Environmental Impacts in the Supply Chain

Environmental Data of Refineries and Complexes

Hokkaido Refinery

  Unit FY2014 FY2015 FY2016 FY2017 FY2018
Crude oil throughput thousand kl 7,305 8,183 7,450 8,235 6,750
Equivalent in crude oil thousand kl 530 572 549 608 522
Unit energy consumption Energy
usage(crude oil
equivalent)(l)
/Atmospheric
distillation
equipment
converted
throughput(kl)
8.08 7.90 8.21 8.46 8.73
Seawater thousand t 121,982 116,731 116,515 138,293 121,659
Water thousand t 10,033 10,872 10,234 11,114 12,693
CO2 emissions thousand tCO2 888 959 891 990 894
SOx t 3,735 3,312 2,809 2,086 1,877
NOx t 1,203 1,338 1,202 1,231 1,037
Soot/dust t 8.7 6.1 2.0 5.3 15.3
Wastewater thousand t 132,015 127,603 126,749 149,407 134,352
COD t 27.3 33.2 29.8 36.26 31
Total nitrogen (TN) t - - - - -
Total phosphorus (TP) t - - - - -
Total waste t 11,969 9,612 12,372 12,003 9,155
Reduced by intermediate treatment t 1,419 900 1,526 1,026 1,800
Recycled t 10,536 8,709 10,842 10,973 7,351
Final disposal (landfill) t 14 3 4 4 4
出光昭和シェル, DFF Inc.

Chiba Complex (Only oil refining until FY2017)

  Unit FY2014 FY2015 FY2016 FY2017 FY2018
Crude oil throughput thousand kl 10,936 9,678 11,310 10,321 11,122
Petrochemical product
manufacturing (ethylene equivalent)
thousand t - - - - 2,056
Equivalent in crude oil thousand kl 873 791 904 833 1,555
Unit energy consumption Energy
usage(crude oil
equivalent)(l)
/Atmospheric
distillation
equipment
converted
throughput(kl)
8.64 8.79 8.53 8.65 8.42
kL/t - - - - 0.317
Seawater thousand t 327,124 297,475 355,018 349,977 503,972
Water thousand t 19,034 18,494 18,311 18,131 22,513
CO2 emissions thousand tCO2 1,825 1,687 1,380 1,727 3,148
SOx t 2,151 1,975 2,460 2,205 2,579
NOx t 1,480 1,158 1,634 1,440 2,752
Soot/dust t 155 149 206 150 160
Wastewater thousand t 346,158 315,969 373,329 368,108 524,140
COD t 27 28 32 30 40
Total nitrogen (TN) t 71 54 60 57 80
Total phosphorus (TP) t 0.3 0.2 0.3 0.4 0.6
Total waste t 89,574 94,097 83,181 78,087 66,850
Reduced by intermediate treatment t 25,965 23,012 19,138 20,149 21,213
Recycled t 63,597 71,077 64,038 57,916 45,630
Final disposal (landfill) t 12 8 5 22 7
出光昭和シェル, DFF Inc.

Chiba Complex (Petrochemicals)

  Unit FY2014 FY2015 FY2016 FY2017 FY2018
Petrochemical product
manufacturing (ethylene equivalent)
thousand t 1,938 1,876 2,054 1,838 Aggregate in
Chiba Complex
Equivalent in crude oil thousand kl 628 598 662 611
Unit energy consumption kL/t 0.324 0.319 0.322 0.332
Seawater thousand t 127,202 113,898 127,806 109,444
Water thousand t 3,462 3,300 3,447 3,303
CO2 emissions thousand tCO2 1,317 1,252 1,379 1,274
SOx t 16 14 17 16
NOx t 955 843 913 804
Soot/dust t 8 18 6 8
Wastewater thousand t 128,709 115,315 129,233 110,987
COD t 8 8 8 9
Total nitrogen (TN) t 10 11 11 12
Total phosphorus (TP) t 0.1 0.1 0.1 0.1
Total waste t 11,679 13,518 8,842 8,730
Reduced by intermediate treatment t 716 770 2,219 3,200
Recycled t 10,960 12,726 6,613 5,524
Final disposal (landfill) t 3 22 10 6
出光昭和シェル, DFF Inc.

Aichi Refinery

  Unit FY2014 FY2015 FY2016 FY2017 FY2018
Crude oil throughput thousand kl 8,825 8,899 8,435 7,049 7,699
Equivalent in crude oil thousand kl 681 685 676 586 608
Unit energy consumption Energy
usage(crude oil
equivalent)(l)
/Atmospheric
distillation
equipment
converted
throughput(kl)
8.24 8.31 8.70 9.40 9.76
Seawater thousand t 233,581 228,914 233,974 207,469 242,389
Water thousand t 12,474 12,339 12,379 12,438 12,375
CO2 emissions thousand tCO2 1,301 1,299 1,291 1,146 1,187
SOx t 955 867 845 851 789
NOx t 1,302 1,308 1,257 1,270 1,267
Soot/dust t 48 54 53 52 38
Wastewater thousand t 246,055 241,253 246,353 219,907 254,764
COD t 9 8 8 6 8
Total nitrogen (TN) t 7 6 6 6 11
Total phosphorus (TP) t 0.7 0.5 0.3 0.3 0.4
Total waste t 95,850 95,850 80,904 81,988 99,762
Reduced by intermediate treatment t 52,364 53,997 46,398 47,787 64,417
Recycled t 43,464 41,835 34,493 34,149 35,321
Final disposal (landfill) t 22 18 13 52 24
出光昭和シェル, DFF Inc.

Tokuyama Complex

  Unit FY2014 FY2015 FY2016 FY2017 FY2018
Petrochemical product
manufacturing (ethylene equivalent)
thousand t 1,464 1,901 1,656 1,986 1,814
Equivalent in crude oil thousand kl 759 909 835 958 898
Unit energy consumption kl/t 0.518 0.478 0.504 0.474 0.486
Seawater thousand t 389,337 448,850 397,790 452,264 420,355
Water thousand t 14,918 15,521 13,741 13,069 11,962
CO2 emissions thousand tCO2 1,680 1,981 1,816 2,051 1,928
SOx t 1,109 936 927 835 821
NOx t 1,446 1,800 1,557 1,712 1,583
Soot/dust t 12 16 17 15 18
Wastewater thousand t 404,255 464,371 411,531 465,332 432,508
COD t 15 17 19 23 18
Total nitrogen (TN) t 12 11 15 19 14
Total phosphorus (TP) t 0.4 0.3 0.4 0.4 0.5
Total waste t 27,181 30,791 28,278 34,573 34,061
Reduced by intermediate treatment t 14,586 19,666 17,743 19,091 20,175
Recycled t 12,570 11,092 10,430 14,621 12,537
Final disposal (landfill) t 25 33 105 861 1,348
出光昭和シェル, DFF Inc.