Parameter: Drawing
CNG-HP-32Parameter: Flow
CNG PLANT TAMBAK LOROK Page 38 of 53 HAZOP Node N10
PT ENVIROMATE TECHNOLOGY INDONESIA Appendix B - HAZOP Review Worksheet PT. ISTANA KARANG LAUT
No. Guide Words
Deviation Causes / Concerns Consequences Safeguards Iniating L S L R Comments / Recommendations Action Party Rec. No.
Double-valve provided at drain line of the individual equipments
10.4.1 Reverse Reverse Flow No additional significant issues of concerns identified
10.5.1 Part of Misdirected Flow No additional significant issues of concerns identified
10.6.1 Less Less Level Sump Pump P-400 fails to stop due to LT-1001 failure to function
Loss of liquid level leading to Sump Pump P-400 damage due to cavitation
Pump will be stopped during no signal (FC)
S (-) C(1)
1 S (-) C(L1)
10.7.1 More More Level Pump stopped due to no power supply or pump damage
Overfilling of Sump Tank V-400 and liquid release from vent to environment
LAH 1001 as high level alarm to alert operator
S (-) C(1)
1 S (-) C(L1)
SOP - draining activity is attended by operator Standby portable pump will be provided and connected to available spare nozzle
10.8.1 Less Less Pressure No additional significant issues of concerns identified
10.9.1 More More Pressure Refer to More flow
10.9.2 More More Pressure Blockage of flame arrestor at vent line
Potential
overpressurization of V-400
Bug screen provided
10.10.1 Less Less Temperature No additional significant issues of concerns identified
10.11.1 More More Temperature
No additional significant issues of concerns identified
10.12.1 As Well As Contamination No additional significant issues of concerns identified
10.13.1 Other Than
Composition No additional significant issues of concerns identified
10.14.1 Other Than
Corrosion / Erosion
No additional significant issues of concerns identified
10.15.1 Other Than
Instrumentation No additional significant issues of concerns identified
Parameter: Composition
Parameter: Corrosion / Erosion
Parameter: Instrumentation Parameter: Level
Parameter: Pressure
Parameter: Temperature
Parameter: Contamination
CNG PLANT TAMBAK LOROK Page 39 of 53 HAZOP Node N10
PT ENVIROMATE TECHNOLOGY INDONESIA Appendix B - HAZOP Review Worksheet PT. ISTANA KARANG LAUT
No. Guide Words
Deviation Causes / Concerns Consequences Safeguards Iniating L S L R Comments / Recommendations Action Party Rec. No.
10.16.1 Other Than
Relief No additional significant issues of concerns identified
10.17.1 Other Than
Occupational Safety
No additional significant issues of concerns identified
10.18.1 Other Than
External Factors No additional significant issues of concerns identified
10.19.1 Other Than
Operations No additional significant issues of concerns identified
10.20.1 Other Than
Maintenance No additional significant issues of concerns identified
10.21.1 Other Than
Drawing Parameter: Operation & Maintenance
Parameter: Drawing Parameter: Relief
Parameter: Safety
Parameter: External Factor
CNG PLANT TAMBAK LOROK Page 40 of 53 HAZOP Node N10
PT ENVIROMATE TECHNOLOGY INDONESIA Appendix B - HAZOP Review Worksheet PT. ISTANA KARANG LAUT
Node Abbreviations SOP Standard Operating Procedures
Review date IM Inspection & Maintenance
Client PM Preventative Maintenance
Project USD Unit Shutdown
Facility PSD Process Shutdown
Section ESD Emergency Shutdown
H,M,L
Co Consequence
Pr Probability
Ri Risk
S Safety Risk
C Commercial Risk
Comment Design Intent Design
Conditions: Capacity : 1.5 m3
Opt.
