Appendices of Final Screening Assessment

Petroleum Sector Stream Approach

Heavy Fuel Oils
[Industry-Restricted]

Chemical Abstracts Service Registry Numbers

64741-75-9
68783-08-4
70592-76-6
70592-77-7
70592-78-8

Environment Canada
Health Canada
July 2013

Appendices

Appendix 1: Petroleum substance groupings

Table A1.1. Description of the nine groups of petroleum substances
Group[a]DescriptionExample
Crude oilsComplex combinations of aliphatic and aromatic hydrocarbons and small amounts of inorganic compounds, naturally occurring under the earth’s surface or under the seafloorCrude oil
Petroleum and refinery gasesComplex combinations of light hydrocarbons primarily from C1–C5Propane
Low boiling point naphthasComplex combination of hydrocarbons primarily from C4–C12Gasoline
Gas oilsComplex combination of hydrocarbons primarily from C9–C25Diesel
Heavy fuel oilsComplex combination of heavy hydrocarbons primarily from C11–C50Fuel Oil No. 6
Base oilsComplex combination of hydrocarbons primarily from C15–C50Lubricating oils
Aromatic extractsComplex combination of primarily aromatic hydrocarbons from C15–C50Feedstock for benzene production
Waxes, slack waxes and petrolatumComplex combination of primarily aliphatic hydrocarbons from C12–C85Petrolatum
Bitumen or vacuum residuesComplex combination of heavy hydrocarbons having carbon numbers greater than C25Asphalt
[a] These groups were based on classifications developed by Conservation of Clean Air and Water in Europe (CONCAWE) and a contractor’s report presented to the Canadian Petroleum Products Institute (Simpson 2005).

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Appendix 2: Physical and chemical data tables for industry-restricted HFOs

Table A2.1. Substance identity of industry-restricted HFOs
CAS RN and DSL Name64741-75-9
Residues (petroleum), hydrocracked
NCI 2006
CAS RN and DSL Name68783-08-4
Gas oils (petroleum), heavy atmospheric
NCI 2006
CAS RN and DSL Name70592-76-6
Distillates (petroleum), intermediate vacuum
NCI 2006
CAS RN and DSL Name70592-77-7
Distillates (petroleum), light vacuum
NCI 2006
CAS RN and DSL Name70592-78-8
Distillates (petroleum), vacuum
NCI 2006
Chemical groupPetroleum – HFOs 
Major componentsAromatic and aliphatic hydrocarbons CONCAWE 1998
Carbon rangeCAS RN 64741-75-9greater than C20CONCAWE 1998
Carbon rangeCAS RN 68783-08-4C7–C35CONCAWE 1998
Carbon rangeCAS RN 70592-76-6C14–C42CONCAWE 1998
Carbon rangeCAS RN 70592-77-7C11–C35CONCAWE 1998
Carbon rangeCAS RN 70592-78-8C15–C50CONCAWE 1998
Approximate ratio of aromatics to non‑aromatics50:50API 2004
Three- to Seven-ring polynuclear aromatic hydrocarbons (PAHs) (weight %)6–20%CONCAWE 1998


Table A2.2. Boiling point ranges for HFOs (CONCAWE 1998)
CAS RNBoiling point range (°C)Carbon rangeReference
64741-75-9greater than 350greater than C20CONCAWE 1998; API 2004
68783-08-4121–510C7–C35CONCAWE 1998; API 2004
70592-76-6250–545C14–C42CONCAWE 1998; API 2004
70592-77-7250–545C11–C35CONCAWE 1998; API 2004
70592-78-8270–600C15–C50CONCAWE 1998; API 2004


Table A2.3. Representative structures attributed to each CAS RN

Alkanes
AlkanesBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C9151 Yes   
C15271 YesYesYesYes
C20343 YesYesYesYes
C30450YesYesYesYesYes
C50548Yes   Yes


Isoalkanes
IsoalkanesBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C9141 Yes   
C15250 YesYesYes 
C20326 YesYesYesYes
C30350YesYesYesYesYes
C50548Yes   Yes


One-ring cycloalkanes
One-ring cycloalkanesBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C9144 Yes   
C15282 YesYesYes 
C20360YesYesYesYesYes
C30421YesYesYesYesYes
C50699Yes    


