Refinery - II M&I SD Oct-Nov 2018
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mendation<br />
| Recommendations<br />
ommendations | Recommendati<br />
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Top half radiant wall refractory replacement with additional shelf plate provision.<br />
Anticipate complete replacement of stack internal refractory<br />
Study for increasing BFW coil size from 3” to 5” and/or provision of additional rows of coils in BFW/superheater<br />
to absorb more convection heat shall be reviewed by PE<br />
25% Radiant tube guides & hanger supports shall be procured as spares and maintained for replacement in<br />
future.<br />
CO BOILER (16-F-03)<br />
Anticipate replacement of LSG vertical tubes<br />
Rectification/repair of combustion chamber peep doors on west side wall<br />
CO STACK (16-X-01)<br />
RLA study of Concrete structure of CO stack to be studied by Civil for further operation.<br />
16-C-04 CATALYST HOPPER<br />
Hopper shall be released for internal inspection as it was not done since inception.<br />
Anticipate replacement of Catalyst inlet and withdrawal nozzles.<br />
UFD of dish end weld seams shall be carried during next available opportunity.<br />
Anticipate replacement of internal grating square mesh wire.<br />
16-C-04 A ADDITIVE ADDITION POT<br />
Vessel shall be released for internal inspection at the earliest.<br />
16-C-05 CATALYST HOPPER<br />
Hopper shall be planned for release for internal inspection as it was not done since inception.<br />
Anticipate replacement of Catalyst inlet and withdrawal nozzles.<br />
UFD of dish end weld seams shall be carried during next available opportunity.<br />
Anticipate replacement of internal grating square mesh wire.<br />
16-C-07 RAW OIL SURGE DRUM<br />
ecommendations | Recommendations | Recommenda<br />
tions | Recommendations | Recommendations | Recommendatio<br />
8.4.3 COLUMNS & VESSELS:<br />
16-C-01 MAIN COLUMN<br />
Shell insert plate shall be provided at the existing patch welded location between Elevation 26000 mm to<br />
30000 mm (Gempack Bed 2 region) with 3.2 m X 3.2 m approx., 14 mm thick SA 516 Gr 60 plate and this shall<br />
be taken up within 2 years of run length from <strong>Nov</strong> <strong>2018</strong>. In case of a proposal for FCCU rev<strong>amp</strong> in future the<br />
complete column along with internals may be reviewed for replacement considering internal fire witnessed<br />
twice in 35 years of operation.<br />
Complete insulation renewal and painting as per CPCL painting system I.<br />
16-C-09 HP HYDRAULIC OIL RECEIVER<br />
Anticipate for rectification of fire proofing of the vessel.<br />
16-C-10 LP OIL RECEIVER<br />
Anticipate for rectification of fireproofing of the vessel in the next opportunity.<br />
Skirt plate assessment shall be carried out.<br />
16-C-11 BLOW DOWN DRUM<br />
| Recommendations | Recommendations | Recommendations | Rec<br />
Anticipate for patch plate repair on the shell at thinned out areas in next M&I.<br />
Legs fire proofing (4 nos) to be rectified.<br />
16-C-16 INSTRUMENT AIR KOD<br />
Anticipate replacement of demister as per PE recommendation.<br />
Internal painting shall be carried out as per CPCL System XI.<br />
Anticipate replacement of small bore nozzles.<br />
dations | Recommendations | Recommendations | Recommendatio<br />
16-C-51 COMPRESSOR SUCTION DRUM<br />
Anticipate replacement of demister in consultation with PE.<br />
Anticipate internal painting as per CPCL Painting System XI.<br />
s | Recommendations | Recommendations | Recommendations | R<br />
16-C-52 INTER STAGE RECEIVER<br />
Anticipate replacement of demister in consultation with PE.<br />
Anticipate internal painting as per CPCL Painting System XI.<br />
endations | Recommendations | Recommendations | Recommenda<br />
704<br />
It is also recommended to carryout RLA study of the entire column in the next outage during insert plate shell<br />
replacement.<br />
Monitor 4” dia FF nozzle, 4” dia JD nozzle, 2” dia KL1 and KL2 nozzles.<br />
Chimney Tray number 4 (bottom most) to be replaced.<br />
Anticipate replacement of coke catcher.<br />
Anticipate repair of retainer plate of 24” feed inlet nozzle.<br />
Anticipate bed replacement as per PE.<br />
Platform modification shall be carried out near 24” feed inlet nozzle as per drawing 16-B-42100 Rev 0.<br />
16-C-02 LIGHT CYCLE OIL STRIPPER<br />
Anticipate weld repair of trays and downcomers.<br />
Corroded 2 nos platforms to be changed to EIL type <strong>II</strong> profile gratings (10 sq.m).<br />
16-C-03 HCO STRIPPER<br />
Chennai Petroleum Corporation Limited (A group company of Indian Oil)<br />
Technical - Inspection<br />
Fire proofing of the column to be rectified.<br />
16-C-53 WATER INJECTION TANK<br />
Anticipate internal painting as per CPCL Painting System XI in next M&I<br />
16- C-55 PRIMARY ABSORBER<br />
Recommendations | Recommendations | Recommendations | Re<br />
Replace top 4 trays in consultation with PE.<br />
<strong>Refinery</strong> - <strong>II</strong> M&I S/D <strong>Oct</strong>-<strong>Nov</strong> <strong>2018</strong> - Inspection Report<br />
Chennai Petroleum Corporation Limited (A group company of Indian Oil)<br />
Damaged fire-proofing to be rectified and skirt plate shall be assessed.<br />
Technical - Inspection<br />
ions | Recommendations | Recommendations | Recommendati<br />
dations | Recommendations | Recommendations |<br />
tions | Recommendations | Recommend<br />
ndations | Recommendations<br />
ations | Recomm<br />
endati<br />
<strong>Refinery</strong> - <strong>II</strong> M&I S/D <strong>Oct</strong>-<strong>Nov</strong> <strong>2018</strong> - Inspection Report<br />
705<br />
CONSOLIDATED SHUTDOWN<br />
RECOMMENDATIONS
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