Conditions
Drawing Drawing No. TS78-P-PID-009 Rev:
No. Guide Words
Deviation Causes / Concerns Consequences Safeguards Iniating L S L R Comments / Recommendations Action Party
11.1.1 No No Flow 3" Manual valves at
incoming/outgoing line Fuel Gas filter is inadvertently closed
Loss of fuel gas supply leading to compressor shutdown
PT-0902 as low pressure alarm to alert operator
S (-) C(4)
1 S (-)
C(M4) Provide lock open (LO) for 3"
manual valves at upstream and downstream Fuel Gas Filter 11.1.2 No No Flow PCV-0901A/B stuck closed Loss of fuel gas supply
leading to compressor shutdown
PT-0902 as low pressure alarm to alert operator
S (-) C(4)
1 S (-) C(M4) Standby PCV available
11.2.1 Less Less Flow Pump N4 stop due to failure Less of fuel gas supply leading to compressor shutdown
PDI 0901A/B to monitor differential pressure
S (-) C(2)
1 S (-) C(L2) Back up fuel gas filter
available
PT-0902 as low pressure alarm to alert operator
11.3.1 More More Flow PCV-0901A/B stuck open Potential
overpressurization of downstream equipment
PT-0902 as high pressure alarm to alert operator
S (-) C(1)
1 S (-) C(L1) 11.4.1 Reverse Reverse Flow No additional significant issues of
concerns identified Fuel Gas System
11 17-Jun-13
PT ENVIROMATE TECHNOLOGY INTERNATIONAL Compressed Natural Gas Plant
Tambak Lorok
High, Medium, Risk
To provide fuel to compressor
Pressure : 13.5 barG Temperature: 45 deg C
Pressure : 10 barG Temperature : 21 deg C
PID - Fuel Gas System B
Rec. No.
Parameter: Flow
CNG-HP-33
CNG PLANT TAMBAK LOROK Page 41 of 53 HAZOP Node N11
PT ENVIROMATE TECHNOLOGY INDONESIA Appendix B - HAZOP Review Worksheet PT. ISTANA KARANG LAUT
No. Guide Words
Deviation Causes / Concerns Consequences Safeguards Iniating L S L R Comments / Recommendations Action Party Rec. No.
11.5.1 Less Misdirected Flow No additional significant issues of concerns identified
11.6.1 Less Less Level No additional significant issues of concerns identified
11.7.1 More More Level No additional significant issues of concerns identified
11.8.1 Less Less Pressure Refer to No Flow and Less Flow 11.9.1 More More Pressure Refer to More Flow
11.10.1 Less Less Temperature No additional significant issues of concerns identified
11.11.1 More More Temperature
No additional significant issues of concerns identified
11.12.1 As Well As Contamination No additional significant issues of concerns identified
11.13.1 Other Than
Composition No additional significant issues of concerns identified
11.14.1 Other Than
Corrosion / Erosion
No additional significant issues of concerns identified
11.15.1 Other Than
Instrumentation No additional significant issues of concerns identified
11.16.1 Other Than
Relief No additional significant issues of concerns identified
11.17.1 Other Than
Occupational Safety
No additional significant issues of concerns identified
11.18.1 Other Than
External Factors No additional significant issues of concerns identified
11.19.1 Other Than
Operations No additional significant issues of concerns identified
11.20.1 Other Than
Maintenance No additional significant issues of concerns identified
11.21.1 Other Than
Drawing Parameter: Level
Parameter: Pressure
Parameter: Contamination
Parameter: Corrosion / Erosion
Parameter: Relief
Parameter: External Factor
Parameter: Operation & Maintenance
Parameter: Drawing Parameter: Temperature
Parameter: Composition
Parameter: Instrumentation
Parameter: Safety
CNG PLANT TAMBAK LOROK Page 42 of 53 HAZOP Node N11
PT ENVIROMATE TECHNOLOGY INDONESIA Appendix B - HAZOP Review Worksheet PT. ISTANA KARANG LAUT
Node Abbreviations SOP Standard Operating Procedures
Review date IM Inspection & Maintenance
Client PM Preventative Maintenance
Project USD Unit Shutdown
Facility PSD Process Shutdown
Section ESD Emergency Shutdown
H,M,L
Co Consequence
Pr Probability
Ri Risk
S Safety Risk
C Commercial Risk
Comment Design Intent Design
Conditions: Capacity 183.63 SCFM (each)
Opt.
