Irreversible reaction

Combustion of ethane

Direction: Irreversible
Processes: 4
Stated as: Fixed conversion
Heat of reaction: ΔH = -2,857,268 kJ/kmol (2 processes)
Element balance: Checked: balances in all 4 processes

As the processes state itStoichiometry, conversions, heats of reaction and catalyst windows are taken from each process's files with their provenance. The build checks only that each process's equation balances in every element, from the process's own component formulas; it does not check the numbers. A process's design maturity applies to them.

Species

Species	Name	CAS	Role	Coefficient
C₂H₆	Ethane	74-84-0	reactant	-2
O₂	Oxygen	7782-44-7	reactant	-7
CO₂	Carbon dioxide	124-38-9	product	4
H₂O	Water	7732-18-5	product	6

In the processes

Ammonia from natural gas (1500 t/d, steam reforming with air-fed secondary reformer, Haber-Bosch loop)Concept · not reviewed
C2H6_COMB2 C2H6 + 7 O2 → 4 CO2 + 6 H2O
Scale
Written at 0.5 times the scale
Stated as
Fixed conversion
Element balance
Balances in every element
Conversion
100 % of C2H6 (given: AP-42 section 1.4, Table 1.4-2 footnote b, as CH4_COMB (D-034))
Ethylene and propylene by ethane steam cracking (1000 kt/a ethylene, concept)Concept · not reviewed
COMB_C2H6C2H6 + 3.5 O2 → 2 CO2 + 3 H2O
Scale
Written at 0.5 times the scale
Stated as
Fixed conversion
Element balance
Balances in every element
Conversion
100 % of C2H6 (assumed: D-013: complete combustion)
Hydrogen by natural-gas steam methane reforming with PSA (100 000 Nm3/h, steam export)Concept · not reviewed
COMB_C2H6C2H6 + 3.5 O2 → 2 CO2 + 3 H2O
Scale
Written at 0.5 times the scale
Stated as
Fixed conversion
Element balance
Balances in every element
Conversion
100 % of C2H6 (assumed: complete combustion (D-009))
Heat of reaction
ΔH = -1,428,634 kJ/kmol at 298.15 K, as written (given: standard formation enthalpies, 298.15 K (process/materials.yaml))
Natural gas processing (amine CO2 removal, TEG dehydration, turbo-expander NGL recovery)Concept · not reviewed
C2H6_COMB · Combustion of ethane2 C2H6 + 7 O2 → 4 CO2 + 6 H2O
Scale
Written at 0.5 times the scale
Stated as
Fixed conversion
Element balance
Balances in every element
Conversion
100 % of C2H6 (assumed: D-011)
Heat of reaction
ΔH = -1,428,634 kJ/kmol at 298.15 K, as written (calculated: ideal-gas dHf of process/materials.yaml (ATcT): 2 x -393474 + 3 x -241822 - -83780)

Sources

What the processes cite for this reaction, each source once: for the reaction itself, its conversion, its heat of reaction or its catalyst. As the processes write them; DOIs, US patent numbers and web addresses are linked.

AP-42 section 1.4, Table 1.4-2 footnote b, as CH4_COMB (D-034)
For the conversion · cited by Ammonia from natural gas (1500 t/d, steam reforming with air-fed secondary reformer, Haber-Bosch loop)
D-013: complete combustion
For the conversion · cited by Ethylene and propylene by ethane steam cracking (1000 kt/a ethylene, concept)
complete combustion (D-009)
For the conversion · cited by Hydrogen by natural-gas steam methane reforming with PSA (100 000 Nm3/h, steam export)
standard formation enthalpies, 298.15 K (process/materials.yaml)
For the heat of reaction · cited by Hydrogen by natural-gas steam methane reforming with PSA (100 000 Nm3/h, steam export)
D-011
For the conversion · cited by Natural gas processing (amine CO2 removal, TEG dehydration, turbo-expander NGL recovery)
ideal-gas dHf of process/materials.yaml (ATcT): 2 x -393474 + 3 x -241822 - -83780
For the heat of reaction · cited by Natural gas processing (amine CO2 removal, TEG dehydration, turbo-expander NGL recovery)