Two-ring cycloalkanes
Two-ring cycloalkanesBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C9167 Yes   
C15244 Yes   
C20339 YesYesYesYes
C30420YesYesYesYesYes
C50687Yes    


Polycycloalkanes
PolycycloalkanesBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C14255 YesYesYes 
C18316 YesYesYesYes
C22365YesYesYesYesYes


One-ring aromatics
One-ring aromaticsBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C9165 Yes   
C15281 YesYesYesYes
C20359YesYesYesYesYes
C30437YesYesYesYesYes
C50697Yes    


Cycloalkane monoaromatics
Cycloalkane monoaromaticsBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C10208 Yes   
C15285 YesYesYesYes
C20351YesYesYesYesYes


Two-ring aromatics
Two-ring aromaticsBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C15308 YesYesYesYes
C20373YesYesYesYesYes
C30469YesYesYesYesYes
C50722Yes    


Cycloalkane diaromatics
Cycloalkane diaromaticsBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C12279 YesYesYesYes
C15321 YesYesYesYes
C20374YesYesYesYesYes


Three-ring aromatics
Three-ring aromaticsBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C15350 YesYesYesYes
C20398YesYesYesYesYes
C30493YesYesYesYesYes
C50746Yes    


Four-ring aromatics
Four-ring aromaticsBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C16384YesYesYesYesYes
C20480YesYesYesYesYes


Five-ring aromatics
Five-ring aromaticsBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C20495YesYesYesYesYes
C30545Yes YesYesYes


Six- ring aromatics
Six- ring aromaticsBoiling point (°C)CAS RN
64741-75-9
CAS RN
68783-08-4
CAS RN
70592-76-6
CAS RN
70592-77-7
CAS RN
70592-78-8
C22greater than 500YesYesYesYesYes


Table A2.4. Physical-chemical properties for representative structures of HFOs[a]

Alkanes
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C9
n-nonane
(111-84-2)
68783-08-4151
(expt.)
−54
(expt.)
593
(expt.)
 
C15
pentadecane
(629-62-9)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8271
(expt.)
120.03 
C20
eicosane
(112-95-8)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8343
(expt.)
37
(expt.)
6×10−48×10−4
C30
triacontane
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8450 (expt.)65.8 (expt.)4×10−99×10−9
C5064741-75-9, 68333-22-2, 68478-17-1, 70592-78-8548
(expt.)
88
(expt.)
2×10−78×10−7


Isoalkanes
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C9
2,3-dimethylheptane
(3074-71-3)
68783-08-4141
(expt.)
−116
(expt.)
1×103 
C15
2-methyltetra-
decane
(1560-95-8)
68783-08-4, 70592-76-6, 70592-77-72501.55.8 
C20
3-methyl-
nonadecane
(6418-45-7)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8326 400.10.1
C30
hexamethyl-
tetracosane
(111-01-3)
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8350 (expt.)−38 (expt.)0.04 
C5064741-75-9, 70592-78-85482891×10−131×10−9


One-ring cycloalkanes
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C9
1,2,3-trimethyl-
cyclohexane
(1678-97-3)
68783-08-4144
(expt.)
−66.9
(expt.)
649 
C15
nonylcyclo-
hexane
(2883-02-5)
68783-08-4, 70592-76-6, 70592-77-7282
(expt.)
−10
(expt.)
1.2
(expt.)
 
C20
tetradecyl-
cyclohexane
(1795-18-2)
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8360
(expt.)
24
(expt.)
0.020.02
C30
1,5-dimethyl-1-(3,7,11,15-tetramethyl-
octadecyl)-cyclohexane
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-84211032×10−49×10−4
C5064741-75-9, 68333-22-2, 68478-17-16993001×10-133×10-10


Two-ring cycloalkanes
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C9
cis-bicyclo-
nonane
(4551-51-3)
68783-08-4167
(expt.)
−53
(expt.)
320.0 
C15
2-isopenta-
decylin
68783-08-4244232.4 
C20
2,4-dimethyl-
octyl-2-decalin
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8339410.020.1
C30
2,4,6,10,14- pentamethyl-
dodecyl-
2-decalin
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-84201060.00010.0009
C5064741-75-96873001×10−133×10−10


Polycycloalkanes
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C14
hydrophenanthrene
68783-08-4
70592-76-6
70592-77-7
255214.5 
C18
hydrochrysene
68783-08-4
70592-76-6
70592-77-7
70592-78-8
31666.40.0040.03
C22
hydropicene
64741-75-9
68783-08-4
70592-76-6
70592-77-7
70592-78-8
3651170.0030.002


One-ring aromatics
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C9
ethylmethyl-
benzene
(25550-14-5)
68783-08-4165.2 (expt.)−80.8
(expt.)
384.0
(expt.)
 