Conditions Power: 30 kW (each)
Drawing Drawing No. TS78-P-PID-008 Sheet 1 of 2 Rev:
TS78-P-PID-008 Sheet 2 of 2
No. Guide
Words Deviation Causes / Concerns Consequences Safeguards Iniating L S L R Comments / Recommendations Action Party
12.1.1 No No Flow Manual valve upstream of Instrument Air Receiver V-300 inadvertently closed
Loss of instrument air supply potentially leading to PSD
Instrument air supply from Instrument Air Receiver V-300 is provided for 5 minutes in operation
S (-) C(2)
1 S (-) C(L2)
PT-0803 set at 7 barg as low pressure alarm to alert Operator
Potential
overpressurization of upstream piping
NA Confirm availability of high
pressure trip at internal of Air Compressor C300A/B/C package to shut down compressor in the case of block of discharge
12.1.2 No No Flow Any manual valve upstream of Air Dryer Prefilter F300A/B inadvertently closed
Loss of instrument air supply potentially leading to PSD
Instrument air supply from Instrument Air Receiver V-300 is provided for 5 minutes in operation
S (-)
PT ENVIROMATE TECHNOLOGY INTERNATIONAL Compressed Natural Gas Plant
Tambak Lorok
Pressure : 12 barG Temperature: 45 deg C
Pressure : 6 - 10 barG Temperature : AMB - 40 deg C
High, Medium, Risk
PID - Instrument Air System Instrument Air System
To provide instrument air for instrumented system
PID - Instrument Air Network
Rec. No.
B B
Parameter: Flow
CNG-HP-34
CNG PLANT TAMBAK LOROK Page 43 of 53 HAZOP Node N12
PT ENVIROMATE TECHNOLOGY INDONESIA Appendix B - HAZOP Review Worksheet PT. ISTANA KARANG LAUT
No. Guide Words
Deviation Causes / Concerns Consequences Safeguards Iniating L S L R Comments / Recommendations Action Party Rec. No.
Potential
overpressurization of upstream piping
PSV 0801 set at 12 barG release air to atmosphere 12.1.3 No No Flow Any manual valve upstream of Air
Dryer D300A/B inadvertently closed
Loss of instrument air supply potentially leading to PSD
Instrument air supply from Instrument Air Receiver V-300 is provided for 5 minutes in operation Potential
overpressurization of upstream piping
PSV 0801 set at 12 barG release air to atmosphere 12.1.4 No No Flow Any manual valve upstream Air
Dryer after filter F301A/B inadvertently closed
Loss of instrument air supply potentially leading to PSD
Instrument air supply from Instrument Air Receiver V-300 is provided for 5 minutes in operation
S (-) C(2)
1 S (-) C(L2)
Potential
overpressurization of upstream piping
PSV 0802 release air to atmosphere
12.1.5 No No Flow Any manual valve downstream Air Dryer after filter F301A/B inadvertently closed
Loss of instrument air supply potentially leading to PSD
Instrument air supply from Instrument Air Receiver V-300 is provided for 5 minutes in operation Potential
overpressurization of upstream piping
PSV 0802 release air to atmosphere 12.1.6 No No Flow Air Compressors package
trip/broken
Loss of instrument air supply potentially leading to PSD
Auto start of standby compressor by PSLL-0803
S (-) C(2)
1 S (-) C(L2) Nitrogen back up at
downstream F-310A/B
12.1.7 No Flow Manual valve downstream
Instrument Air Receiver V-310 inadvertently closed
Loss of instrument air supply potentially leading to PSD
Instrument air supply from Instrument Air Receiver V-310 is provided for 5 minutes in operation
S (-) C(2)
1 S (-) C(L2)
Lock Open (LO) for manual valve downstream Instrument Air Receiver V-310
Potential
overpressurization of upstream piping 12.2.1 Less Less Flow Air Dryer Prefilter F300A/B
blockage
Less of instrument air supply potentially leading to PSD
PDI 0801 to monitor differential pressure
S (-) C(2)
1 S (-) C(L2) Wet instrument air quality
resulting in
instrumentation damage leading to potential shutdown
Dew Point Meter D0801
Spare Air Dryer Prefilter available
CNG-HP-35
CNG PLANT TAMBAK LOROK Page 44 of 53 HAZOP Node N12
PT ENVIROMATE TECHNOLOGY INDONESIA Appendix B - HAZOP Review Worksheet PT. ISTANA KARANG LAUT
No. Guide Words
Deviation Causes / Concerns Consequences Safeguards Iniating L S L R Comments / Recommendations Action Party Rec. No.
