To determine the leak size and -frequency, an equipment count was performed using the P&IDs.
The equipment count for pipelines, valves and number all individual vessels, heat exchangers, pumps, filters etc. have been compiled and transferred into the LEAK frequency calculation. The resulting data is used in DNV's LEAK 3.2 software, to determine overall leak frequencies and leak sizes.
Details are indicated in the subsequent tables.
Unit Eq-ID Name Number Diameter Diameter Length Operating pressure tempeatureOperating Volumen Stream content Inventory Remarks inch mm mm bara °C m³ kg
IL1 20-HA-101 Tube Bundel Heat Exchanger 1 500 5000 110 -10.44 0.98 Feed Gas 103 IL1 20-HA-103 Tube Bundel Heat Exchanger 1 520 5500 109.28 39.9 Feed Gas small IL1 20-VE-101 Amine Wash Column
1 1150 23800 110 32 24.72 Feed Gas 2365.5 IL1 20-VL-111 Feed Gas Water KO Drum 1 800 1930 107.8 25.29 0.97 Feed Gas 93 IL1 20-VK-111 Feed Gas Drier 2 1400 4225 109 25.25 6.5 Feed Gas 1243 IL1 20-LF-111 Dry Gas Filter
1 500 107.8 28 Feed Gas small
IL1 20-HA-102 Amine Strip Column Reboiler 1 1400 4000 109 25 Feed Gas small in IL11 as leak source counted IL1 20-HA-111 Regeneration Gas Heater 1 381.4 5500 108.2 28 Regeneration Gas in IL11 as leak source counted IL1 20 HC-111 Regeneration Gas Cooler 2 2000 107.1 180 0.13 Regeneration Gas small
IL1 20-VL-112 Regeneration Gas KO Drum 1 350 1400 105.6 25 Regeneration Gas 12.2 IL1 20-KF-111 Regeneration Gas Blower 1 3000 105 24.97 Regeneration Gas 12.2
IL1 Fittings 38 2" 109 60 Feed Gas
IL1 Flanges 41 1-6" 150 109 60 Feed Gas
IL1 Flanges 5 14-28" 600 109 60 Feed Gas IL1 Pipelines <=3" 50 <=3" 80 109 60 Feed Gas IL1 Pipelines 4-8" 200 4-8" 150 109 60 Feed Gas IL1 Valves non-actuated 75 1-6" 150 109 60 Feed Gas IL1 Values actuated 25 1-6" 150 109 60 Feed Gas
Total 4000
Feedgas Purifiction (IL1)
IL2A 25-HX-101 Feed Gas Precooler
1 2100 8000 107.19 28 1.21 Feed Gas 190
in IL6A1 as leak source counted
IL2A Fittings 1 2" 107 -27 Precooled Feed Gas IL2A Flanges 16 1-6" 107 -27 Precooled Feed Gas IL2A Pipelines 4-8" 50 4-8" 150 107 -27 Precooled Feed Gas IL2A Valves non-actuated 2 1-6" 150 107 -27 Precooled Feed Gas
Total 190 IL2B 25-HX-102 Feed Gas Liquefier
1 1900 16000 102.5
-113.92 2.8 Liquid Feed Gas 1098
in I6A1 as leak source counted (refer remarks 25-HX-101) IL2B 25-HX-103 Feed Gas Subcooler
1 1200 10000 102.5
-113.92 0.9 Liquid Feed Gas 406
in I6A1 as leak source counted (refer remarks 25-HX-101) IL2B Fittings 2 2" 103 -114 Liquid Feed Gas
IL2B Flanges 4 1-6" 150 103 -114 Liquid Feed Gas IL2B Valves non-actuated 4 1-6" 150 103 -114 Liquid Feed Gas IL2B Values actuated 1 1-6" 150 103 -114 Liquid Feed Gas IL2B Pipelines 4-8" 110 4-8" 150 103 -112 Liquid Feed Gas
Total 1504
NG Liquefication Gas (IL2A)
Unit Eq-ID Name Number Diameter Diameter Length Operating pressure tempeatureOperating Volumen Stream content Inventory Remarks inch mm mm bara °C m³ kg