C15
2-nonyl-
benzene
(1081-77-2)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8281
(expt.)
−24
(expt.)
0.7
(expt.)
 
C20
tetradecyl-
benzene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8359
(expt.)
16
(expt.)
 0.008
(expt.)
0.003
C30
1-benzyl-4,8,12,16- tetramethyl-
eicosane
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-84371311×10−51×10−4
C5064741-75-96973041×10−133×10−11


Cycloalkane monoaromatics
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C10
tetralin (tetrahydro- naphthalene)
(119-64-2)
68783-08-4207.6 (expt.)-35.7 (expt.)49.1 (expt.)49.1 (expt.)
C1568783-08-4, 70592-76-6, 70592-77-7, 70592-78-8284.850.90.340.58
C20
ethyldodecahydro-chrysene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8351.3115.70.002790.016


Two-ring aromatics
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C15
4-isopropyl-
biphenyl
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8308440.06 
C20
2-isodecyl-
naphthalene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8373990.00070.007
C30
2-(4,8,14,18-tetramethyl-
hexadecyl)-naphthalene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-84691717×10−72×10−5
C5064741-75-97223161×10−136×10−12


Cycloalkane diaromatics
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C12
acenaphthene
(83-32-9)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8279 (expt.)93.4 (expt.)0.287 (expt.)1.36
C15
ethylfluorene
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-832189.50.020.085
C20
isoheptylfluorene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-83741190.0010.005


Three-ring aromatics
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C15
2-methyl-
phen-
anthrene
(2531-84-2)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8350
(expt.)
65
(expt.)
0.009 
C20
2-isohexyl-phenanthrene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-83981290.00010.002
C30
2-(2,4,10-trimethyl-
tridecyl)-phenanthrene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8493191.610×10−86×10−6
C5064741-75-97463491×10−131×10−12


Four-ring PAHs
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C16
fluoranthene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8384
(expt.)
107.8 (expt.)1×10−3
(expt.)
8×10−3
C20
benzo[k]-fluoranthene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8480
(expt.)
217
(expt.)
1×10−7
(expt.)
1×10−5


Five-ring PAHs
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C20
benzo[a]-pyrene
(50-32-8)
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8495
(expt.)
177
(expt.)
7×10−72×10−5
C30
dimethyl-
octylbenzo[a]-
pyrene
64741-75-9
70592-76-6, 70592-77-7, 70592-78-8
5452312×10−93×10−7


Six -ring PAHs
Chemical class, name (CAS RN)HFO representedBoiling point (°C)Melting point
(°C)
Vapour pressure
(Pa)[b]
Sub-cooled
liquid vapour pressure
(Pa)[c]
C22
benzo[ghi]-perylene
(191-24-2)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8greater than 500 (expt.)278
(expt.)
1×10−8
(expt.)
4×10−6
(expt.)

Table A2.4 cont. Physical-chemical properties for representative structures of HFOs[a]

Alkanes
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C9
n-nonane
(111-84-2)
68783-08-43×105
(expt.)
5.7
(expt.)
3.00.2
(expt.)
 
C15
pentadecane
(629-62-9)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-81×106
(expt.)
7.74.68×10−5
(expt.)
 
