GREEN SHIPPING SUMMIT 2015 ECO-EGC TM exhaust gas cleaning technology to comply with emission limits and shipowners operational needs 18 th September 2015 Palazzo San Giorgio, Genoa MAURIZIO ARCHETTI President & Chief Scientist
AIR QUALITY IS OUR MISSION ECOSPRAY develops, designs and markets innovative technologies for air and gas cleaning or gas cooling in many industrial applications & power generation plants. In the marine industry, Ecospray proposes ECO-EGC, a proprietary multi-pollution cleaning system, which allows shipowners to fully comply with IMO regulations in ECA s. ECO-EGC TM systems comprise the pre-treatment of the exhaust gas through a patented Catalytic Dry Filter ECO-CDF TM or ECO-DOC TM (Diesel Oxidative Catalyst reactor) installed downstream of the turbocharger. Further to the filter, the EGC system is completed with a DeSOx sea water tower specifically designed to remove SO2 with performance > 99%.
ECO-EGC TM TECHNOLOGY RELIABILITY Over 160 systems successfully installed (updated September 2015) ECO-EGC TM OPEN LOOP ADAPTABILITY and FLEXIBILITY For both new builds and retrofit of cruise ships, ferries, cargo, etc TECHNOLOGY UNIQUENESS Cleaning the exhaust gas from most of the pollutants according to a CDF or DOC before the DeSOx tower ECO-EGC TM HYBRID LOW INSTALLATION / OPERATING COSTS The quantity of seawater injected is controlled by engine loads and SO 2 removal performance at the funnel: this allows good energy saving The tower compact design allows to replace the existing silencer and does not require funnel modification Thanks to the in-line tower, the performances always meet IMO requirements and allow the use of HFO instead of MGO
ECO-EGC TM FAN OPEN LOOP TO THE FUNNEL SEAWATER FILTER FROM SEA CHEST BUFFERING PUMP DeSOx TOWER SEAWATER PUMP TO OVERBOARD CDF/DOC FILTER STATIC MIXER FROM THE TURBOCHARGER FROM SEA CHEST
ECO-EGC TM OPEN LOOP The DeSOx tower installed downstream of the CDF or DOC virtually reduces to zero the sulphure dioxide (SO 2 ) emissions at the funnel outlet and simultaneously ensures that ph, TURBIDITY and PAH in the wash water discharge fully comply with the IMO limits CDF or DOC ensures the removal at the funnel outlet of: SOOT, ASHES and HEAVY METALS (with CDF only) UNBURNED HYDROCARBONS and PAH (with DOC or CDF) CARBON MONOXIDE (with DOC or CDF)
ECO-EGC TM HYBRID OPTION CAUSTIC TANK REAGENT DeSOx TOWER HE DILUTION PUMP MAIN PUMP RECIRCULATION TANK WATER TREATMENT CDF/DOC FILTER SEAWATER FILTER SLUDGE TANK FROM THE TURBOCHARGER SEA CHEST HOLDING TANK STATIC MIXER OVERBOARD OVERBOARD
ECO-EGC TM HYBRID OPTION ECO-EGC Hybrid type consists of a DeSOx tower installed downstream the CDF or DOC. In OPEN LOOP mode the SO 2 is removed using seawater injection. In CLOSED LOOP mode the SO 2 is removed by reagent injection. The SO 2 is removed through the injection of fresh water added with NaCO 3 or NaOH to maintain sufficient alkalinity in the recirculating stream of the liquids and allows optimum DeSOx performance. Load / SO 2, density and ph of the recirculation flow are the parameters that control the injection. The recirculation liquid is cooled down to reduce the exit gas temperature and to avoid white plume at the funnel. Also Hybrid EGC system is designed to replace the existing silencer.
