Irreversible reaction

4NO+3O₂+2H₂Ogives4HNO₃

Direction: Irreversible
Processes: 2
Stated as: Fixed conversion
Element balance: Checked: balances in all 2 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
NO	Nitric oxide	10102-43-9	reactant	-4
O₂	Oxygen	7782-44-7	reactant	-3
H₂O	Water	7732-18-5	reactant	-2
HNO₃	Nitric acid	7697-37-2	product	4

In the processes

Hydroxylammonium sulfate by catalytic NO hydrogenation (30 kt/a NH2OH, 25 wt% solution)Concept · not reviewed
NO_ABS4 NO + 3 O2 + 2 H2O → 4 HNO3
Stated as
Fixed conversion
Element balance
Balances in every element
Conversion
100 % of O2 (assumed: D-005: the O2 left after R102 oxidises NO and is absorbed as HNO3 in the condensate (US 3,110,563 and EP 0 945 401 both report HNO3 in the burner condensate); complete, ASSUMED)
Weak nitric acid by dual-pressure ammonia oxidation (1000 t/d HNO3 as 60 wt% acid)Concept · not reviewed
NO_ABS4 NO + 3 O2 + 2 H2O → 4 HNO3
Stated as
Fixed conversion
Element balance
Balances in every element
Conversion
29.81 % of NO (assumed: D-007: the HNO3 of a 42 wt% weak acid condensing in E105, scripts/hno3_balance.py)

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.

D-005: the O2 left after R102 oxidises NO and is absorbed as HNO3 in the condensate (US 3,110,563 and EP 0 945 401 both report HNO3 in the burner condensate); complete, ASSUMED
For the conversion · cited by Hydroxylammonium sulfate by catalytic NO hydrogenation (30 kt/a NH2OH, 25 wt% solution)
D-007: the HNO3 of a 42 wt% weak acid condensing in E105, scripts/hno3_balance.py
For the conversion · cited by Weak nitric acid by dual-pressure ammonia oxidation (1000 t/d HNO3 as 60 wt% acid)