|
1 |
Bringing down the level of tank content
to sludge level and measure the sludge
quantity. |
|
2 |
Replace the manhole cover with a cover. |
|
3 |
Add any solvent like, Diesel
, light cycle oil, Kerosene etc equal to sludge
quantity as a diluent of the oil content of the
sludge. |
|
4 |
Establish the circulation
system. |
|
5 |
Start the circulation system, |
|
6 |
Inject the chemical DISOLVITE into the
tank content at the VENTURY like inject
point given in the circulation system. |
|
7 |
Heat the tank content to 69
C to 70 C, while continuing the circulation. |
|
8 |
Add water if required to
increase the level of the content |
|
9 |
Check the sludge position
intermittently and continue the circulation till
the sludge is dissolved and mixed with the
dilutent. |
|
10 |
Stop the circulation and
allow the content to settle down into three
clear levels of Hydrocarbon-Water and MuckMud. |
|
11 |
Transfer the Hydrocarbon
with outlet pipeline of the manhole cover, till
all the oil is transferred while keeping the
temperature above 40 C or above. |
|
12 |
Water may be drained to
API. |
|
13 |
Bottom solid may be taken
out with manual help or with water jet. |
|
14 |
Inspection of the tank and
handover. |
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