16 bara
IL3B LNG Rundown Line 150 200000 16 -160 LNG 1600
IL3B Fittings 1 2" 50 16 -160 LNG
IL3B Pipelines 4-8" 200 4-8" 150 16 -160 LNG IL3B Valves non-actuated 9 1-6" 150 16 -160 LNG IL3B Values actated 1 1-6" 150 16 -160 LNG
1 bara
IL3B Flanges 20 1-6" 150 1 -160 LNG
Total 1600
5 bara
IL4 LNG Truck Loading Line 100 250000 5 -161.5 1.96 LNG 900
IL4 Fittings 5 2" 50 5 -161.5 LNG
IL4 Flanges 24 1-6" 150 5 -161.5 LNG
IL4 Pipelines <=3" 150 2" 50 5 -161.5 LNG IL4 Pipelines 4-8" 100 4-8" 100 5 -161.5 LNG
-161.5
IL4 Valves non-actuated 36 1-6" 150 5 -161.5 LNG IL4 Values actuated 9 1-6" 150 5 -161.5 LNG
1 bara
IL4 Pipelines <=3" 10 <=3" 50 1 -160 LNG IL4 Valves non-actuated 1 1-6" 150 1 -160 LNG
Total 900 IL5A LNG Ship Loading Tank Top 5 -161.5 LNG 1500
IL5A Fittings 2 2" 50 5 -161.5 LNG
IL5A Flanges 20 1-6" 150 5 -161.5 LNG
IL5A Flanges 10 8-12" 300 5 -161.5 LNG
IL5A Valves non-actuated 27 1-6" 150 5 -161.5 LNG IL5A Valves non-actuated 4 8-12" 300 5 -161.5 LNG IL5A Valves actuated 6 1-6" 150 5 -161.5 LNG IL5A Valves actuated 2 8-12" 300 5 -161.5 LNG
Total 1500 IL5B1/B2/B3 LNG Ship Loading Line 325 340000 5 -161.5 28.21 LNG 127800 IL5B1/B2/B3 Pipelines <=3" 110 3" 80 5 -161.5 LNG
IL5B1/B2/B3 Pipelines 9-12" 110 9-12" 300 5 -161.5 LNG
Total 127800
IL5C LNG Ship Loading Jetty 5 -161.5 LNG 127800
IL5C Fittings 2 2" 50 5 -161.5 LNG
IL5C Flanges 10 8-12" 300 5 -161.5 LNG
IL5C Valves non-actuated 2 8-12" 300 5 -161.5 LNG IL5C Values actuated 1 8-12" 300 5 -161.5 LNG
Total 127800
LNG Ship Loading Line (IL5B1/B2/B3) LNG Ship Loading Tank Top (IL5A)
LNG Truck Loading (IL4)
LNG Ship Loading Jetty (IL5C) LNG Storage (IL3B)
IL6A1 25-VL-101 Cycle compressor Suction Drum 1 2600 7960 3.79 19.42 53.7 Mixed LP Refrigerant 1128 IL6A1 25-HX-101 Feedgas Precooler
1 2100 8000 4 20 27.71 Mixed LP Refrigerant 158 25-HX- 101/102/103 in this inventory loop as Vessel in leak counted IL6A1 Fittings 2 2" 50 4 20 Mixed LP Refrigerant
IL6A1 Flanges 15 1-6" 50
IL6A1 Flanges 7 1-6" 150 4 20 Mixed LP Refrigerant IL6A1 Flanges 10 30" 750 4 20 Mixed LP Refrigerant IL6A1 Pipelines 18-28" 20 20" 500 4 20 Mixed LP Refrigerant IL6A1 Pipelines 30" 40 30" 750 4 20 Mixed LP Refrigerant IL6A1 Valves non-actuated 4 1-6" 50 4 20 Mixed LP Refrigerant IL6A1 Valves non-actuated 2 1-6" 150 4 20 Mixed LP Refrigerant IL6A1 Valves non-actuated 1 8-12" 300 4 20 Mixed LP Refrigerant IL6A1 Valves non-actuated 2 30" 750 4 20 Mixed LP Refrigerant IL6A1 Values actuated 2 1-6" 150 4 20 Mixed LP Refrigerant
Total 1286
Unit Eq-ID Name Number Diameter Diameter Length Operating pressure tempeatureOperating Volumen Stream content Inventory Remarks inch mm mm bara °C m³ kg
IL6A2 25-VL-102 Cycle Compressor Interstage Drum 1 2600 7320 17.6 20.95 38.86 Mixed LP Refrigerant 933 IL6A2 25-KA-101 Cycle Compressor 2 3500 17.6 20.95 Mixed LP Refrigerant 1128 IL6A2 25-HC-101 Cycle Compressor Intercooler 4 4000 17.6 small
