Reversible reaction

2NH₃+CO₂in equilibrium withCH₄N₂O+H₂O

Direction: Reversible (an equilibrium)
Processes: 1
Stated as: Fixed conversion
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

Species	Name	CAS	Role	Coefficient
NH₃	Ammonia	7664-41-7	reactant	-2
CO₂	Carbon dioxide	124-38-9	reactant	-1
CH₄N₂O	Urea	57-13-6	product	1
H₂O	Water	7732-18-5	product	1

Also stated as CH4N2O + H2O → 2 NH3 + CO2 (reversible and irreversible statements are kept apart).

In the processes

Urea by CO2 stripping, total recycle, prilling (2000 t/d, concept)Concept · not reviewed
UREA_SYN2 NH3 + CO2 ⇌ CO(NH2)2 + H2O (sum of carbamate formation and dehydration)
Stated as
Fixed conversion
Phase
liquid
Element balance
Balances in every element
Conversion
58 % of CO2 (assumed: D-005: within the 50-80 % CO2-basis conversion of BREF LVIC-AAF (2007) section 8.2.1 (printed p. 324), at the N/C 2.8, 180 C, 140 bar of the CO2 stripping example of its Table 8.14 (p. 339); not an equilibrium calculation)

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.

BREF LVIC-AAF (2007) section 8.2.1, Tables 8.2 and 8.14
For the reaction · cited by Urea by CO2 stripping, total recycle, prilling (2000 t/d, concept)
D-005: within the 50-80 % CO2-basis conversion of BREF LVIC-AAF (2007) section 8.2.1 (printed p. 324), at the N/C 2.8, 180 C, 140 bar of the CO2 stripping example of its Table 8.14 (p. 339); not an equilibrium calculation
For the conversion · cited by Urea by CO2 stripping, total recycle, prilling (2000 t/d, concept)