C20
eicosane
(112-95-8)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8113105.90.002
(expt.)
0.002
(expt.)
C30
triacontane
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-83×10415135×10−112×10−10
C5064741-75-9, 68333-22-2, 68478-17-1, 70592-78-8 25145×10−21 


Isoalkanes
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C9
2,3-dimethyl-heptane
(3074-71-3)
68783-08-44.3×1044.62.83.1 
C15
2-methyltetra-
decane
(1560-95-8)
68783-08-4, 70592-76-6, 70592-77-74×1057.64.50.003 
C20
3-methyl-
nonadecane
(6418-45-7)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8276105.81×10−50.13
C30
hexamethyl-
tetracosane
(111-01-3)
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-82×10915132×10−105×10−11
C5064741-75-9, 70592-78-8  13.86×10−213×10−18


One-ring cycloalkanes
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C9
1,2,3-trimethyl-
cyclohexane
(1678-97-3)
68783-08-42×1044.42.94.6 
C15
nonylcyclo-
hexane
(2883-02-5)
68783-08-4, 70592-76-6, 70592-77-76×1047.54.60.004
(expt.)
 
C20
tetradecyl-
cyclohexane
(1795-18-2)
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8639.95.91×10−50.1
C30
1,5-dimethyl-1-(3,7,11,15-tetramethyl-
octadecyl)- cyclohexane
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-82×10814.5133×10−102×10−9
C5064741-75-9, 68333-22-2, 68478-17-1 25142×10–21 


Two-ring cycloalkanes
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C9
cis-bicyclo-
nonane
(4551-51-3)
68783-08-42×1033.73.019.3 
C15
2-isopenta-
decylin
68783-08-42×1046.64.60.03 
C20
2,4-dimethyl-
octyl-2-decalin
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-819359.05.99×10−150.02
C30
2,4,6,10,14- pentamethyl-dodecyl-
2-decalin
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-84×10713.6122×10−91×10−8
C5064741-75-9 24145×10−20 


Polycycloalkanes
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C14
hydro-phenanthrene
68783-08-4
70592-76-6
70592-77-7
8×1035.24.40.5 
C18
hydrochrysene
68783-08-4
70592-76-6
70592-77-7
70592-78-8
6×1036.25.30.03 
C22
hydropicene
64741-75-9
68783-08-4
70592-76-6
70592-77-7
70592-78-8
4×1037.36.30.002 


One-ring aromatics
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C9
ethylmethyl-benzene
(25550-14-5)
68783-08-43243.6 (expt.)374.6
(expt.)
 
C15
2-nonyl-
benzene
(1081-77-2)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-842257.1
(expt.)
4.60.04 
C20
tetradecyl-
benzene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8498.95.94×10−40.02
C30
1-benzyl-4,8,12,16- tetramethyl-
eicosane
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-87.0×10513.5127×10−98×10−8
C5064741-75-9 24142×10−19 


Cycloalkane monoaromatics
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C10
tetralin (tetrahydro- naphthalene)
(119-64-2)
68783-08-4138 (expt.)3.5 (expt.)3.247 (expt.)6.6×10−6
C15
methyl-octahydro-phenanthrene
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-89395.44.40.371.8×10−9
C20
ethyl-dodecahydro-chyrsene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-817106.95.70.002744×10−10


Two-ring aromatics
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C15
4-isopropyl-
biphenyl
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8245.54.60.7 
C20
2-isodecyl-
naphthalene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-84208.15.90.0020.005
C30
2-(4,8,14,18-tetramethyl-
hexadecyl)-naphthalene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-810×10312.8113×10−88×10−7
C5064741-75-9 2313.91×10−18 


Cycloalkane diaromatics
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C12
acenaphthene
(83-32-9)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-85.953.92 (expt.)3.702.5341.30×10−6
C15
ethylfluorene
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-824.85.054.450.1989.7×10−9
C20
isoheptyl-fluorene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-81027.445.680.00091.47×10−9


Three-ring aromatics
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C15
2-methyl-
phen-
anthrene
(2531-84-2)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-86.54.9
(expt.)
4.50.3
(expt.)
 
C20
2-isohexyl- phenanthrene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-8107.45.98×10−40.05
C30
2-(2,4,10-trimethyl-
tridecyl)- phenanthrene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-83×10312101×10−85×10−7
C5064741-75-9 22145×10−198×10−16


Four-ring PAHs
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C16
fluoranthene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-80.9
(expt.)
5.24.50.26
(expt.)
 
C20
benzo[k]-fluoranthene
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-82.1×10-26.1
(expt.)
5.30.0008
(expt.)
 