12.2.2 Less Less Flow Air Dryer D-200A/B blockage Less of instrument air supply potentially leading to PSD
PDI 0802A/B to monitor differential pressure
S (-) C(2)
1 S (-) C(L2) Wet instrument air
resulting in
instrumentation damage leading to potential shutdown
Dew Point Meter DE 0801
Spare Air Dryer available 12.2.3 Less Less Flow Air Dryer After Filter F301A/B
blockage
Less of instrument air supply potentially leading to PSD
PDI 0802 to monitor differential pressure
S (-) C(2)
1 S (-) C(L2) Wet instrument air quality
resulting in
instrumentation damage leading to potential shutdown
Dew Point Meter D0801
Spare Air Dryer After filter available
12.3.1 More More Flow All Air Compressor running simultaneously - no adverse consequence
12.4.1 Reverse Reverse Flow No additional significant issues of concerns identified
12.5.1 Part of Misdirected Flow 3/4" manual drain valve at V-300 inadvertently close
High pressure air blowby to sump tank V-400
Sump Tank V-400 is open to Less of instrument air
supply potentially leading to PSD
12.6.1 Less Less Level No additional significant issues of concerns identified
12.7.1 More More Level Water condensation in V-300 and lube oil entrainment from compressors
Low quality of instrument air leading to potential instrument damage and shutdown
SOP to monitor LG 0801 S (-)
C(2)
1 S (-) C(L2)
12.8.1 Less Less Pressure see no flow, less flow, misdirected flow 12.9.1 More More Pressure see no flow
12.10.1 Less Less Temperature No additional significant issues of concerns identified
12.11.1 More More Temperature
No additional significant issues of concerns identified
Parameter: Temperature
Parameter: Contamination Parameter: Level
Parameter: Pressure
CNG PLANT TAMBAK LOROK Page 45 of 53 HAZOP Node N12
PT ENVIROMATE TECHNOLOGY INDONESIA Appendix B - HAZOP Review Worksheet PT. ISTANA KARANG LAUT
No. Guide Words
Deviation Causes / Concerns Consequences Safeguards Iniating L S L R Comments / Recommendations Action Party Rec. No.
