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Careclean Voyage
Highly concentrated emulsifying cleaner for removing heavy crude oil, asphalt and carbon black stains
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Careclean Voyage is a highly concentrated blend of aromatic solvents emulsifiers and non-ionic and anionic surfactants. Careclean Voyage is used for removing heavy crude oil, asphalt and carbon black stains, by direct injection, "Voyage method", spraying and/or recirculation.
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- Highly concentrated
- Non caustic
- Safe on most common metals
- Applicable at low temperatures
- Safe on:
- Most common metals
- Zinc, epoxy and polyurethane coatings
- Approved by:
- IMO
- Marinfloc
- Coating Manufacturers
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Tanks
Careclean Voyage can be used for the removal of most mineral oils and fats in cargo and storage tanks.
Double Bottom Tanks
Careclean Voyage can be used for cleaning and gas freeing of double bottom tanks, using the rolling motion of the ship which normally provides sufficient agitation.
Cleaning of cargo and storage tanks
Prewash
Before cleaning with Careclean Voyage, it is recommended to prewash tanks with hot water of approximately 50 °C, except for crude oil, drying and semi‑drying oils where a prewash with cold water should be applied.
Direct Injection Method For Cargo Tanks
Undiluted Careclean Voyage should be injected at a predetermined rate into the pressure side of the automatic tank cleaning system line on deck, by means of an air operated drum pump. Usually an injection rate of 0.1 - 0.2 % of Careclean Voyage is sufficient. Cleaning time 2-6 hours. Subsequently rinse with water.
Hand Spraying Method
Spray undiluted Careclean Voyage directly on to bulkheads, frames, stringers etc. using an air operated drum pump complete with a discharge hose and a hand spray gun. After a pre-determined reaction time, tanks should be rinsed with water using the automatic tank washing machines. For spot cleaning only use a hose for rinsing, for example a fire hose with nozzle. Hand spraying method is the most economical way in terms of chemical consumption but requires tanks being gas-free, enabling men to enter tanks. However, hand spraying method has a practical time limitation depending on tank sizes, i.e. total tank surface to be sprayed.
Recirculation method
A chemical solution is prepared in one of the after tanks near the pump room and is circulated by the automatic tank washing system's pump and heater to the tank to the cleaned. The solution is returned to the chemical solution tank via the stripping line. Usually it is not possible to recirculate solution over the tank washing system's heater (to maintain solution temperature) without making a temporary connection between the chemical solution tank and the tank washing pump.
The capacities of the solution tank, pipelines and pumps etc. should be calculated carefully, to ensure sufficient volumetric quantity for a continuous recirculation. Depending on the size and the condition of the tanks to be cleaned and quantity of chemical solution, usually up to three tanks can be cleaned with one solution. To continue cleaning of other tanks a fresh solutions has to be prepared.
Careclean Voyage is circulated in a 2 - 6 % solution in seawater.
After chemical cleaning the tanks should be rinsed thoroughly with seawater or fresh water, depending on availability and requirements.
Voyage Cleaning Method: (Double Bottom Tanks)
Tank
Time, temperature and agitation of chemical solution are important factors for the successful cleaning of Double Bottom.
Note
If the tanks are not severely contaminated and/or the fuel-oil viscosity is lower than 180 cSt at 50 °C the cleaning process should be in one stage using step 5 - 10 only.
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Heat the tank to a higher than normal temperature, pump out as much fuel as possible and trim the vessel to ensure complete stripping.
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Close all valves on the engine room manifold.
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Introduce the first dose of Careclean Voyage, through the sounding pipe, in accordance with the dosage table stated below and fill the tank to 25 % of its capacity with sea water. For filling the tanks it is to be advised, not to use the ballast lines, as they may contain fuel-oil making the cleaning more difficult.
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Heat the cleaning solution to a minimum of 60 °C and maintain this temperature for 48 hours. If heating coils are not available, live steam may be used for heating the solution and maintain the temperature.
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Empty the tanks completely, fill to 50 % capacity and empty again. Where single stage cleaning is used the previous steps are ignored.
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Add a second dose of Careclean Voyage and fill the tank with sea water to 50 % of its capacity, continue heating and maintain at this level for 48 hours.
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Add further sea water to fill the tank to 75 % capacity, continue heating and maintain for another 48 hours.
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Empty the tanks and pressure rinse with clean water through the sounding pipes for 1 - 2 hours under continuous stripping. The pressure should be kept as high as safety permits.
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When rinsing is completed stop the discharge (stripping) pump and fill the tank until clear water runs from sounding pipes on deck.
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Stop the water supply and empty (strip) the tank. Trim the vessel to ensure complete stripping.
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Dosage summary Method Dosage Direct Injection 0,1 - 0,2 % Recirculation 2 - 6 % Hand spraying undiluted Voyage Cleaning Method see dosing table Dosage of Careclean Voyage in liters per tank Tank capacity in tons Dosage of Careclean Voyage in liters per tank Minimum Normal Maximum 2-5 2 4 6 5 4 8 12 10 8 16 24 15 12 24 36 20 16 32 48 25 20 40 60 30 24 48 72 40 32 64 96 50 40 80 120 75 60 120 180 100 80 160 240 200 160 320 480 250 200 400 600 300 240 480 720 400 320 640 960 500 400 800 1200 600 480 960 1440 700 560 1120 1680 800 640 1280 1920 900 720 1440 2160 -
Property Value Article number 14607 / 16607 pH Not applicable Density 0,88 g/cm3 Flashpoint Not applicable Physical state Liquid -
- IMO approved in accordance with MEPC 590 Guidelines
- Marinfloc Approved OWS Compatible
- Major coating manufacturers. Deviations in temperature, exposure time and concentration to the above stated can vary per coating type, consult the coating manufacturers user guidelines.
For detailed information on safety and health, please refer to the Material Safety Data Sheet MSDS and/or product label.
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