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Tank Fire Caused by the Earthquake at Idemitsu Hokkaido Refinery Makoto Hirai Manager, Research and Technology Idemitsu International (Europe) plc.

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Presentation on theme: "Tank Fire Caused by the Earthquake at Idemitsu Hokkaido Refinery Makoto Hirai Manager, Research and Technology Idemitsu International (Europe) plc."— Presentation transcript:

1 Tank Fire Caused by the Earthquake at Idemitsu Hokkaido Refinery Makoto Hirai Manager, Research and Technology Idemitsu International (Europe) plc

2 AGENDA 1.Company Profile 2.Outline of Tank Fire 3.Conclusion

3 AGENDA 1.Company Profile 2.Outline of Tank Fire 3.Conclusion

4  Head Office : Tokyo, Japan  Founded : June 20, 1911  Employees (Group) : 7,737 (31 st March, 2006)  Net Sales (Group) : 3,327 billions (\)  Refineries : 4 (640,000B/D)  Overseas Office : 36 In Middle East Abu Dhabi, Tehran, Dhahran, Muscat, Doha (5) 1. Company Profile

5 Oil Exploitation Crude Oil Transportation Oil Refining 4 Refineries Chemical Plant 2 Plants Domestic Transportation Retail: 5,294 station 1. Company Profile (Cont’d)

6 Aichi Tokuyama Hokkaido Chiba STARTED YEAR : 1957 Petrochemical Complex *CDU / FCC *Steam Cracker 450 Mt/yr STARTED YEAR : 1975 *CDU / ARDS / R2R / ALK STARTED YEAR : 1973 *CDU / ARDS / R2R STARTED YEAR : 1963 Lube & Petrochemical Complex *CDU / ARDS / FCC *Steam Cracker 374 Mt/yr Aichi 1. Company Profile (Cont’d) Location of Idemitsu Refineries

7 AGENDA 1.Company Profile 2.Outline of Tank Fire 3.Conclusion

8 2. Outline of Tank Fire Two Tank Fire were occurred after Earthquake (at 4.50am, 26 th September, 2003) #30006(#3’6)#30063(#3’63) Tank No. D:42.7m, H:24.39m, Max 32,779kl (FRT) Tank Prof. Crude Oil (31,160kl) Naphtha (26,874kl) Content (incident) Ring FireFull Surface Fire Incident case Occurred: at 4.51 26 th Sep. Extinguished: after 12hours Occurred: at 10.45 28 th Sep. Extinguished: after 44hours Fire fighting Situation

9 Appendix 1 Overview of the Tokachi ー Oki Earthquake and Hokkaido Refinery Seismograph Data Overview of the 2003 Earthquake Hokkaido Refinery Seismograph Data Acceleration Time Series ) Time of Earthquake Depth of epicenter Magnitude Location of epicenter : About 04:50 September 26th 2003 : 42 km : 8.0 : Latitude 41º46.78’ Longitude 144º4.71’ Maximum surface acceleration (Combined maximum acceleration : 86 gal) N orth-south : 69 gal East-west : 76 gal Up-down : 38 gal N.B. This map has been reproduced with permission from Numerical Map 200000 (coast lines, administrative Areas) published by the Geographical Survey Institute ( Permit Number 2003 Copy No. 367 ) epicenter Hokkaido Refinery

