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Air Emissions from Ships

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Presentation on theme: "Air Emissions from Ships"— Presentation transcript:

1 Air Emissions from Ships

2 Governing Regulations
MARPOL Annex VI entered into effect in 2005 Baltic Sea - SECA from May 2006 North Sea - SECA in November  2007 Europe Sulphur Directive (1999 & Rev) governs inter alia emissions in port (0.1% S at berth) California (CARB) new regulations which take effect in 2007 Various ports are facing new local regulations on Ship Emissions, which are inhibiting future expansion/development  

3 Control of Air Pollution from Ships and its Current Revision process
MARPOL – Annex VI Control of Air Pollution from Ships and its Current Revision process

4 Air Emissions from Ships
Covered by Annex VI Oxides of Nitrogen (NOx) – create Ozone Sulphur Oxides (SOx) – create acidification Hydrocarbons (HC) – gas, soot and some particulates Volatile Organic Compounds (VOC) Refrigerant Gases Not covered (currently) by Annex VI Carbon Dioxide (CO2) Carbon Monoxide (CO) Engine exhaust gases are dependent upon engine type, engine settings and fuel type

5 The Regulations in Annex VI
There are 19 Regulations but the following Regulations impact Vessel operation : Regulation 12 – Ozone Depleting Substances Regulation 13 – NOx emissions Regulation 14 – Sulphur Oxide emissions Regulation 15 – VOC emissions Regulation 16 – Shipboard Incinerators Regulation 18 – Fuel Oil Quality control

6 IMO Annex VI revision process
MEPC 53 (July 2005) – Decided Annex VI be revised MEPC 54 (March 2006) – Proposals for revision. Delegated work to BLG Sub-Committee BLG 10 (April 2006) – Initial review of proposals and documents (over 30 documents) Two correspondence groups (April – October 2006) Intersessional Meeting (November ) – discussion of key issues and draft proposals BLG 11 (April 2007) – finalize draft proposals for revised Annex VI, the NOx Code and related Guidelines MEPC 56 (July 2007) & MEPC 57 (March 2008) - consider and approve(?) the revised texts Target date for Entry in to Force: 2010

7 Many proposals for significant amendments to Annex VI
Lower limits for SOx & NOx emissions SECAs with lower S cap (1% or 0.5%) NOx emission limitation on existing engines, particularly those installed after Jan. 2000 NECAs – NOx controlled areas Restriction on CO2 emissions Restriction on Particulate Matters (PM) emissions Restriction on VOC emissions from cargo oil tanks

8 INTERTANKO Process Reviews within ISTEC and Bunker sub-committee over many years – with new emphasis since 2005 Ongoing contacts with other stakeholders Reviewed with Executive Committee (June 2006) - basis emphasis on IMO Intersessional meeting in November - Decision that INTERTANKO should contribute actively to the revision process - Secretariat to develop a position paper for submission to IMO, in conjunction with ISTEC for technical and operational evaluation Reviewed draft submission with Executive Committee (September 2006) - Decision to support submission to Intersessional Informal discussion with RT since mid-year Joint reviews with INTERCARGO’s CASTEC Invitation to RT to co-sponsor submission immediately after agreed by Executive Committee

9 Guiding Principles Executive Committee (June 2006) – Approach to revision process prevent fragmented regulations promote establishment of a global standard for at sea, coastal and at berth operations (maybe no SECAs) international standards via IMO regulations based on a fuel standard rather than an emissions performance standard, and thus reduce the onus of responsibility on the owner/operator for verification and compliance (sympathy for use of clean fuels / distillates only)

10 Guiding Principles Executive Committee (June 2006) – Principles for an INTERTANKO position: ensure a solid platform of requirements be realistic and feasible seek a long term and positive reduction of air emissions from ships, and contribute to a long term and a predictable regulatory regime

11 Owners’ Concerns Multitude of differing requirements
Additional requirements for multi-fuel usage



14 Owners’ Concerns Multitude of differing requirements
Additional requirements for multi-fuel usage Availability of appropriate fuels Availability & reliability of fuel processing / emission equipment Additional costs / possible cost recovery mechanisms

15 Owners’ Concerns Multitude of differing requirements
Additional requirements for multi-fuel usage Availability of appropriate fuels Availability & reliability of fuel processing / emission equipment Additional costs / possible cost recovery mechanisms Onus of responsibility for verification and compliance

16 Owners’ Concerns Who bares responsibility for monitoring, verification and compliance ? Owner for: Combustion process Exhaust gas emission standards Disposal of by-products OR Fuel supplier for: Quality of fuel supplied

17 Alternative Approaches
Do nothing – retain HFO for deep sea Extend SECAs Global SECA Establish local SECAs Establish NECAs Use technological solutions – catalytic converters, scrubbers and/or filters Burn distillates close to shore Cold ironing Emissions trading

The use of distillate fuels, with a global S content cap introduced using a two tiered programme, as follows: from [2010], a maximum of 1.00% S content for ships’ engines installed on and after [2015], a maximum [0.50]% Sulphur content A Global Sulphur Emission Control Area If the above two issues were considered feasible, then the provisions for checking and monitoring compliance with Regulation 14 and 18 should be revised accordingly.

19 Objective of INTERTANKO submission
The main purpose of the INTERTANKO submission is to "present issues that merit further discussion by the IMO Working Group when considering the revision of Annex VI of MARPOL"   INTERTANKO believes that it is important that there is open debate at the international level on the subject of how best to meet rapidly changing expectations for lower ship emissions and that there should be full and frank discussion of the various solutions possible.