IL6A2 Fittings 2 2" 50 18 20
IL6A2 Flanges 12 1-6" 150 18 20 Mixed LP Refrigerant IL6A2 Flanges 9 8-12" 300 18 20 Mixed LP Refrigerant IL6A2 Flanges 5 14-28" 400 18 20
IL6A2 Flanges 9 14-28" 500 18 20 Mixed LP Refrigerant IL6A2 Pipelines 13-18" 20 16" 400 18 20 Mixed LP Refrigerant IL6A2 Pipelines 18-28" 50 20" 500 18 20 Mixed LP Refrigerant IL6A2 Valves non-actuated 4 1-6" 150 18 20 Mixed LP Refrigerant IL6A2 Valves non-actuated 1 14-28" 400 18 20 Mixed LP Refrigerant IL6A2 Valves non-actuated 2 14-28" 500 18 20 Mixed LP Refrigerant IL6A2 Values actuated 2 1-6" 150 18 20 Mixed LP Refrigerant IL6A2 Values actuated 1 8-12" 300 18 20 Mixed LP Refrigerant IL6A2 Values actuated 1 14-28" 450 18 20 Mixed LP Refrigerant
Total 2061 IL6A3 25-HC-102 Cycle Compressor Aftercooler
2 6000 41.03 76.56 Light HP Refrigerant small IL6A3 25-VA-101 Cycle HP Separator 1 2000 3860 40.53 25 12.13 Light HP Refrigerant 703.5
IL6A3 25-VA-102 Cold MRC Separator 1 2000 8470 40 -26.5 12.1 Light HP Refrigerant642 in IL6B as leak source counted IL6A3 Fittings 3 2" 50 40 -26.5 Light HP Refrigerant
IL6A3 Flanges 18 8-12" 12" 40 -26.5 Light HP Refrigerant IL6A3 Pipelines 4-8" 20 8" 200 40 -26.5 Light HP Refrigerant IL6A3 Pipelines 9-12" 60 12" 300 40 -26.5 Light HP Refrigerant IL6A3 Valves non-actuated 4 8-12" 12" 40 -26.5 Light HP Refrigerant IL6A3 Values actuated 2 8-12" 12" 40 -26.5 Light HP Refrigerant
Total 1345.5
IL6B1 25-HX-101 Feed Gas Precooler
1 2100 8000 40.2 -25.6 1.6 Mixed Refrigerant 962 in I6A1 as leak source counted (refer remarks 25-HX-101) IL6B1 25-HX-103 Feed Gas Subcooler
1 1200 10000 33.2 -25.6 5.5 Mixed Refrigerant 3086 in I6A1 as leak source counted (refer remarks 25-HX-101) IL6B1 Fittings 3 2" 50 40.2 -25.6 Mixed Refrigerant
IL6B1 Flanges 14 1-6" 150 40.2 -25.6 Mixed Refrigerant IL6B1 Flanges 4 8-12" 300 40.2 -25.6 Mixed Refrigerant IL6B1 Pipelines 4-8" 25 4-8" 150 40.2 -25.6 Mixed Refrigerant IL6B1 Pipelines 9-12" 10 9-12" 250 40.2 -25.6 Mixed Refrigerant IL6B1 Pipelines 9-12" 5 10 9-12" 300 40.2 -25.6 Mixed Refrigerant IL6B1 Valves non-actuated 2 1-6" 150 40.2 -25.6 Mixed Refrigerant IL6B1 Values actuated 1 1-6" 150 40.2 -25.6 Mixed Refrigerant
Total 4050 IL6B2 25-VA-101 Cycle HP Separator
1 2000 3860 40.53 25 12.13 Mixed Refrigerant 5700 in IL6A1 as leak source counted IL6B2 Flanges 7 1-6" 100 40.2 25
Refrigeration Liquid 25-VA-101 System (IL6B2) Refrigeration Gas_18 bar System (IL6A2)
Refrigeration Gas_40 bar System (IL6A3)
Refrigeration Liquid 25-HX-101/25-HX-103 System (IL6B1)
IL7 58-VS-101 Propane Tank 1 2100 7500 8 15 26 Propane 18395 IL7 58-VK-101 Liquid Propane Drier 1 390 1240 8 15 0.15 Propane 106 IL7 58-LF-101 Liquid Propane Filter 1 500 8 15 0.2 Propane 100
IL7 Fittings 7 2" 50 8 15 Propane
IL7 Flanges 36 1-6" 50 8 15 Propane
IL7 Flanges 1 14-28" 600 8 15 Propane
IL7 Pipelines <=3" 15 2" 50 8 15 Propane IL7 Valves non-actuated 12 1-6" 50 8 15 Propane IL7 Values actuated 3 1-6" 50 8 15 Propane
