Environmental Impacts on the Supply Chain

Environmental Data of Refineries and Complexes

Hokkaido Refinery

  Unit FY2017 FY2018 FY2019 FY2020
Crude oil throughput thousand kl 8,235 6,750 7,768 4,598
Equivalent in crude oil thousand kl 608 522 578 373
Unit energy consumption Energy
usage(crude oil
equivalent)(l)
/Atmospheric
distillation
equipment
converted
throughput(kl)		 8.46 8.73 8.24 8.98
Seawater thousand t 138,293 121,659 128,835 111,202
Industrial water thousand t 11,114 12,693 12,484 12,608
Tap water thousand t - - 60 65
Underground water thousand t - - 356 279
CO2 emissions thousand tCO2 990 894 1,664 1,124
SOx t 2,086 1,877 2,397 1,612
NOx t 1,231 1,037 1,224 867
Soot/dust t 5.3 15.3 8.0 6.0
Wastewater thousand t 149,407 134,352 141,380 123,875
COD t 36.26 31 33.0 18
Total nitrogen (TN) t - - - -
Total phosphorus (TP) t - - - -
Total waste t 12,003 9,155 9,584 10,571
Reduced by intermediate treatment t 1,026 1,800 1,006 1,763
Recycled t 10,973 7,351 8,575 7,412
Final disposal (landfill) t 4 4 3 3
出光興産, DFF Inc.

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

  Unit FY2017 FY2018 FY2019 FY2020
Crude oil throughput thousand kl 10,321 11,122 9,351 9,937
Petrochemical product
manufacturing (ethylene equivalent)		 thousand t - 2,056 1,661 1,776
Equivalent in crude oil thousand kl 833 1,555 1,315 1,426
Unit energy consumption Energy
usage(crude oil
equivalent)(l)
/Atmospheric
distillation
equipment
converted
throughput(kl)		 8.65 8.42 9.11 8.97
kL/t - 0.317 0.345 0.34
Seawater thousand t 349,977 503,972 418,108 468,093
Industrial water thousand t 18,131 22,513 21,064 19,641
Tap water thousand t - - - -
Underground water thousand t - - 364 320
CO2 emissions thousand tCO2 1,727 3,148 3,072 3,455
SOx t 2,205 2,579 2,541 3,268
NOx t 1,440 2,752 2,342 2,478
Soot/dust t 150 160 128 125
Wastewater thousand t 368,108 524,140 437,723 486,602
COD t 30 40 40 37
Total nitrogen (TN) t 57 80 59 67
Total phosphorus (TP) t 0.4 0.6 0.5 0.4
Total waste t 78,087 66,850 51,448 76,711
Reduced by intermediate treatment t 20,149 21,213 18,993 17,534
Recycled t 57,916 45,630 32,470 59,170
Final disposal (landfill) t 22 7 27 6
出光興産, DFF Inc.

Chiba Complex (Petrochemicals)

  Unit FY2017 FY2018 FY2019 FY2020
Petrochemical product
manufacturing (ethylene equivalent)		 thousand t 1,838 Aggregate in
Chiba Complex		 Aggregate in
Chiba Complex		 Aggregate in
Chiba CompleX
Equivalent in crude oil thousand kl 611
Unit energy consumption kL/t 0.332
Seawater thousand t 109,444
Industrial water thousand t 3,303
CO2 emissions thousand tCO2 1,274
SOx t 16
NOx t 804
Soot/dust t 8
Wastewater thousand t 110,987
COD t 9
Total nitrogen (TN) t 12
Total phosphorus (TP) t 0.1
Total waste t 8,730
Reduced by intermediate treatment t 3,200
Recycled t 5,524
Final disposal (landfill) t 6
出光興産, DFF Inc.

Aichi Refinery (currently Aichi Complex)

  Unit FY2017 FY2018 FY2019 FY2020
Crude oil throughput thousand kl 7,049 7,699 8,577 7,474
Equivalent in crude oil thousand kl 586 608 681 667
Unit energy consumption Energy
usage(crude oil
equivalent)(l)
/Atmospheric
distillation
equipment
converted
throughput(kl)		 9.40 9.76 8.51 9.24
Seawater thousand t 207,469 242,389 241,254 239,380
Industrial water thousand t 12,438 12,375 12,396 12,256
Tap water thousand t - - 103 114
Underground water thousand t - - - -
CO2 emissions thousand tCO2 1,146 1,187 1,870 1,851
SOx t 851 789 904 884
NOx t 1,270 1,267 1,278 1,240
Soot/dust t 52 38 60 44
Wastewater thousand t 219,907 254,764 253,753 251,750
COD t 6 8 11 11
Total nitrogen (TN) t 6 11 8 13
Total phosphorus (TP) t 0.3 0.4 0.9 1.2
Total waste t 81,988 99,762 94,556 80,775
Reduced by intermediate treatment t 47,787 64,417 59,115 51,124
Recycled t 34,149 35,321 35,410 28,707
Final disposal (landfill) t 52 24 31 26
出光興産, DFF Inc.

Tokuyama Complex

  Unit FY2017 FY2018 FY2019 FY2020
Petrochemical product
manufacturing (ethylene equivalent)		 thousand t 1,986 1,814 1,888 1,536
Equivalent in crude oil thousand kl 958 898 920 778
Unit energy consumption kl/t 0.474 0.486 0.487 0.51
Seawater thousand t 452,264 420,355 431,407 397,463
Industrial water thousand t 13,069 11,962 10,554 11,502
Tap water thousand t - - 193 201
Underground water thousand t - - - -
CO2 emissions thousand tCO2 2,051 1,928 2,002 1,712
SOx t 835 821 1,006 815
NOx t 1,712 1,583 1,624 1,423
Soot/dust t 15 18 14 14
Wastewater thousand t 465,332 432,508 442,154 409,166
COD t 23 18 13 16
Total nitrogen (TN) t 19 14 17 18
Total phosphorus (TP) t 0.4 0.5 0.4 0.3
Total waste t 34,573 34,061 31,786 24,924
Reduced by intermediate treatment t 19,091 20,175 19,046 15,001
Recycled t 14,621 12,537 12,187 9,920
Final disposal (landfill) t 861 1,348 553 2
出光興産, DFF Inc.