Future production of distillates & time frame Confirmation of switch-over implications Costs of engine conversions Net benefits Future costs of distillates

21 Alternative Approaches
ITEMS FOR DISCUSSION include: Future production of low sulphur fuels & time frame Proving of / reliability of SCR and scrubber technologies Costs of extra bunker tanks Costs of manifold modifications / sampling Costs of additional maintenance Means of disposing of wash water and scrubbed by-products Suitability of blended fuels Net benefits Future costs of low sulphur HFO/IFOs

22 Where to debate ? IMO Or Series of bilateral discussions
External forums with all stakeholders

reduces all types of air emissions from ships, including PM reduces the bunker consumption (by weight) by 5% to 10% eliminates the need of retrofitting of additional bunker storage capacity and associated piping eliminates current onboard fuel treatment plants and significantly reduces onboard generated ER waste and exposure of the engines to damaging materials

eliminates the need for scrubbers for the inert gas system no additional costs of installing, operating and, maintaining/repairing equipment for reducing PM and SOx emissions no potential losses due to delay in case of unexpected breakdown of onboard technology if no SECAs, no operational burdens for ships & no associated risks when changing fuel types, lube oils and settings for the ship’s engines

25 ONE Approach for CALIFORNIA
Environmental achievements 2006 Maersk Line announced a pilot environmental initiative that annually reduces vessel-related emissions from the company’s fleet that calls the ports of Los Angeles and Oakland, USA. Maersk Line has voluntarily switched to low-sulphur diesel on the main and auxiliary engines of its vessels when they are within 24 miles of the port and alongside. Maersk Line projects a 73% annual reduction in particulate matter and a 92% reduction in sulphur dioxide (SOx).

26 Further information

27 Regulation 14 - SOx The Worldwide Sulphur cap on fuel oil is set at 4.5%. Sulphur Emission Control areas (SECAs) Areas – Baltic, North Sea and English Channel Sulphur Level of fuel – 1.5% or; Alternatively use an exhaust gas cleaning system Ship must have cleared all pipe systems and tanks and be using low sulphur fuel on entry

28 Proposed Revisions of Regulation 14 - SOx
Reduction of SOx emissions Reduction of the Global Cap – e.g. to 3.00% Reduction of the SECA Cap – e.g. to 1.00% or 0.50% Correction for the reporting and measurement standard to two decimal places for Sulphur content (Bunker Delivery Note criterion).

29 Regulation 13 – NOx For all Engines (except emergency engines) installed on ships after 1st January 2000 of more than 130 kW must comply to this Regulation. The NOx emission is limited to 17 g/kW h for engines operating at 130 rpm but reducing to 9.8 g/kW h for 2000 rpm. Between these revs the limit is designated by equation: 45 * n(-0.2) g/kW h Existing engines can become a “new” engine if substantially modified.

30 Proposed Revisions of Regulation 13 - NOx
Tiered approach to further NOx reductions – Tier 2 from date of revisions coming into force , and Tier 3 from 2015 Lower limit NOx emissions ( % reduction discussed for first tier – 2010) Further NOx emission limitation on all existing engines, particularly those installed after Jan. 2000 NECAs – NOx emission control areas (Tier 3 levels for these areas?)

31 New Parameter for Air Pollution Control
Particulate Matter Emission control What are these Particulates? Sulphates from SOx Nitrates from NOx VOC from uncombusted hydrocarbons Heavy Metals e.g. Vanadium, Nickel, Aluminium, Sodium, Calcium, Zinc; from Heavy Fuel oil and Lube Oil Soot – from the aromatics in heavy fuel oil

32 Particulate Matter Regulation and Control Methods
At present this subject matter has not been fully debated within the working group Issues to be confronted: Size of the Particulate to be regulated – 10 micron or 2.5 micron Extent of limitation of Particulate emission Methods for control of Particulate emissions – e.g. Scrubbers and/or Filters Storage and Disposal of Particulates Control and verification of reduced emissions

33 Current Regulation 18 – Fuel Oil Quality
“Fuel oil shall be blends of hydrocarbons derived from petroleum refining” “Fuel oil shall be free from inorganic acid” “Fuel oil shall not include any added substance or chemical waste which either: Jeopardises the safety of ships or adversely affects the performance of the machinery, or Is harmful to personnel, or Contributes overall to additional air pollution”

34 Regulation 18 – Fuel Oil Quality
Bunker Delivery Note (BDN) Becomes a Statutory document Must be kept on board for 3 years for inspection and a copy taken for further examination. Must contain all data required by appendix V Name and IMO number of vessel Port Date of Commencement of delivery Details of fuel oil supplier Product name, quantity , Density at 15 0C and Sulphur content % m/m A declaration that fuel supplied meets Regulation 14 and 18.

35 Regulation 18 – Fuel Oil Quality
Fuel Oil Sampling A sealed sample meeting the requirements in associated guidelines has to given to the ship by the bunker supplier For each individual BDN a sample has to be taken at the vessel’s bunker receiving manifold. (see procedure in associated guidelines) The sample label has to be signed by both the bunker supplier’s representative and the vessel’s Chief Engineer. The sample size shall be not less than 400 mls The sample is not to be used for any commercial purpose The sample is to be retained on board for at least 1 year for inspection by PSC as required

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