10 24°30′ 警防警防 6000160005600026000360004 600096000760008 30006 4006140062 40064 30063 10151 10155 10159 1016310164 2515325154 25157 25158 10253 10255 10257 10252 10254 10256 10258 202622026320264 202652026620267 30351 変電所変電所 計器室計器室 1001110012 40013 Electric generator Inner port Office Laboratory Cafeteria 52595260 B-H3 Deionizer Central Transformer Station Industrial water storage tank YO CPI YO-T1AYO-T1B YO-T2AYO-T2B Central Transformer Station No. 2 PC Storage NO.9 NO.8 NO.7 NO.5NO.4NO.3 NO.1 Berth Sea water pump 10251 Power Area B-H1B-H2 No. 1 Flare Changing Room Tower Main Building Now-defunct Smokestack assembly 放流口 Rising Bridge Atmospheric Distillation Facility Hydrogen Recovery Facility Contact Modification Facility Naphtha Hydrogenation Desulphurization Facility Kerosene and Diesel Oil Hydrogenation Desulphurization Facility Heavy Diesel Oil Hydrogenation Dissolution Facility West Bridge Depressurization Distillation Facility No. 1 Nitrogen Supply Facility Gas/LPG Cleansing Facility LPG Refining Facility Through Gate Main Gate Crude Oil Direct Desulphurization Facility Sulphur Recovery Facility Hydrogen Manufacturing Facility Gas turbine Steam turbine Crude Oil Fluid Catalytic Analysis Facility Diesel Depth Hydrogenation Sulpherization Facility Sulphur Supply Facility No. 2 SDM Temporary Building Sulfur Recovery Facility Primary Drainage Treatment Facility Area 650 100651 100652 100653 100654 Oil drainer T ‐ V690 Naphtha Crude oil 24°30′ RN Tank with outbreak of fire on 26th Area 0 Area 50 5113 10111 10106 10101 10112 10107 5108 5114 5109 5115 5110 51045105 T-V129T-V220 Area 100 Area 150 Area 250Area 350 20301203022030320304 2030520306 10307 20308 53115312 3313 3315 3314 3316 Area 300 Lorry Shipments While Oil Lorry Black Oil Lorry LPG Larding Area IP Storage No. 2 Flare AS Loading Area 25012502 35063507 1508 SUL 356035613562 35643565 44544455 3452 3451 3563 3453 Measuring Facility Shipping Facility for Spherical Tanks 5503 3553 Area 500 Area 550 Area 450 N 202012020220203 202062020720208 2020420205 2020920210 T-V230 T-V219 Area 200 : Roof damaged : FRT : Maintenance : CFRT : Roof sunken Appendix 2 Hokkaido Refinery: Outline of Damage to Tanks (Site Plan) Tank with outbreak of fire on 28th

11 2. Outline of Tank Fire - #3’6 - -Incident was happened immediately after the Earthquake. -Because of the sloshing, crude oil was overflowed on the tank roof and dike. Ignition source would be “Electric Sparks caused by fractures of electric cable” or “Electric Sparks from collision of floating roof and measurement cabin or fall of measurement cabin”.

12 Electric spark Measurement cabin in a normal state (reference) Measurement Cabin Pontoon Gauge Pole Collision electric cable Measurement cabin fell on the floating roof where measurement cabin stood Sloshing height approx. 3.1 m ( calculated measure ) Height of collision between the pontoon’s outer rim and the base of the measurement cabin: approx. 2.9m Deck Plate Appendix 3 Main Damaged Sections on Floating Roof of Crude Oil 30006 Tank Over flow Collision

13 2. Outline of Tank Fire - #3’63 - -Incident was happened 2days after of the earthquake. -Because of the sloshing, the floating roof was completely sunken. Foam was continuously applied after the earthquake to prevent from contact between naphtha and air, but strong wind broke the foam blanket in the morning of 28 th Sep.

14 Measurement cabin Naphtha Roof completely fell into fuel Fuel level : 18.5m Distance from top of tank to fuel surface : 5.9m Wind: South south east 7.3m/s, Temperature: 16.9 degC Foam seems to have been blown away to direction of 160° Ripples seem to have been caused by strong wind 180 ゚ 90 ゚ 270 ゚ 0゚0゚ Fixed foam system (total 7 spots) Boundaries of foam at about 10:45 of ignition (appears to have been 1/3 – 1/4) Boundaries of foam at about 10:35 (appears to have been 3/4) Appendix 4 Situation in Naphtha #30063 Tank before Ignition Point of ignition We had been doing foam application from fixed foam system from 26th. But the foam blanket was broken by strong wind in the morning of 28th. The foam application was tried again, but the wind was too strong to keep the foam blanket. Ignition occurred after about 10 mins. #30063 tank -Content: Naphtha -Diameter: 42.7m

15 2. Outline of Tank Fire - Video - - Japanese National Broadcast made a TV programme about Idemitsu Incident. - #3’6 3min 17- 4min 30 -#3’63 5min 59-6min 20, 10min 05 11min 54 -Sloshing, etc 15min 22 - 22min 10

16 AGENDA 1.Company Profile 2.Outline of Tank Fire 3.Conclusion

17 1. We lowered fuel operation levels of 3 Refineries (Hokkaido, Chiba and Aichi), total volume of 600,000 kl, taking into consideration their respective velocity response spectrum. 2. We removed structures on tank, in particular, all measurement cabins in Hokkaido Refinery. 3. We are reinforcing the floating roofs against earthquakes. (1) 100,000 kl tanks in Hokkaido Refinery are changed to double-deck structure. (2) For other tanks, the pontoons of floating roof are reinforced. 4. We purchased 2 big monitors, 30,000 l/min and 11,000 l/min, in Hokkaido Refinery.

18 Thank you for your attentions.

19 End of Report


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