Irreversible reaction
Ammonia oxidation to nitrous oxide (side reaction)
- Direction
- Irreversible
- Processes
- 3
- Stated as
- Fixed conversion
- Element balance
- Checked: balances in all 3 processes
Species
In the processes
- Hydroxylammonium sulfate by catalytic NO hydrogenation (30 kt/a NH2OH, 25 wt% solution)Concept · not reviewed
NH3_N2O4 NH3 + 4 O2 → 2 N2O + 6 H2O- Scale
- Written at 2 times the scale
- Stated as
- Fixed conversion
- Element balance
- Balances in every element
- Conversion
- 1.403 % of
NH3(assumed: D-005: IPCC 2006 Vol. 3 Ch. 3 Table 3.3 (p. 3.23) default for atmospheric-pressure ammonia oxidation, 5 kg N2O/t HNO3, referred to the NH3 nitrogen (N2O-N/HNO3-N x 0.98); an inventory default, not a gauze measurement) - Catalyst
- Pt/Rh gauze
- Weak nitric acid by dual-pressure ammonia oxidation (1000 t/d HNO3 as 60 wt% acid)Concept · not reviewed
NH3_N2O4 NH3 + 4 O2 → 2 N2O + 6 H2O- Scale
- Written at 2 times the scale
- Stated as
- Fixed conversion
- Element balance
- Balances in every element
- Conversion
- 1.905 % of
NH3(assumed: D-005: the NH3 share that forms 7 kg N2O per t HNO3, the IPCC 2006 default for medium-pressure combustion plants (Vol. 3 Ch. 3 Table 3.3, p. 3.23), scripts/hno3_balance.py) - Catalyst
- Pt/Rh gauze
- Sodium nitrite from ammonia oxidation and soda absorption (with sodium nitrate by inversion)Concept · not reviewed
NH3_N2O· Ammonia oxidation to nitrous oxide (side reaction)4 NH3 + 4 O2 → 2 N2O + 6 H2O- Scale
- Written at 2 times the scale
- Stated as
- Fixed conversion
- Element balance
- Balances in every element
- Conversion
- 1.4 % of
NH3(assumed: D-005: transferred from the IPCC 2006 default for atmospheric-pressure nitric acid plants (5 kg N2O per t HNO3, Vol. 3 Ch. 3 Table 3.3), i.e. 0.0143 mol N2O-N per mol product N; an analogy, not a nitrite-plant measurement) - Catalyst
- Pt/Rh gauze (95/5)
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.
IPCC 2006 Guidelines Vol. 3 Ch. 3, Table 3.3
For the reaction · cited by Hydroxylammonium sulfate by catalytic NO hydrogenation (30 kt/a NH2OH, 25 wt% solution)
D-005: IPCC 2006 Vol. 3 Ch. 3 Table 3.3 (p. 3.23) default for atmospheric-pressure ammonia oxidation, 5 kg N2O/t HNO3, referred to the NH3 nitrogen (N2O-N/HNO3-N x 0.98); an inventory default, not a gauze measurement
For the conversion · cited by Hydroxylammonium sulfate by catalytic NO hydrogenation (30 kt/a NH2OH, 25 wt% solution)
IPCC 2006 Guidelines Vol. 3 Ch. 3, section 3.3 and Table 3.3
For the reaction · cited by Weak nitric acid by dual-pressure ammonia oxidation (1000 t/d HNO3 as 60 wt% acid)
D-005: the NH3 share that forms 7 kg N2O per t HNO3, the IPCC 2006 default for medium-pressure combustion plants (Vol. 3 Ch. 3 Table 3.3, p. 3.23), 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)
IPCC 2006 Guidelines Vol. 3 Ch. 3, section 3.3, Table 3.3
For the reaction · cited by Sodium nitrite from ammonia oxidation and soda absorption (with sodium nitrate by inversion)
D-005: transferred from the IPCC 2006 default for atmospheric-pressure nitric acid plants (5 kg N2O per t HNO3, Vol. 3 Ch. 3 Table 3.3), i.e. 0.0143 mol N2O-N per mol product N; an analogy, not a nitrite-plant measurement
For the conversion · cited by Sodium nitrite from ammonia oxidation and soda absorption (with sodium nitrate by inversion)