Reversible reaction

C3H8+3H2O3CO+7H2

Direction
Reversible (an equilibrium)
Processes
1
Stated as
Equilibrium
Heat of reaction
ΔH = 498,281 kJ/kmol (one process)
Element balance
Checked: balances
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

SpeciesNameCASRoleCoefficient
C3H8Propane74-98-6reactant-1
H2OWater7732-18-5reactant-3
COCarbon monoxide630-08-0product3
H2Hydrogen1333-74-0product7

Also stated as C3H8 + 3 H2O → 3 CO + 7 H2 (reversible and irreversible statements are kept apart).

In the processes

  • Hydrogen by natural-gas steam methane reforming with PSA (100 000 Nm3/h, steam export)Concept · not reviewed

    PRO_REFC3H8 + 3 H2O ⇌ 3 CO + 7 H2

    Stated as
    Equilibrium
    Element balance
    Balances in every element
    Heat of reaction
    ΔH = 498,281 kJ/kmol at 298.15 K, as written (given: standard formation enthalpies, 298.15 K (process/materials.yaml))
    Catalyst
    Nickel reforming catalyst · active phase Ni
    Operating window
    723.15–1,223.2 K (450–950 °C), 1,500–4,000 kPa (15–40 bar) (assumed: typical industrial range of the core reaction library entry steam_reforming; confirm with the vendor)
    Poisons
    sulfur compounds, chlorides

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.

  1. 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)

  2. Twigg (ed.), Catalyst Handbook, 2nd ed., Manson (1989), via cheme chemistry library steam_reforming

    For the catalyst · cited by Hydrogen by natural-gas steam methane reforming with PSA (100 000 Nm3/h, steam export)