ECOSPRAY OPEN LOOP (ECO-EGC TM ) WITH CATALYTIC EXHAUST GAS PRE-TREATMENT (DOC or CDF) * CONVENTIONAL CLOSED LOOP or MGO OPERATION H x C y PAH SOOT * DIESEL OXYDATIVE CATALYST Reactor or CATALYTIC DRY FILTER
RETROFIT PROJECT The compact design of ECO-SOx scrubber allows to fairly solve space restriction The excellent noise attenuation of the DeSOx tower allows to replace the existing silencer in the same position and space; furthermore, the use of the silencer supporting structures minimizes on board modifications DeSOx tower weight is similar to the silencer one, thus very limited or no additional weight has to be considered. All a.m. features mean shorter time and lower installation costs. Moreover, an integrated exhaust fan can be provided according to the maximum back pressure required by diesel engine. SILENCER REMOVED WAITING FOR THE SCRUBBER SCRUBBER REPLACED THE SILENCER
CASE STUDY 1: DRY DOCK INSTALLATION # 2 ECO-EGC TM SYSTEMS FOR AIDA LUNA DG 1 AND DG 2 ENGINES, 9 MW EACH Retrofit
CASE STUDY 2: IN-SERVICE INSTALLATION # 3 ECO-EGC TM SYSTEMS OPEN LOOP FOR HAL ZUIDERDAM DG 1 AND DG 4, 11.52 MW EACH, DG 2 8.64 MW Retrofit
CASE STUDY: IN-SERVICE INSTALLATION SCRUBBER INSTALLATION WITH THE SHIP IN- SERVICE This tailor-made solution requires a special design, each single scrubber piece should be as small as possible and fabrication tolerances must be very tight. In about 3 weeks, a group of 4-6 installers can assemble all the scrubber parts with the ship inservice (# 8 installations already realized). ECO-SOx PANELED SCRUBBER DURING ONBOARD INSTALLATION ECO-SOx PANELED SCRUBBER STRUCTURAL CALCULATION ECO-SOx PANELED SCRUBBER BOTTOM PART
ECOSPRAY REFERENCES ECO-EGC TM SYSTEMS INSTALLED FLAG APPROVED TOTAL 15.09.2015 ON ORDER RETROFIT 30 SHIPS 94 EGCS 23 SHIPS 51 EGCS 53 SHIPS 145 EGCS 12 SHIPS 24 EGCS NEW BUILD 5 SHIPS 13 EGCS + (2 DeNOx) 1 SHIPS 2 EGCS 6 SHIPS 15 EGCS 2 SHIPS 4 EGCS 80% OF THE INSTALLATIONS/ORDERS ARE CRUISE SHIPS, 15% FERRIE S AND 5% TANKERS
Washwater lab analysis data campaign; comparisons with major standards VGP IMO/EU Baltic Alaska 2014 Venice Lagoon WFD Costa Fascinosa Carnival Elation PARAMETER Scrubber Wash-water Limits Scrubber Wash-water Limits MEPC.227(64) Annex 22 Effluent Standards Waste Water Discharge Limits Industrial Waste Water Discharge Limits AA-EQS Other Surface Waters Sample Date: March 23, 2015 Sample Date: January 18, 2015 Exhaust Gas Cleaning System: PARAMETERS SW Inlet SW Outlet SW Inlet SW Outlet PAH 50 µg/l 1 50 µg/l 1 Not Required Required Not Required Required Not Detected 5.43 µg/l Not Detected 2.8 µg/l ph > 6.0 2 Computer model 6.0-8.5 6.0-9.0 6.0-9.0 Not Required 8.1 6.1 8.2 6.3 Turbidity 25 FNU/25 NTU 25 FNU/25 NTU Not Required Not Required Not Required Not Required ** ** ** ** Nitrite 60 mg/l 3 Required Required as Sum of Total Nitrogen Required 5 0.3 mg/l Not Required Not Detected 0.07 mg/l Not Detected Not Detected Nitrate 60 mg/l 3 60 mg/l 4 Required as Sum of Total Nitrogen Required 5 Not Required Not Required Not Detected Not Detected Not Detected Not Detected Total Arsenic Required Required Not Required Required Not Required Not Required 3 µg/l 3 µg/l Not Detected Not Detected Total Cadmium Required Required Not Required Required Not Required 0.2 µg/l Not Detected Not Detected Not Detected Not Detected Total Chromium Required Required Not Required Required 100 µg/l Not Required 15 µg/l 13 µg/l Not Detected Not Detected Total Copper Required Required Not Required Required 50 µg/l Not Required 3 µg/l 9 µg/l 32.5 µg/l Not Detected Total Lead Required Required Not Required Required Not Required 1.3 µg/l Not Detected Not Detected Not Detected Not Detected Total Nickel Required Required Not Required Required 100 µg/l 8.6 µg/l Not Detected 17 µg/l Not Detected Not Detected Total Selenium Required Not Required Not Required Required 10 µg/l Not Required 3 µg/l 3 µg/l Not Detected Not Detected Total Thallium Required Not Required Not Required Required Not Required Not Required Not Detected Not Detected Not Detected Not Detected Total Vanadium Required Required Not Required Not Required 50 µg/l Not Required 4 µg/l 31 µg/l Not Detected Not Detected Total Zinc Required Required Not Required Required 250 µg/l Not Required 6 µg/l 16 µg/l Not Detected Not Detected Courtesy of Carnival Corporation
Discharge water quality, typical sample ; LEFT: sample from DeSOx Tower outlet (before dilution) RIGHT: sample from a drinking fountain Courtesy of Carnival Corporation
Carnival MIRACLE, sample Compliance Computer reports Courtesy of Carnival Corporation
Thanks for your attention ECOSPRAY TECHNOLOGIES S.r.l. VIA CIRCONVALLAZIONE, 14 15050 ALZANO SCRIVIA - AL - ITALY Tel +39 0131 854611 Fax +39 0131 854617 www.ecospray.eu