Scrubbers Closing the loop Partners Stena Lloyds Register
Scrubbers: Closing the loop Partners: Stena Lloyds Register IVL, Swedish Environmental Research Institute Wärtsilä Port of Harwich
Scubbers: Closing the loop Activity 1 and 2; Installation of closed loop scrubbers on Stena Britannica and Hollandica
Stena Scrubber Programe Vessel Name Scrubber type Remark Stena Transit Wärtsilä, Closed In operation (Stena Line) Stena Transporter Wärtsilä, Closed In operation (Stena Line) Stena Forerunner CR Ocean, Open In operation (Stena Ro. Ro) Stena Foreteller CR Ocean, Open In operation (Stena Ro. Ro) Stena Britannica Wärtsilä, Closed In operation (Stena Line) Stena Hollandica Wärtsilä, Closed In operation (Stena Line) Stena Scotia AEC, Closed To be installed (Stena Line) Stena Scandinavica CR Ocean, Closed Scrubber ordered (Stena Line)
Activity 3; Integrated Life Cycle Balance • The Activity includes: - Measurement campaigns; - Analysis of data and samples; - Life Cycle Assessment (LCA); - Cost Benefit Analysis (CBA); - Final analysis and report; Activity 4; Development of guidelines on ship and on shore • The Activity includes: – Assessment of Exhaust Gas Cleaning System´s (EGCS) waste composition; – Risk assessment of EGCS waste, including occupational health and safety risks of long term storage on-board and pollution risks; – Consideration of technologies to reduce waste production; – EGCS waste quantities expected to be produced under a range of scenarios; – Environmentally responsible waste processing techniques to reduce environmental impact.
Activity 5; Scrubber observatory platform • The objective is to allow interested stakeholders (manufacturers, ports, operators, etc. ) to share best practices and exchange information on the purchase, installation and operation of scrubbers. • Identify challenges hindering the uptake of scrubbers. • The overall scope of this platform is to ensure that ongoing initiatives on scrubbers share know-how and identify knowledge gaps.
Welcome to the “Scrubber Observatory Platform” An Exchange of Best Practice among scrubber technology stakeholders 12 October 2017 Morning Session 09: 00 Registration and Welcome, Per Stefenson, Stena Teknik 09: 30 Overall presentation of the Scrubbers: Closing the Loop Project, Per Stefenson, Stena Teknik 10: 00 Technical experience of the scrubber installation project, Björn Asplind, Stena Line 10: 30 -12: 00 Onboard visit, Stena Hollandica Workshop 13: 00 Results - exhaust gas measurements, Hulda Winnes, IVL Swedish Environmental Research Institute 13: 20 Presentation of scrubber waste management guidelines, Andy Wright, Lloyd’s Register 13: 40 Presentation of EU project: deployment of affordable scrubber retro fitting technology, Laura Langh, Langh Group 14: 00 Wider discussion on experience of scrubbers and Port Reception Facilities, Ron van Gelder, Port of Rotterdam 14: 30 Coffee 15: 00 Experiences from participants: Discussion on challenges and results emerging from Motorways of the Sea projects, manufacturers and shipowners’ experiences. All participants
Closed loop scrubber sludge Scrubber sludge from ship Mixing/Stabilisin g Incineration Cement Black carbon and heavy metal emissions are drastically decreased with Scrubbers. Closed loop offers environmental benefits. Soot amounting to Roughly 1% of fuel burnt can be recovered and disposed of/recycled in a responsible way by using closed loop scrubbers. Britannica Hollandica Transporter Transit 45 000 tonnes Fuel per Year 1% Collection of 450 tonnes black carbon emissions
Summary • Closed Loop Scrubbing enables better water cleaning. (Compared to open Loop. ) • Closed Loop Scrubbers do not contribute to the acidification of the sea. • Sulfur Oxides Emissions are removed well below regulatory limits. • The Scrubbers collect a significant amount of ”Black Carbon” that can be handled by state of the art processes on shore.
Technology is great but cost is always an incentive…
OPEX Closed Loop @ 2. 7% S in fuel Item Caustic consumption (EUR/ton HFO) Coagulant consumption (EUR/ton HFO) Floculant consumption (EUR/ton HFO) Sludge disposal (EUR/ton HFO) Scrubber energy cost (EUR/ton HFO)* EUR/mt HFO Caustic consumption (EUR/ton HFO) 23 6. 75 Coagulant consumption (EUR/ton HFO) 1, 25 0, 75 4, 2 6, 75 R&M depending on Scrubber supplier. Some EUR 100 000: per year expected Floculant consumption (EUR/ton HFO) 4. 2 0. 75 23 Sludge disposal (EUR/ton HFO) 1. 25 Scrubber energy cost (EUR/ton HFO) * Energy Cost Applicable for open & closed Loop
…but who knows where we are going? Forecast 2013
Closed loop scrubber Typical wet sludge 2% of Fuel burned Typical treatd wash water 0. 10. 2 m 3/MWh
Marine Environment Protection Committee –. 259(68) 2015 GUIDELINES FOR EXHAUST GAS CLEANING SYSTEMS MEPC. 259(68) Scheme A under which the SOx scrubber is subject to initial certification of SOx reduction performance followed by continuous monitoring of operating parameters and a daily spot check of emissions performance Scheme B in which there is no requirement for initial certification, but continuous emissions monitoring using an approved system and a daily spot check of operating parameters are required. Currently the EC only accepts continuous emissions monitoring and the US Coastguard also appears to be predisposed to continuous emissions monitoring. Therefore, for those ships that either currently trade into EU or US waters, or may do so in the future, Scheme B approval would appear to be the sensible option. Source: Lloyd’s Register
Stena Britannica & Hollandica • Built by Wadan yards, Wismar 2009 • Length over all 240 m • Beam 32 m • Dwt 11 600 tonnes • Main engines: – 2 x MAN 8 L 48/60 CR and – 2 x MAN 6 L 46/60 CR • Total MCR 33 600 k. W • Speed 22 knots • Pax: 1200 • Cabins 540 • 5 500 lane meters – (320 truck and trailers)
- Slides: 14
