FUELCARE

‘DIESEL BUG’ & MARPOL ANNEX VI

Monaco Yacht Show 24th September 2015

1. Fuelcare & MBC (3 slides)

2. MBC: Sampling, Testing & Treating (8 slides)

3. MARPOL Annex VI (8 slides)

4. Dr. Angus Webb (7 slides)

Today’s Talk

Fuelcare:

Who we are M.B.C.

Fuelcare & MBC

Fuelcare & MBC

Fuelcare & MBC

Fuel

Water

Microbial Sludges

Fuel/Water Interface

Microbial Sludges Microbial Sludges

SRB’s - Sulphate Reducing Bacteria

MBC on Superyachts:

Sampling Testing

Treating

Sampling for MBC

• Sampling is not an exact science and often difficult, particularly in the marine environment.

• MBC is usually found in tank bottoms and low points, as well as the fuel/water interface.

• Sample in different places depending on the operation:

- For regular storage tank testing (day/service tanks, lifeboat tanks) use a tank drain/dewatering point but only AFTER freshly delivered fuel has settled.

- For delivered fuel use the fuel line to & from day/service tanks or retained bunker samples.

Sampling for MBC

• Always use pre-labelled STERILE sample pots.

• Label should show tank name, date, vessel name, sampling point.

• Ensure correct PPE is work in accordance with local safety rules/diesel MSDS.

• Ensure sample pot is opened & closed as quickly as possible reducing the likelihood of external contamination.

• Any bottom sampling devices should be cleaned with isopropyl alcohol & left for 30 minutes prior to sampling.

Testing MBC

• Visual analysis of samples, your bunker lines, bunker suppliers’ lines and any endoscopy of tanks can show if MBC is present.

• Look for presence of discoloured water (brown of black), translucent slimes, soft brown sludge in fuel, water of tank bottoms.

• Slimes can appear on tank walls and are an indicator of a more serious problem on tank bottoms.

• Test pH of water in tanks (5 or lower) - acidity indicates probably microbial activity.

Testing MBC

• When using a test our advice is to only use growth medium tests as opposed to ‘instant’ tests. Fuelcare can provide these.

• Instant tests are prone to false positive results - by using an ATP marker in bacteria they try to detect microbial activity similar to the way pregnancy tests work.

• Growth medium tests work by catalysing growth of microbes and highlighting results as ‘CFU’s’ - Colony Forming Units.

• They are slower, but far more accurate. A slow results is always better than an inaccurate one.

• Good test kits will be IP rated - they will be internationally recognised by independent bodies.

Treating MBC

No Water = No ‘Bug’

Treating MBC: KathonTM FP 1.5

Used to cure an existing problem (curative) or prevent an expected one (preventative).

Extremely safe & approved by nearly every major OEM (MTU/Cummins) - extensive no harm tests performed. 20 years experience, with 0 failures.

99.9% neutralisation of microbial fuel contamination.

Highly effective in biodiesel B1 - 100.

Rapid 6 hour contact time.

‘Diesel Bug’ Example

MARPOL Annex VI:

Engineers’ & Captains Responsibilities Best Practice

MARPOL Annex VI

Marine fuels are divided into three distinct groups: • H.F.O./I.F.O. - Heavy/Intermediate Fuel Oils

sometimes known as ‘Residual fuels’ or under ISO8217 (Residual).

• M.G.O. - Marine Gas Oil sometimes known as ‘Distillate fuels’ or under I.S.O. 8217 (Distillate).

• Road Diesel - Chemically, a variation of

Marine Gas Oil or under E.N.590.

Crude

LPG

Petrol

Naptha

Kerosene

Gas Oil

Waxes

Residuals

Vapours

Liquids

MARPOL Annex VI

• MARPOL Annex VI aims to reduce emissions by reducing the Sulphur content in marine fuels. • As of January 2015, the limit of Sulphur in any marine fuel should be 0.1% by mass (previously

4.5%). • The limits only pertain to E.C.A.’s (Emission Control Areas). Outside of E.C.A.’s the limits are

currently 3.5% but will be 0.5% by January 2020. • It is the engineers’ & captains’ responsibility to ensure fuel taken on board meets these limits

and other fuels are not mixed with E.C.A. compliant fuels. Emergency engines are exempt.

