Irreversible reaction

2NO+3H2+H2SO4H8N2O6S

Direction
Irreversible
Processes
1
Stated as
Fixed conversion
Heat of reaction
ΔH = -455,180 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
NONitric oxide10102-43-9reactant-2
H2Hydrogen1333-74-0reactant-3
H2SO4Sulfuric acid7664-93-9reactant-1
H8N2O6SHydroxylammonium sulfate10039-54-0product1

In the processes

  • Hydroxylammonium sulfate by catalytic NO hydrogenation (30 kt/a NH2OH, 25 wt% solution)Concept · not reviewed

    HAS_FORM2 NO + 3 H2 + H2SO4 → HAS

    Stated as
    Fixed conversion
    Element balance
    Balances in every element
    Conversion
    80.85 % of NO (assumed: D-007: 0.90 per pass x 0.89829 NH2OH selectivity (derived from US 4,997,635 product ratio and US 4,895,711 N2O selectivity))
    Heat of reaction
    ΔH = -455,180 kJ/kmol at 298.15 K, as written (assumed: D-005: 2 x (dHf NH3OH+(aq) -137.3 - dHf NO(g) 90.29) kJ/mol, NBS tables (Wagman et al. 1982) values not re-read in this run (O-4); acid speciation neglected)
    Catalyst
    Pt on graphite, sulfur-modified, suspended (US 4,895,711)

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. US 4,895,711

    For the reaction · cited by Hydroxylammonium sulfate by catalytic NO hydrogenation (30 kt/a NH2OH, 25 wt% solution)

  2. US 4,997,635

    For the reaction · cited by Hydroxylammonium sulfate by catalytic NO hydrogenation (30 kt/a NH2OH, 25 wt% solution)

  3. EP 1 343 719

    For the reaction · cited by Hydroxylammonium sulfate by catalytic NO hydrogenation (30 kt/a NH2OH, 25 wt% solution)

  4. D-007: 0.90 per pass x 0.89829 NH2OH selectivity (derived from US 4,997,635 product ratio and US 4,895,711 N2O selectivity)

    For the conversion · cited by Hydroxylammonium sulfate by catalytic NO hydrogenation (30 kt/a NH2OH, 25 wt% solution)

  5. D-005: 2 x (dHf NH3OH+(aq) -137.3 - dHf NO(g) 90.29) kJ/mol, NBS tables (Wagman et al. 1982) values not re-read in this run (O-4); acid speciation neglected

    For the heat of reaction · cited by Hydroxylammonium sulfate by catalytic NO hydrogenation (30 kt/a NH2OH, 25 wt% solution)