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Chiba Refinery

Site Profile (as of March 31, 2007)

  • Address
    2 Goi Kaigan, Ichihara, Chiba
  • Start-up
    February 1963
  • Total area
    1,168,766 m2
  • Employees
    355
  • Capacity
    240,000 barrels/day
  • ISO 9001
    December 25, 1996
  • ISO 14001
    March 13, 1998
Number of visitors to the refinery in fiscal 200626 visits; 352 people Working hours with no accidents (as of December 2006) 187 thousands hours PCB custody status

High voltage condensers
High voltage transformers
Others

65 units
25 units

Chiba Refinery
Chiba RefineryMAP

Number of Staff holding Environmental Qualifications (as of March 31, 2007)

Air pollution control manager 17
Water pollution control manager 19
Noise pollution control manager 4
Dioxin pollution control manager 2
Hazardous materials officer (Class A & B) 587
High-pressure gas production safety manager (Class A & B) 233
Qualified person for energy management 18
Specially-controlled industrial waste manager 1
Engineering manager for disposal facilities of industrial waste 1
Boiler operator (Special grade) 4
Boiler operator (1st & 2nd grade) 312

Regulated Pollutants

Air pollutants

Pollutant Standard Actual Performance in FY2006
Maximum Average
NOx (m3N/hour; total pollutant load control) 141.1 110.3 79.4
SOx (m3N/hour; total pollutant load control) 157.5 127.9 74.4
Particulate (boiler; g/m3N) 0.07 0.037 0.020

Water pollutants

Pollutant Standard Actual Performance in FY2006
Maximum Average
COD (kg/day; total pollutant load control) 244 167.5 110.7
COD (mg/l) 25 7.7 4.3
SS (mg/l) 50 6.8 5.8
Oil content (mg/l) 3 0.6 0.6
Nitrogen (kg/day; total pollutant load control) 222 173.6 92.0
Nitrogen (mg/l) (10) 1.5 1.2
Phosphorus (kg/day; total pollutant load control) 12.5 5.6 2.2
Phosphorus (mg/l) (1) 0.12 0.07
Phenols (mg/l) 0.5 Below measurement threshold
Benzene (mg/l) 0.1 Below measurement threshold
Note: Values in ( ) indicate daily average.

Environmental Performance (PRTR)

PRTR Listed Substances Release Volume Transfer Volume
Air Water Soil Total
Asbestos (kg/year) 0 0 0 0 1,700
Ethylbenzene (kg/year) 140 0 0 140 0
Xylene (kg/year) 530 0 0 530 0
1,3,5-trimethylbenzene (kg/year) 2.2 0 0 2.2 0
Toluene (kg/year) 3,400 0 0 3,400 0
Benzene (kg/year) 350 0 0 350 0
Dioxins (mg-TEQ/year) 0.57 18 0 19 8.6

Note: In addition to above, we treat 2-aminoethanol, ethylene glycol, ethylene glycol monomethyl ether, cobalt and its compounds, nickel compounds, molybdenum and its compounds, cresol, and cyclohexylamine, tetrachloroethylene, nonylphenol, hydrazine and alkyl ether over 1,000 kg per year, the release and transfer volumes are 0 kg per year for all substances.

Environmental Performance (energy, etc.)

Energy Consumption

Energy Consumption

CO2 Emissions

CO2 Emissions

Sulfur Oxide (SOx) and Nitrogen Oxides (NOx) Emissions

Sulfur Oxide (SOx) and Nitrogen Oxides (NOx) Emissions

COD Discharge

COD Discharge

Industrial Waste

Industrial Waste

Environmental Accounting

Environmental conservation costs

 
Category and Key Activity FY2006
Investment Expense
1. Business area costs Pollution prevention 136 1,548
  Global environment conservation 134 3,214
  Resource circulation 1 404
2. Upstream and downstream costs Green purchasing 0 0
  Reducing environmental impact of products 2,226 28,326
  Reducing sulfur content of products (2,169) (24,200)
  Replacement of toxic substances in gasoline (57) (4,125)
3. Administration costs   0 125
4. Research and development costs   0 0
5. Social activity costs   0 1
6. Environmental remediation costs   0 0
Total 2,497 33,617
Note: Recycled paper purchased: 1 million yen

Economic benefits

 
Details of Benefits FY2006
Energy conservation (cogeneration) -263
Total -263

Environmental conservation benefits

Item FY2006
Concentration / unit value Environmental impacts
(1)Benefits corresponding to worksite costs    
Resources input into business activities    
Energy input 8.56 (kl-crude/1,000kl) 25,231 (TJ)
Water input 144 (kg/kl) 10,964 (1,000t)
Related to environmental impacts and wastes generated by business activities    
Emissions to air CO2 23.32 (kg-CO2/kl) 1,771 (1,000t-CO2)
  SOx 24.5 (g/kl) 1,864 (t)
  NOx 18.8 (g/kl) 1,428 (t)
  Benzene 0.00 (g/kl) 0.35 (t)
Discharge to water COD 0.53 (g/kl) 40.4 (t)
Industrial waste Generated 255 (g/kl) 19,356 (t)
  Recycled 85 (g/kl) 6,480 (t)
  Landfill 2 (g/kl) 179 (t)
(2)Benefits related to upstream and downstream costs    
Benefits of reducing environmental impact of products    
Reducing sulfur content of products (sulfur content : mass %) (potential SOx emissions : t)
  High octane gasoline 0.0005 3
  Regular gasoline 0.0005 14
  Naphtha 0.0282 506
  Jet fuel oil 0.0172 274
  Kerosene 0.0005 7
  Diesel fuel oil 0.0007 24
  Heavy fuel oil A 0.4242 7,506
  Heavy fuel oil C 1.0035 20,106
  LPG 0.0003 2
  Total 0.1789 28,442
Reducing benzene in gasoline 0.4487(vol %) 8,780 (t)
Reduction of CO2 emissions from product use 2.4854 (t-CO2/kl) 25,330 (1,000t-CO2)

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