Five-ring PAHs
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C20
benzo[a]-pyrene
(50-32-8)
64741-75-9, 68783-08-4, 70592-76-6, 70592-77-7, 70592-78-85×10−56
(expt.)
6.70.0020.1
C30
dimethyl-
octylbenzo[a]-
pyrene
64741-75-9
70592-76-6, 70592-77-7, 70592-78-8
5.110.99.51×10−71×10−5


Six -ring PAHs
Chemical class, name (CAS RN)HFO representedHenry’s Law constant (Pa·m3/mol)[d]Log K owLog K ocAqueous solubility
(mg/L)[e]
Sub-cooled
liquid solubility
(mg/L)[f]
C22
benzo[ghi]-perylene
(191-24-2)
68783-08-4, 70592-76-6, 70592-77-7, 70592-78-83×10−36.65.80.00026
(expt.)
 
[a] All values are modelled unless denoted with an (expt.) for experimental data.
[b] This is the maximum vapour pressure of the surrogate; the actual vapour pressure as a component of a mixture will be lower due to Raoult’s Law (the total vapour pressure of an ideal mixture is proportional to the sum of the vapour pressures of the mole fractions of each individual component). The lightest C9 and heaviest C50 representative structures were chosen to estimate a range of vapour pressures from the minimum to maximum values.
[c] Estimated sub-cooled liquid vapour pressures were obtained from AEROWIN (Version 1.01) in EPI Suite (2008). Sub-cooled liquid vapour pressures were only estimated for components determined to be solid at 25°C (i.e., greater than or equal to  C20).
[d] Henry’s Law constants for C20–C30 representative structures were calculated with HENRYWIN Version 3.10 from EPI Suite (2008), using both sub-cooled liquid solubility and sub-cooled liquid vapour pressure. Henry’s Law constants for C50 representative structures were not calculated, as sub-cooled liquid solubility data were not available. Solubility data gave anomalously high values for substances that have negligible solubility and volatility.
[e] Maximum water solubility was estimated for each surrogate based on its individual physical-chemical properties. The actual water solubility of a component in a mixture will be lower, as the total water solubility of an ideal mixture is proportional to the sum of the water solubilities of the mole fractions of each individual component (Banerjee 1984).
[f] Estimated sub-cooled liquid solubilities were obtained from the CONCAWE1462 database within PETROTOX (2009). The estimates contained within the database were calculated using the SPARC Performs Automated Reasoning in Chemistry (SPARC 2009). Sub-cooled liquid solubility values were only estimated for components determined to be solid at 25°C (i.e., greater than or equal to C20). Sub-cooled liquid solubility data were not available for the C50 components.

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Appendix 3: Measures designed to prevent, minimize or manage unintentional releases

For the Canadian petroleum industry, requirements at the provincial/territorial level typically prevent or manage the unintentional releases of petroleum substances and streams within a facility through the use of operating permits (SENES 2009).

At the federal level, unintentional releases of some petroleum substances are addressed under the Petroleum Refinery Liquid Effluent Regulations and guidelines in the Fisheries Act (Canada 2010). These regulations set the discharge limits of oil and grease, phenol, sulfides, ammonia nitrogen and total suspended matter, and lay out testing requirements for acute toxicity in the final petroleum effluents entering Canadian waters.

Additionally, existing occupational health and safety legislation specifies measures to reduce occupational exposures of employees, and some of these measures also serve to reduce unintentional releases (CanLII 2009).

Non-regulatory measures (e.g., guidelines, best practices) are also in place at petroleum sector facilities to reduce unintentional releases. Such control measures include appropriate material selection during the design and setup processes; regular inspection and maintenance of storage tanks, pipelines and other process equipment; the implementation of leak detection and repair or other equivalent programs; the use of floating roofs in above-ground storage tanks to reduce the internal gaseous zone; and the minimal use of underground tanks, which can lead to undetected leaks or spills (SENES 2009).

Under the Canada Shipping Act, 2001 (Canada 2001), releases of petroleum substances from marine loading and unloading and transportation are managed by pollution prevention and response provisions (Parts 8 and 9), including the establishment of pollution prevention plans and pollution emergency plans for any discharges during loading or unloading activities.

