marpol annex vi tripartite tokyo 20th september 2007
TRANSCRIPT
MARPOL Annex VI
TRIPARTITE
TOKYO
20th SEPTEMBER 2007
IMO & UNILATERAL LEGISLATION ON LOW SULPHUR MARINE FUELS
DATE SHIP TYPE WHERE max. % S REG.
19.05.2005 All Everywhere 4.5 IMO
19.05.2006 All Baltic Sea 1.5 IMO & EU
11.08.2006 All All EU PortsMGO (DMA and DMX)MDO (DMB and DMC)
0.21.5
EU
11.08.2006 Passenger ships EU 1.5 EU
1.01.2007 All aux. & diesel-electric main engines on all ships
24 miles off California shoreMGO (DMA grade)MDO (DMB grade)
-0.5
CARB
11.08.2007 All North Sea & English Channel 1.5 EU
22.11.2007 All North Sea & English Channel 1.5 IMO
1.01.2010 All All EU ports 0.1 EU
1.01.2010 Inland waterway ships All EU inland waterways 0.1 EU
1.01.2010 All aux. & diesel-electric main engines on all ships
24 miles off California shoreMGO (DMA grade) 0.1
CARB
1.01.2012 16 Greek ferries Greek ports 0.1 EU
ALTERNATIVES on SOx & PM
• A. Base Line - No change in SOx regulations• B. Global + Regional (SECA) + port (mini
SECAs) different S cap values:– (possible lower) Global S cap & lower S cap in
SECAs
– USA – [0.1%] S cap up to [200] nm from shore– BIMCO proposal – 3% global S cap; 1% 0.5% MDO
in SECAs or scrubbers
• C. GLOBAL S CAP (no SECA) :– Mandate 1% 0.5% MDO for all ships– Global S cap or emissions limit but leave the
industry to choose compliance method
EXPERIENCE WITH SECA
• So far, complinace by LSFO
• Switch from HFO to LSFO depends on the ship’s bunker storage capacity and lay-out
• Standard designs (1 settling & 1 service tanks) provide little flexibility
• Depending on initial S % of the HFO, fuel switch in at least 48 hrs
• 60 hours from HFO with 4.04% S to LSFO with 1.3% S
SWITCH SEQUENCE IN BASIC DESINGS
• Stop HFO transfer from storage to settling tanks (1 to 3 days prior to entry into SECA)
• Settling tank empty – start transfer of LSFO to the settling tank
• Service tanks almost empty of HFO – start feeding LSFO from settling tank (some 6 hours before entry into SECA)
• Cylinder oil feeding rate adjusted or switch to a lower BN cylinder oil
• Continuous crew attendance/monitoring
Wärtsila – Low Sulphur Guidelines, 9 January 2006
FUEL SWITCH OVERBETTER SOLUTIONS
• Simpler for ships with 2 settling & 2 service tanks (few hours)
• Complete segregation between HFO & LSFO systems reduces the fuel switch over to matter of minutes and permits automatic control
• Complete segregation = no risk of incompatibility between HFO & LSFO blends
Wärtsila – Low Sulphur Guidelines, 9 January 2006
SECAs & CHANGE OVER AREAS
AUGUST 2007
MAY2006
Source: http://maps.google.com/
ChangeoverArea
SECAs & CHANGE OVER AREAS
New Changeover Area
Source: http://maps.google.com/
2012?
2012? ??????
HOW MANY MORE SECAs?
IMPACT ON A LARGE NUMBER OF SHIPS
2012?
2012?
Wärtsila – Low Sulphur Guidelines, 9 January 2006
Wärtsila – Low Sulphur Guidelines, 9 January 2006
SCRUBBERS
- large space required in the ship’s funnel;
- for a main engine of 20 MW, sea water up to 22,000 t/day need to be processed (45t/hr/MW*)
- up to 100 kg/day of hazardous sludge (5kg/day/MW*)
Scrubbers for Pride of Kent
* data supplied by Krystallon
CONCLUSIONS
• Alternative solutions may require new installations and new operations
• Design standardisation for safe & simpler operation
• Expected contributions from:– Ship operators– Ship designers – Classification Soceities
• Future Tripartite cooperation