Total 18600 IL8 58-VS-102 Pentane Tank 1 1800 5400 8 14.84 13.74 Pentane 8656 IL8 58-VK-102 Liquid Butane/Pentane Drier 1 390 1240 8 14.84 0.15 Pentane 87 IL8 58-LF-102 Liquid Butane/Pentane Filter 1 500 8 14.84 Pentane small
IL8 Fittings 11 2" 50 Pentane
IL8 Flanges 74 1-6" 150 8 14.84 Pentane
IL8 Flanges 1 14-28" 600 Pentane
IL8 Pipelines <=3" 15 3" 80 8 14.84 Pentane IL8 Valves non-actuated 20 1-6" 150 8 14.84 Pentane IL8 Values actuated 4 1-6" 150 8 14.84 Pentane
Total 8743
Propane Storage (IL7)
Unit Eq-ID Name Number Diameter Diameter Length Operating pressure tempeatureOperating Volumen Stream content Inventory Remarks inch mm mm bara °C m³ kg
IL9 58-VS-103 Butane Tank 1 1750 8 14.84 9.5 Butane 5482 IL9 58-VK-103 Liquid Batane Drier 1 390 1240 8 14.84 0.15 Butane 86 IL9 58-LF-103 Liquid Batane Filter 1 500 8 14.84 small
IL9 Fittings 4 2" Butane
IL9 Flanges 45 1-6" 150 8 14.84 Butane
IL9 Flanges 1 14-28" 600 Butane
IL9 Pipelines <=3" 15 3" 80 8 14.84 Butane IL9 Valves non-actuated 15 1-6" 150 8 14.84 Butane IL9 Values actuated 3 1-6" 150 8 14.84 Butane
Total 5568 IL10A 58-VK-104 Liquid Ethylene Drier 1 390 1240 8 -3 0.15 Ethylene 1 IL10A 58-LF-104 Liquid Ethylene Filter 1 500 1000 8 -3 0.2 Ethylene 1 IL10A 58-VS-104 Ethylene Tank
1 4900 2800 8 -58.4 3 Ethylene 16
in IL10B as leak source counted
IL10A Fittings 2 2" 50 8 -58.4 Ethylene
IL10A Flanges 16 1-6" 150 8 -58.4 Ethylene IL10A Pipelines <=3" 30 3" 80 8 -58.4 Ethylene IL10A Valves non-actuated 5 1-6" 150 8 -58.4 Ethylene
Total 18 IL10B 58-VS-104 Ethylene Tank 1 4900 2800 8 -58.4 25 Ethylene 8350
IL10B Fittings 10 2" 50 8 -58.4 Ethylene
IL10B Flanges 55 1-6" 150 8 -58.4 Ethylene IL10B Flanges 1 14-28" 600 8 -58.4 Ethylene IL10B Pipelines <=3" 50 3" 80 8 -58.4 Ethylene IL10B Valves non-actuated 19 1-6" 150 8 -58.4 Ethylene IL10B Values actuated 4 1-6" 150 8 -58.4 Ethylene
Total 8350 IL11 20-HA-102 Amine Strip Column Reboiler 1 4 185 6.2 Hot Oil 2060 IL11 20-HA-111 Regenaration Gas Heater 1 381.4 5500 4 185 0.63 Hot Oil 446
IL11 Fittings 10 2" 50 6 192 Hot Oil
IL11 Flanges 60 1-6" 150 6 192 Hot Oil
IL11 Pipelines <=3" 100 3" 80 6 192 Hot Oil Pipelines 4-8" 100 6" 150 6 192 Hot Oil IL11 Valves non-actuated 17 150 6 192 Hot Oil IL11 Values actuated 4 1-6" 6" 6 192 Hot Oil
Total 2500 IL12 Feedgas Fiscal Metering Package 110 20 Feed Gas 150
IL12 Fittings 5 2" 50 110 20 Feed Gas
IL12 Flanges 8 8" 200 110 20 Feed Gas
IL12 Pipelines 4-8" 40 8" 200 110 20 Feed Gas IL12 Valves non-actuated 8 8" 200 110 20 Feed Gas
Total 150 IL13 Tailgas Fiscal Metering Package 10 20 Tailgas 2
IL13 Fittings 3 2" 50 10 20 Tailgas
Feedgas Fiscal Metering (IL12)
Tailgas Fiscal Metering (IL13) Hot Oil Systemes (IL11) Ethylene Storage Liquid System (IL10B)
Ethylene Storage Gas System (IL10A) Butane Storage (IL9)
IL13 Pipelines <=3" 20 3" 80 10 20 Tailgas IL13 Valves non-actuated 8 3" 80 10 20 Tailgas