392-Methanol Operations / 748
Met
h
anol
Op
erations
BOS-PRD-07.900609
- The ship is underway at a speed of at least 7 knots.
- Ballast water, tank washings or other residues containing Chemical Product are of a concentration
not greater than one part of Chemical Product in ten parts of water.
- The discharge is made at a distance not less than 12 nautical miles from the nearest land.
Release the whole quantity of nitrogen from the bottles and the system.
4.
3
Maintenan
c
e
Follow instructions of the PMS and manufacturer.
No maintenance, opening of any element of the methanol system
should
be done without Master and Ch.
Engineer authorisation (manifolds, pressure valves, pumps, valves, tanks, manholes etc...)
4.
3
.1
Sy
ste
m
tests
du
rin
g
u
n
u
se
d p
erio
d
s
If the system is not used on a long term basis, simulations
shall
be carried out and Ch. Engineer
shall
make
sure that all elements of the system are operating properly.
For that purpose, fill the cofferdams and methanol tanks about 80 % with FW to save time, then put the tanks
under pressure completing with nitrogen. Nitrogen system is operating and PV valves are checked.
Then, FW is pumped out using the methanol pumps.
Version 04. Original date: 22/06/2012. Version date: 31/12/2014. Valid version only on QMS site. Uncontrolled document when printed.
Procedure prepared by: BOS Head of Operations. Approved by: BOS Head of Operations. Validated by: BOS Quality Representative.
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