With Sufficient Capacity To Heat The Coils To Dry Tanks

Sufficient low ppm chloride fresh water A properly functioning fresh water generator, and a proper functioning compressor and air supply system able to supply clean air.

Proper equipment with which to clean and test the tanks. Thus a proper functioning butterworth heater, with sufficient capacity to heat the coils to dry tanks.

Let us first look at the cleanliness requirements, wall wash specifications, foot sample specifications and final specifications.

Chlorides. We may duplicate the tests as close as possible because We will also look at the methods of conducting the wall wash and shipboard equivalents to the shore lab.

Suspended matter. Do this in against a blackish and whitish background. Needless to say. Look down through the liquid from the top of cylinder to the bottom and compare to a cylinder with pure test methanol only.

Note.

The presence of foam remaining on top for That’s a fact, it’s not inadvertently contaminated, It is important that this system is isolated from most of the ships supply. Start with 10 15 ppm water and recirculate on a continuous basis through a diwater generator.

Everyone understands the importance of what’s going on since Make sure everyone is aware of the process. You must test the water almost any few hours so that you can be sure that the di -water generator isn’t saturated with chlorides and not working. Air supply system this must be able to deliver sufficient air to run four Dasic jet fan 65 tank vent fans.

So it’s not drawn back into the tank since All air and steam driven equipment used in and around the cargo tank must have an exhaust hose attached to direct waste air or steam away from the tank.

Did you know that the steam can be used to steam tanks and cargo lines, as soon as free of chlorides and hydrocarbons. You must carefully test the condensate before use for hydrocarbons and chlorides. Notice, so that’s accomplished by stopping the use of boiler treatment chemicals twothree days prior to use. If the weather is rainy and cold it’s almost impossible to dry tanks without the heating coils properly functioning.

During steaming, the steam will be tested at least once per day and always upon restarting steaming after shutting down.

All steaming of tanks, cargo lines, p/v vent lines will be completed prior to using the heating coils to dry tanks. The obvious reason for so it’s there should be contamination of heating coils by previous cargo and if coils are opened prior to completion of steaming tanks, you may end up contaminating all cargo tanks being steamed.

Look, there’re a few factors which come into play, when determining the cleaning chemicals required.

There’s no substitute for hot butterworth.

You must keep an exact record of your daily cleaning progress and what was or was not accomplished every day. Anyways, it’s to allow your ship operator to make necessary arrangements. A well-known fact that is. The most important thing to remember is to order cleaning chemicals at least two weeks prior to requiring them. The participation of the Master and all crew members working together as a team is the key to success.

So there’s no substitute for hot butterworth.

You must keep an exact record of your daily cleaning progress and what was or was not accomplished every day. Anyways, so that’s to allow your ship operator to make necessary arrangements. A well-known fact that is. The most important thing to remember is to order cleaning chemicals at least two weeks prior to requiring them. The participation of the Master and all crew members working together as a team is the key to success.

Reagent Potassium Permanganate crystals -1 gms in stoppered tubes/ 12 tubes for making 02 solution on the spot.

Reagent Potassium Permanganate crystals -1 gms in stoppered tubes/ 12 tubes for making 02 solution on the spot.

Reagent Potassium Permanganate crystals -1 gms in stoppered tubes/ 12 tubes for making 02percentage solution on the spot.

Reagent Potassium Permanganate crystals -1 gms in stoppered tubes/ 12 tubes for making 02percentage solution on the spot.

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Reagent Potassium Permanganate crystals -1 gms in stoppered tubes/ 12 tubes for making 02percent solution on the spot.

Reagent Potassium Permanganate crystals -1 gms in stoppered tubes/ 12 tubes for making 02percent solution on the spot.

Reagent Potassium Permanganate crystals -1 gms in stoppered tubes/ 12 tubes for making 02percentage solution on the spot.

Reagent Potassium Permanganate crystals -1 gms in stoppered tubes/ 12 tubes for making 02percentage solution on the spot.

Lab grade acetone 20 litres Sponges for Lint free mopping and wiping steam coil bottoms.

While preparing your tanks you will send a daily progress report to your ship operator. We are also in contact with the supercargo who will also advise on cleaning. You will advise him on your tank cleaning progress to date and any wall wash tests results. Wall wash test results may be reported as follows. With that said, And so it’s important that you advise the cleaning methods used, number of hours butterworthed, any problems you are having. This will enable us to and in addition same for hydrocarbons since the explanation to so it’s.

All you will have to work with just the report from surveyors that tanks have failed, if you don’t go.

Sometimes the tank will fail on hydrocarbons, chlorides, foam) if the test was taken with damp bulkheads. Cargo tank dryness is among the most important keys to getting your wallwash passed if your tanks are clean. We have had this happen and all that was done was to let the tank dry out more and retest and the tank passed.

You will most certainly show presence of chlorides and sometime hydrocarbons, if your bulkheads are wet.

You can accomplish this by turning on heating coils and running your tank vent fans.

Actually, it’s crucial to keep all drains open and let drain in the course of the day. On top of this, sometimes all that is needed is longer drying time, if you are close on your chlorides and your bulkheads are damp. The other problem with the weather and cold in the winter is the possibility of condensation freezing in the cargo pipelines. Whenever drying tanks is difficult and care must be taken to cover tank tops with tarps and quite similar goes for your fans, In rain and cold.

Blank steam coils as soon as the WWT has passed. Same way cargo hoses must not be connected till the wall wash has passed. 70percent of methanol used, Surveyor won’t enter unless the TLV of methanol is &gt. Therefore, once hoses are connected no entry is allowed into tank. Do not seal tank tops yet, therefore this will come after final nitrogen purging. Lines for water, if all tanks have passed wall wash make a final check again of all tanks. Close all drains and tank tops.

Have airline breathing apparatus ready for use on deck.

Nitrogen purge started look down into any tank and see if any free water has come out of cargo drop line into tank, when cargo hose is connected and airblow is done. Only cargo lines are blown with nitrogen before loading. I know that the take first shot of nitrogen into that tank Sometimes a small quantity of meg is blown into the cargo tanks from the shore hose, I’d say in case spare tank is available. All nitrogen purging and blanketing is done after loading completes. When all out of tank you can reconnect loading hose and resume purging. Tell shore to stop nitrogen purge, disconnect cargo loading hose and put on air breathing apparatus and mop up water in tank, So if so.

Upon completion of loading the cargo tanks going to be purged down to 7 oxygen content. Pressurize every MEG FG tank in turn eventually tanks was taken down to 7 oxygen. When last tank was taken down to 7percentage oxygen have a person stand by the first tank to be pressurized and have dock close down nitrogen pressure to about one quarter open. Notice that the loading line can be cleared of product without risk of overflow because a good method do so that’s to start this in a slack tank.

Reduce nitrogen flow to 20percentage open.

Open next tank and close down tank valve, when relief valve lifts. It’s a well test all deck openings for leaks with ultrasonic probe. Nonetheless, you will keep a daily nitrogen pressure log of the nitrogen pressure in any tank in the course of the loaded voyage. Remember, if a tank falls to zero pressure introduce enough nitrogen to raise pressure to a positive pressure. Now pay attention please. Tank valve and start pressurizing have a person near p/v valve to ensure Undoubtedly it’s lifting.

Regarding ultraprobe. This ultraprobe costs around

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