For those substances containing highly volatile components (e.g., low boiling point naphthas, gasoline), a vapour recovery system is generally implemented or recommended at loading terminals of Canadian petroleum facilities (SENES 2009). Such a system is intended to reduce evaporative emissions during handling procedures.

Intentional releases of petroleum products to Canadian marine waters have been regulated under the Canada Shipping Act, 2001 and the Migratory Birds Convention Act, 1994 to reduce the exposure of and hazard to seabirds through direct and indirect effects. The National Aerial Surveillance Program of Transport Canada was designed to monitor and deter such releases (Transport Canada 2010).

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Appendix 4: Release estimation of industry-restricted HFOs during transportation

Table A4.1. Reported and extrapolated release volumes and spill numbers of HFO spilled in Canada based on historical Bunker C spill data from the Environment Canada Spill Line database (2000–2009) (Environment Canada 2011)
YearAverage spill volume (litres)Maximum single spill volume (litres)Median spill volume (litres)Number spills reported% of spills with unknown volumeTotal known volume spilled
(litres)
Extrapolated total volume spilled (litres)[1]
200912 59298 0006361643.8113 330162 834
200821 101196 000751526.7232 115260 404
200727 000222 4602002722.2566 995609 428
2006119715 0002613225.028 72685 303
20056351127 1842275236.5209 599343 969
2004752398 0001823930.8203 131287 997
2003423079 4901324334.9118 438224 520
2002232560 0002275827.697 662210 815
2001318265 0002163218.882 744125 177
2000208327 822952528.037 49186 995
Total volume spilled1 690 2312 397 441
[1] The extrapolated total volume was calculated using a proportional estimate of known spills to determine the frequency and volume of unknown spill volumes, assuming that the distribution of reported volumes released was representative of all releases.
Table A4.2a. Sources of HFO releases based on Bunker C spill data in Canada, 2000–2009 (Environment Canada 2011)
SourceTotal spillsVolume spilled (L)Proportion of total volumeAverage volume spilled (L)
Other watercraft43416 7590.24714 371
Pipeline13333 4310.19733 343
Marine tanker9323 5230.19140 440
Other46156 3740.0934739
Other industrial plant44133 5400.0793257
Marine terminal16132 0930.07812 008
Train1161 3040.03610 217
Tank truck2137 4310.0222202
Refinery2331 9040.0191679
Other storage facilities2228 9450.0171809
Unknown3692940.005774
Storage depot765500.004936
Transport truck551500.0031030
Barge850180.0031004
Bulk carrier1238050.002951
Chemical plant222700.0012270
Electrical equipment712740.001182
Other motor vehicle611290.001282
Production field44180.000139
Migration2200.00020
Municipal sewer1 NA[a]NANA
Service station1 NANA NA
Total3391 690 23216583
[a] NA: Data not available.
Table A4.2b. Causes of HFO releases based on Bunker C spill data in Canada, 2000–2009 (Environment Canada 2011)
CauseTotal spillsVolume spilled (L)Proportion of volumeAverage volume spilled (L)
Pipe leak74644 5150.38110 742
Unknown72414 9930.24611 216
Sinking5222 8600.132111 430
Other47141 9640.0844302
Grounding798 9800.05932 993
Overflow3561 6920.0362056
Above-ground tank leak1951 5970.0313440
Valve, fitting leak2316 6000.010755
Container leak2111 2670.007751
Discharge1810 1740.0061130
Overturn666370.0041659
Process upset349280.0031643
Underground tank leak228800.0022880
Well blowout25000.000250
Cooling system leak24430.000221
Derailment32000.000200
Total3391 690 232111 604


Table A4.2c. Reasons for HFO releases based on Bunker C spill data in Canada, 2000–2009 (Environment Canada 2011)
ReasonTotal spillsVolume spilled (L)Proportion of volumeAverage volume spilled (L)
Unknown119721 9690.42710 617
Material failure42270 4030.1607726
Human error56263 6050.1565380
Other29196 3160.11610 332
Fire, explosion198 0000.05898 000
Equipment failure6577 1780.0461642
Negligence335 0000.02135 000
Gasket, joint1119 0110.0111728
Damage by equipment455200.0031840
Power failure222700.0012270
Migration2200.00020
Intent21820.000182
Corrosion25690.000569
Weld, seam failure11900.000190
Total3391 690 232112 535

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