Irreversible reaction
Oxidation of the sulfide of the white liquor alkali to sulfate
- Direction
- Irreversible
- Processes
- 1
- Stated as
- Stoichiometry only
- Heat of reaction
- ΔH = -1,022,300 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
| Species | Name | CAS | Role | Coefficient |
|---|---|---|---|---|
| Na2S | Sodium sulfide | 1313-82-2 | reactant | -1 |
| O2 | Oxygen | 7782-44-7 | reactant | -2 |
| Na2SO4 | Sodium sulfate | 7757-82-6 | product | 1 |
Also stated as Na2SO4 → Na2S + 2 O2.
In the processes
- Bleached softwood kraft pulp with chemical recovery (1000 ADt/d market pulp, concept)Concept · not reviewed
SULF_OX· Oxidation of the sulfide of the white liquor alkali to sulfateNa2S + 2 O2 → Na2SO4- Phase
- mixed
- Element balance
- Balances in every element
- Heat of reaction
- ΔH = -1,022,300 kJ/kmol at 298.15 K, as written (assumed: formation enthalpies Na2SO4(s) -1387.1, Na2S(s) -364.8 kJ/mol (NBS tables); solid-state value used for the dissolved salts)
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.
formation enthalpies Na2SO4(s) -1387.1, Na2S(s) -364.8 kJ/mol (NBS tables); solid-state value used for the dissolved salts
For the heat of reaction · cited by Bleached softwood kraft pulp with chemical recovery (1000 ADt/d market pulp, concept)