinerators.
Ecospray’s catalytic ECO-NOx systems use SCR (Selective Catalytic Reduction)
technology to remove nitrogen oxides up to 98% (T optimum > 300 °C).
Ecospray has recently introduced ECO-NOx, either alone or in combination with
ECO-EGC system, for the treatment of exhaust gas of large marine diesel engines.
NOx reduction process usually begins b
y injecting downstream each gas turbine
a 33% urea solution into the gas flow.
Ecospray uses proprietary lances and
nozzles to obtain a very fine spray that all
ows to reach the most complete and unif
orm mixing between gas and NH3.
The gas + reagent mix passes through a
variable number of catalyst layers whose
amount and positioning depends on the
targeted DeNOx and on the maximum
permissible ammonia slip.
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.
ECOSPRAY REFERENCES
ECO-EGC
SYSTEMS
INSTALLE
D
IN
SERVICE
RETROFIT
6 SHIPS
12 EGCS
6 SHIPS
20 EGCS
12 SHIPS
32 EGCS
23 SHIPS
70 EGCS
2 SHIPS
4 EGCS +
1 SHIPS
1 EGCS
3 SHIPS
5 EGCS
4 SHIPS
11 EGCS
NEW
BUILD
DeNOx
TOTAL
ON ORDER
03.11.2014
65% OF THE INSTALLATIONS/ORDERS ARE CRUISE SHIPS, 30% FERRIES AND 5% TAN
KERS
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.
ECO-EGC SYSTEM: ECOSPRAY RETROFIT
PROJECT
Space restrictions are fairly solved
thanks to the very compact design of EcoDeSOx sea water scrubber.
The
excellent
noise
attenuation
capability of DeSOx tower allows to
remove the existing silencer and to be
installed in the same position and space.
Very often it is also possible to use the
same supporting structures of the
silencer in order to minimize modification
on board.
The above solution results in shorter time
and cheaper cost of installation.
Integrated exhaust fan can be provided
according to the maximum back pressure
required by the diesel engine.
The DeSOx tower weight is similar to the
silencer one, thus very limited or no
additional weight has to be considered in
the ship stability study.
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.
SILENCER REMOVED
WAITING FOR THE SCRUBBER
SCRUBBER REPLACED
THE SILENCER
ECO-EGC SYSTEM: ECOSPRAY RETROFIT
PROJECT
PRELIMINARY INSTALLATION STUDY
ECO-DeSOx SCRUBBER DURING ERECTION
IN DRY DOC YARD
LASER SCANNING
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.
ECO-EGC SYSTEM: ECOSPRAY RETROFIT
PROJECT
# 2 ECO-EGC SYSTEMS FOR AIDA LUNA DG 1 AND DG 2 ENGINES, EACH 9 MW
Retrofit
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.
Thanks for your attention!
Vielen Dank für Ihre Aufmerksamkeit!
Arrivederci
FÜR WEITERE INFORMAZIONEN :
[email protected]
[email protected]
ECOSPRAY TECHNOLOGIES
Via Circonvallazione, 14
15050 Alzano Scrivia - AL - Italy
Tel +39 0131 854611
Fax +39 0131 854617
www.ecospray.eu
All rights reserved © Copyright 2014 Ecospray Technologies S.r.l.