Octopol

Two tanker operations that have the greatest impact on the safety of personnel and of the environment are Cargo tank cleaning for man-entry, and the disposal of slops. Practical demonstration of cleaning the ODME measuring cell Disclaimer: The author is not a certified ODME technician however he has vast operating experience of the equipment. This... video doesn't support any Marpol violations. If the ppm alarm exists even after cleaning the cell pls dispose slops as per Marpol regulations. The video has been shot in intrinsically safe atmosphere only. The video has been made in free time on board without any rest hour violations. FOR MARINE ENGINEERING NOTES AND BOOKS YOU CAN VISIT OUR BLOG ,IT IS VERY HELPFUL FOR MEO CLASS4 AND CLASS2 EXAM https://sites.google.com/site/frerfuninstudy/ MOBILE NO ;- +91-8210767178 EMAIL;- CRANH124@GMAIL.COM Crude oil washing (COW) is washing out the residue from the tanks of an oil tanker using the crude oil cargo itself, after the cargo tanks have been emptied. Crude oil is pumped back and preheated in the slop tanks, then sprayed back via high pressure nozzles in the cargo tanks onto the walls of the tank. Due to the sticky nature of the crude oil, the oil clings to the tank walls, and such oil adds to the cargo 'remaining on board' (the ROB). By COWing the tanks, the amount of ROB is significantly reduced, and with the current high cost of oil, the financial savings are significant, both for the Charterer and the Shipowner. If the cargo ROB is deemed as 'liquid and pumpable' then the charterers can claim from the owner for any cargo loss for normally between 0.3% up to 0.5%. It replaced the load on top and seawater washing systems, both of which involved discharging oil-contaminated water into the sea. MARPOL 73/78 made this mandatory equipment for oil tankers of 20,000 tons or greater deadweight. Although COWing is most notable for actual tankers, the current chairman for Hashimoto Technical Service, Hashimoto Akiyoshi, applied this method in washing refinery plant oil tanks ...Read More