Environmental Impacts on the Supply Chain

Environmental Data of Refineries and Complexes

Hokkaido Refinery

  Unit FY2016 FY2017 FY2018 FY2019
Crude oil throughput thousand kl 7,450 8,235 6,750 7,768
Equivalent in crude oil thousand kl 549 608 522 578
Unit energy consumption Energy
usage(crude oil
equivalent)(l)
/Atmospheric
distillation
equipment
converted
throughput(kl)
8.21 8.46 8.73 8.24
Seawater thousand t 116,515 138,293 121,659 128,835
Water thousand t 10,234 11,114 12,693 12,484
CO2 emissions thousand tCO2 891 990 894 1,664
SOx t 2,809 2,086 1,877 2,397
NOx t 1,202 1,231 1,037 1,224
Soot/dust t 2.0 5.3 15.3 8.0
Wastewater thousand t 126,749 149,407 134,352 141,380
COD t 29.8 36.26 31 33.0
Total nitrogen (TN) t - - - -
Total phosphorus (TP) t - - - -
Total waste t 12,372 12,003 9,155 9,584
Reduced by intermediate treatment t 1,526 1,026 1,800 1,006
Recycled t 10,842 10,973 7,351 8,575
Final disposal (landfill) t 4 4 4 3
出光興産, DFF Inc.

Chiba Complex (data until 2017 is applicable for oil refining only)

  Unit FY2016 FY2017 FY2018 FY2019
Crude oil throughput thousand kl 11,310 10,321 11,122 9,351
Petrochemical product
manufacturing (ethylene equivalent)
thousand t - - 2,056 1,661
Equivalent in crude oil thousand kl 904 833 1,555 1,315
Unit energy consumption Energy
usage(crude oil
equivalent)(l)
/Atmospheric
distillation
equipment
converted
throughput(kl)
8.53 8.65 8.42 9.11
kL/t - - 0.317 0.345
Seawater thousand t 355,018 349,977 503,972 418,108
Water thousand t 18,311 18,131 22,513 21,064
CO2 emissions thousand tCO2 1,380 1,727 3,148 3,072
SOx t 2,460 2,205 2,579 2,541
NOx t 1,634 1,440 2,752 2,342
Soot/dust t 206 150 160 128
Wastewater thousand t 373,329 368,108 524,140 437,723
COD t 32 30 40 40
Total nitrogen (TN) t 60 57 80 59
Total phosphorus (TP) t 0.3 0.4 0.6 0.5
Total waste t 83,181 78,087 66,850 51,448
Reduced by intermediate treatment t 19,138 20,149 21,213 18,993
Recycled t 64,038 57,916 45,630 32,470
Final disposal (landfill) t 5 22 7 27
出光興産, DFF Inc.

Chiba Complex (Petrochemicals)

  Unit FY2016 FY2017 FY2018 FY2019
Petrochemical product
manufacturing (ethylene equivalent)
thousand t 2,054 1,838 Aggregate in
Chiba Complex
Aggregate in
Chiba Complex
Equivalent in crude oil thousand kl 662 611
Unit energy consumption kL/t 0.322 0.332
Seawater thousand t 127,806 109,444
Water thousand t 3,447 3,303
CO2 emissions thousand tCO2 1,379 1,274
SOx t 17 16
NOx t 913 804
Soot/dust t 6 8
Wastewater thousand t 129,233 110,987
COD t 8 9
Total nitrogen (TN) t 11 12
Total phosphorus (TP) t 0.1 0.1
Total waste t 8,842 8,730
Reduced by intermediate treatment t 2,219 3,200
Recycled t 6,613 5,524
Final disposal (landfill) t 10 6
出光興産, DFF Inc.

Aichi Refinery

  Unit FY2016 FY2017 FY2018 FY2019
Crude oil throughput thousand kl 8,435 7,049 7,699 8,577
Equivalent in crude oil thousand kl 676 586 608 681
Unit energy consumption Energy
usage(crude oil
equivalent)(l)
/Atmospheric
distillation
equipment
converted
throughput(kl)
8.70 9.40 9.76 8.51
Seawater thousand t 233,974 207,469 242,389 241,254
Water thousand t 12,379 12,438 12,375 12,396
CO2 emissions thousand tCO2 1,291 1,146 1,187 1,870
SOx t 845 851 789 904
NOx t 1,257 1,270 1,267 1,278
Soot/dust t 53 52 38 60
Wastewater thousand t 246,353 219,907 254,764 253,753
COD t 8 6 8 11
Total nitrogen (TN) t 6 6 11 8
Total phosphorus (TP) t 0.3 0.3 0.4 0.9
Total waste t 80,904 81,988 99,762 94,556
Reduced by intermediate treatment t 46,398 47,787 64,417 59,115
Recycled t 34,493 34,149 35,321 35,410
Final disposal (landfill) t 13 52 24 31
出光興産, DFF Inc.

Tokuyama Complex

  Unit FY2016 FY2017 FY2018 FY2019
Petrochemical product
manufacturing (ethylene equivalent)
thousand t 1,656 1,986 1,814 1,888
Equivalent in crude oil thousand kl 835 958 898 920
Unit energy consumption kl/t 0.504 0.474 0.486 0.487
Seawater thousand t 397,790 452,264 420,355 431,407
Water thousand t 13,741 13,069 11,962 10,554
CO2 emissions thousand tCO2 1,816 2,051 1,928 2,002
SOx t 927 835 821 1,006
NOx t 1,557 1,712 1,583 1,624
Soot/dust t 17 15 18 14
Wastewater thousand t 411,531 465,332 432,508 442,154
COD t 19 23 18 13
Total nitrogen (TN) t 15 19 14 17
Total phosphorus (TP) t 0.4 0.4 0.5 0.4
Total waste t 28,278 34,573 34,061 31,786
Reduced by intermediate treatment t 17,743 19,091 20,175 19,046
Recycled t 10,430 14,621 12,537 12,187
Final disposal (landfill) t 105 861 1,348 553
出光興産, DFF Inc.