Current E.C.A. Future E.C.A.

Effects of MARPOL Annex VI

• Sulphur inhibits microbial growth in fuel. The less Sulphur present, the more likely growth to be seen in coming years. This leads to filter blockages (leading to fuel starvation & engine shutdown), fuel pump failure, tank & line corrosion.

• Reduced fuel stability leading to further tank sludge and fuel discolouration (long chain hydrocarbons / asphaltenes) - see examples at front.

• Vastly reduced lubricity leading to possibly pump system failure & other issues. Processing to remove Sulphur removes other components with natural lubricity.

• Combustion efficiency. A reduction in economy.

Effects of MARPOL Annex VI

Pre-combustion Combustion Post-combustion

More sludge / less fuel Dirtier Tanks

Dirtier Separators Less safe changeovers

(temp)

Poorer combustion Poorer atomisation Reduced economy

Poorer slow steaming Reduced reliability Injector deposition

Piston & ring deposition Dirtier vales

Dirtier turbocharger Cold corrosion Hot corrosion

Advice for Superyacht Engines & MARPOL Annex VI

• When refuelling Superyachts you should always be taking onboard I.S.O. 8217 (Distillate).

• On occasion, fuel suppliers may provide E.N. 590 against S.O.L.A.S. rules. Do NOT take this onboard.

• If offered bio-derived fuels do not take them onboard particularly for emergency applications.

• Buy from a reputable source and ensure documentation is in order.

• Ensure a Bunker Delivery Note is supplied & retained for 3 years (proof of MARPOL compliance).

• SAMPLE! If possible continuously during delivery, otherwise from the truck or barge.

• I.M.O. guidelines recommend 2 x 400ml samples, sealed & labelled (1 x onboard, 1 x lab).

Advice for Superyacht Engines & MARPOL Annex VI

• Despite these precautions, issues in storing, handling and combusting fuel onboard remain.

• Fuelcare offer a solution using OctamarTM additive technology alongside our dosing systems.

• This is the only additive EVER used & approved by Lloyds Register.

• Improvements to Oxidation Stability, (ISO 12205) Thermal Stability, (ASTM D6468) Injector Fouling (CEC F2301), Steel Corrosion (ASTM D665A/B), Fuel Lubricity (HFRR ISO 12156), Filter Blocking Tendency (IP387).

Advice for Superyacht Engines & MARPOL Annex VI

Octamar will help recover lost fuel economy. There is significant cynicism in all markets against any fuel additives claiming to improve fuel economy: • Fuelcare only claim recovering lost economy (keep engines clean/clean up). • Extensive lab testing & approvals by some of the largest companies in the

world. • Lloyds Register approved (the only one). • Fuel Economy trials performed in conjunction with Dr. Angus Webb using

onboard telematics systems (if available).

MARPOL / IMO - International Maritime Organisation - http://www.imo.org/OurWork/Environment/PollutionPrevention/AirPollution/Pages/Sulphur-oxides-(SOx)-–-Regulation-14.aspx

Maritime UK - http://www.maritimeuk.org/2012/01/marine-fuel-sulphur-content/

MICROBIAL ATTACK ON SHIPS AND THEIR EQUIPMENT (R. A. Stuart) - SEE FUELCARE for copies

IMarEST - http://www.imarest.org/policy-news/consulting-members/sulphur-emissions-from-shipping

Energy Institute - https://www.energyinst.org/documents/1319

Lloyds Register - http://www.lr.org/en/marine/index.aspx

DNV - https://www.dnvgl.com/news-events/news/preparing-low-sulphur-operation.aspx

Stena Line Sulphur Challenge 2015 - http://www.stenalinefreight.com/~/media/Files/Freight/Broschure/Sulphur%20Brochure%202014%20-%20Final%20online%20version.ashx

Further Reading

Thank you for your time. Questions?

www.fuelcare.com

oliver@fuelcare.com angus@dynamon.co.uk

+44 (0)1283 712263

‘Diesel Bug’ & MARPOL Annex VI