INSPECTION REPORT
Department
QA/QC
Status
Controlled Copy
Reference
GNGC–GPP & Stations
Revision
“A”
Sheet No.
1
Report No:
Project Name:
SECTION 1
Report
Originator:
EXTERNAL VISUAL
INSPECTION
Ibrahim S.
Bamba
Title:
QA/QC
Officers
Reference
Document:
Date:
System/Equipment
Of
QAQC-IROGPP-000
API 510
22nd July, 2023
UNIT:20
DEETHANIZER
REBOILER (E240)
Introduction/ An on-stream external visual inspection was conducted on Deethanizer
Summary: Reboiler vessel at GPP unit 20, in accordance with API 510.
The inspection was conducted to determine the coating status of vessel and
its associated hardware (tubing, supports, flanges, nozzles,) and to check for
corrosion, signs of leakages on the vessel to assure continued vessel
integrity.
SECTION 1
The inspection revealed no signs of corrosion and no coating failure on
vessel. However, mild uniform corrosion was noted on anchor bolts, the
Insulation, gauge connections, and earthing were all in good condition as at
the time of inspection.
No leakage was observed during the inspection.
The vessel was in serviceable condition as at the time of inspection.
Supporting See attached appendix for:
Information:
 Pictures
(list any relevant
 Inspection checklist
documents)
SECTION 2
1
Detailed report
(repair, inspection,
modification, new
construction)
Product Name: Deethanizer Reboiler (E-240).
Thickness of Head: 27mm
Thickness of Shell: 31.75mm
Diameter: 1524mm
Corrosion Allowance: 1.59mm
Shell Capacity: 13.2m3
Tube Capacity: 0.93m3
Shell Temperature: 204℃
Tube Temperature: 302℃
Shell AT Pressure: 41.4 Barg
Tube AT Pressure: 10Barg
Weight: 16557 Kg
Length: 8210mm
THIS DOCUMENT WHEN PRINTED IS AN UNCONTROLLED COPY VALID FOR 3 MONTHS
INSPECTION REPORT
Department
QA/QC
Status
Controlled Copy
Reference
GNGC–GPP & Stations
Revision
“A”
Sheet No.
2
Of
1
An external visual inspection was conducted on Deethanizer Reboiler (E240) at GPP unit 20 on 20th July, 2023.
This is an insulated horizontal coated carbon steel vessel with stainless steel
instrumentation.The vessel was examined for leakages, corrosion, coating,
insulation and instrumentation serviceability.
The vessel was generally in good condition. However, mild localised
corrosion was visible on the anchor bolts and on skid due to water
accumulation at the base. Insulation was in good condition. No yielding or
sign of leakages were seen on the flange connections and welds.
SECTION 3
The vessel (E-240) was in serviceable condition as at the time of inspection.
Recommendations
/Challenges:
RESPONSIBLE
SUPERVISOR
/MANAGER
1. Anti-corrosion works should be carried out on corroded areas
2. Holes should be drilled through the skid to prevent further
accumulation of water.
3. All anchor bolts should be greased to prevent further corrosion.
4. CMLs on pipeline should be monitored frequently for CUIs.
Name,
Job Title
Sign
Date
:
:
:
:
Solomon M. Blay
Asst. MANAGER QA/QC Dept.
THIS DOCUMENT WHEN PRINTED IS AN UNCONTROLLED COPY VALID FOR 3 MONTHS
INSPECTION REPORT
Department
QA/QC
Status
Controlled Copy
Reference
GNGC–GPP & Stations
Revision
“A”
Sheet No.
3
APPENDIX –pictures
Vessel insulation in good condition.
General corrosion on anchor bolt.
Mild localised corrosion on skid.
Vessel nameplate in good condition.
THIS DOCUMENT WHEN PRINTED IS AN UNCONTROLLED COPY VALID FOR 3 MONTHS
Of
1