Vegetable oil cleaning method
Question : How to clean veg oil ?
Answer : Following step can be follows to clean VEG OIL...
Step 1
Don't expose empty tank in air. Try to keep cool temperature inside the tank. Remove any remaining oil residue by gravitational and manual stripping, If possible Dampen a soft, clean cloth or rag under cool to room temperature water. Wring the cloth. The cloth should be damp, not dripping wet.
Step 2
If posible Lay the dampened cloth over the vegetable oil. Push downward to absorb as much oil as possible. Do not rub or wipe the oil. Lift the cloth.
Step 3
Spray and Sprinkle Hydrocarbon Remover HCF over any remaining vegetable oil. HCF cleaner will emulsify the oil, Allow the product to complete reaction for approximately an hour.
Step 4
Then follow genreal tank cleaning manual of SHIP. Common addopted method for tank cleaning is as follows :::
Spraying Method:-
Using HCF as delivered in drums, spray onto areas where residue remains following rough washing leave for 10-45 minutes (but do not allow to dry), then butterworth at maximum pressure and warm water 60oC for at least 3 hours, checking that there is no foam remaining in the final stages. Inspects tanks(s) and if desired result has been achieved fresh water rinse and dry.
**Make sure to take all safety precautions are followed when handling / spraying HCF**
Re-circulation Method:–
Fill tank with fresh water and heat up to warm 50oC . IF a drop line is available on the tank line system, then start to circulate the water and add the required amount of Caustic flakes and HCF to make a 2.5% solution. A stronger solution can be made, but be advised that too much Caustic and too high temperature will result in white powder all over the tank. Under normal circumstances, between 2.5% and 4.5% will be sufficient strength. If there is no drop line, then lower butterworth hoses into the tank from the pump stack header without machines attached and circulate through these hoses while you fill the solution material.
* Use a strainer at the pump stack when circulating any solution.*
Step 5
Once clean, use a dry, clean towel or rag to dry the area. Or keep tanks ventelated.
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