12.12.1 As Well As
Contamination No additional significant issues of concerns identified
12.13.1 Other Than
Composition No additional significant issues of concerns identified
12.14.1 Other
Than Corrosion /
Erosion No additional significant issues of concerns identified
12.15.1 Other Than
Instrumentation No additional significant issues of concerns identified
12.16.1 Other Than
Relief No additional significant issues of concerns identified
12.17.1 Other Than
Occupational Safety
No additional significant issues of concerns identified
12.18.1 Other Than
External Factors No additional significant issues of concerns identified
12.19.1 Other Than
Operations No additional significant issues of concerns identified
12.20.1 Other Than
Maintenance No additional significant issues of concerns identified
12.21.1 Other Than
Drawing No additional significant issues of concerns identified
12.21.2 Other Than
Drawing No additional significant issues of concerns identified
Parameter: Composition
Parameter: Drawing Parameter: Corrosion / Erosion
Parameter: Instrumentation
Parameter: Relief
Parameter: Safety
Parameter: External Factor
Parameter: Operation & Maintenance
CNG PLANT TAMBAK LOROK Page 46 of 53 HAZOP Node N12
PT ENVIROMATE TECHNOLOGY INDONESIA Appendix B - HAZOP Review Worksheet PT. ISTANA KARANG LAUT
Node Abbreviations SOP Standard Operating Procedures
Review date IM Inspection & Maintenance
Client PM Preventative Maintenance
Project USD Unit Shutdown
Facility PSD Process Shutdown
Section ESD Emergency Shutdown
H,M,L
Co Consequence
Pr Probability
Ri Risk
S Safety Risk
C Commercial Risk
Comment
Drawing Drawing No. TS78-P-PID-013 Rev:
No. Guide Words
Deviation Causes / Concerns Consequences Safeguards Iniating L S L R Comments / Recommendations Action Party
13.1.1 No No Flow Any of manual valve at fire water
ring inadvertently close/stuck close Lack of fire water supply resulting in inadequate water to extinguishing fire
SOP S (3)
C(3) 1 S (M3) C(M3)
13.1.2 No No Flow Existing fire water pump inoperation Fail to supply fire water in case of fire leading to fire escalation
S (3)
C(3) 1 S (M3) C(M3) 13.2.1 Less Less Flow Any of manual valve at fire water
ring partially close Lack of fire water supply resulting in inadequate water to extinguishing fire
SOP S (3)
C(3) 1 S (M3) C(M3)
13.3.1 More More Flow No additional significant issues of concerns identified
13.4.1 Reverse Reverse Flow No additional significant issues of concerns identified
13.5.1 Part of Misdirected Flow No additional significant issues of concerns identified
13.6.1 Less Less Level No additional significant issues of concerns identified
13 17-Jun-13
PT ENVIROMATE TECHNOLOGY INTERNATIONAL Compressed Natural Gas Plant
Tambak Lorok Fire Water System
Fire water is supplied from existing facility
to provide cooling system and extinguish fire from the process plant and building
Pressure : ATM Temperature: 45 deg C
Pressure : ATM Temperature : ambient
High, Medium, Risk
PID - Fire Water System
Rec. No.
B
Parameter: Flow
Parameter: Level
CNG PLANT TAMBAK LOROK Page 47 of 53 HAZOP Node N13
PT ENVIROMATE TECHNOLOGY INDONESIA Appendix B - HAZOP Review Worksheet PT. ISTANA KARANG LAUT
No. Guide Words
Deviation Causes / Concerns Consequences Safeguards Iniating L S L R Comments / Recommendations Action Party Rec. No.
13.7.1 More More Level No additional significant issues of concerns identified
13.8.1 Less Less Pressure see less flow
13.9.1 More More Pressure No additional significant issues of concerns identified
13.10.1 Less Less Temperature No additional significant issues of concerns identified
13.11.1 More More Temperature
No additional significant issues of concerns identified
13.12.1 As Well As Contamination No additional significant issues of concerns identified
13.13.1 Other Than
Composition No additional significant issues of concerns identified
13.14.1 Other
Than Corrosion / Erosion
No additional significant issues of concerns identified
13.15.1 Other
Than Instrumentation No additional significant issues of concerns identified
13.16.1 Other
Than Relief No additional significant issues of concerns identified
13.17.1 Other
Than Occupational Safety
No additional significant issues of concerns identified
13.18.1 Other Than
External Factors No additional significant issues of concerns identified
13.19.1 Other
Than Operations Review existing Tambak Lorok’s fire
water capacity to be adequate for fire water handling in CNG Plant 13.19.2 Other
Than Operations Consider to provide additional flowmeter
to measure fire water consumption for Tambak Lorok
13.20.1 Other
Than Maintenance No additional significant issues of concerns identified
13.21.1 Other
Than Drawing
Parameter: Instrumentation
Parameter: Relief
Parameter: Corrosion / Erosion Parameter: Pressure
Parameter: External Factor
Parameter: Operation & Maintenance
Parameter: Drawing
CNG PLANT TAMBAK LOROK Page 48 of 53 HAZOP Node N13