Reversible reaction

Cl2S2+Cl22Cl2S

Direction
Reversible (an equilibrium)
Processes
1
Stated as
Fixed conversion
Heat of reaction
ΔH = -18,400 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
Cl2S2Disulfur dichloride10025-67-9reactant-1
Cl2Chlorine7782-50-5reactant-1
Cl2SSulfur dichloride10545-99-0product2

In the processes

2 statements in one process: a process may state the reaction more than once (both ways, or at another scale).

  • Thionyl chloride from sulfur, chlorine and SO2 over activated carbon (3.75 t/h)Concept · not reviewed

    SCL2_FORMS2Cl2 + Cl2 ⇌ 2 SCl2

    Stated as
    Fixed conversion
    Element balance
    Balances in every element
    Conversion
    90 % of S2CL2 (assumed: D-004: 90 % of the inlet S2Cl2 chlorinated in R102 at 313 K, ASSUMED (no sourced equilibrium for the liquid))
    Heat of reaction
    ΔH = -18,400 kJ/kmol at 298.15 K, as written (given: ideal-gas formation enthalpies of materials.yaml (NIST WebBook), 298.15 K; gas basis)
  • Thionyl chloride from sulfur, chlorine and SO2 over activated carbon (3.75 t/h)Concept · not reviewed

    SCL2_FORM_R201S2Cl2 + Cl2 ⇌ 2 SCl2

    Stated as
    Fixed conversion
    Element balance
    Balances in every element
    Conversion
    95 % of S2CL2 (assumed: D-005: 95 % of the S2Cl2 entering R201 chlorinated to SCl2 over the carbon at 398-473 K with Cl2 5 % over stoichiometric, ASSUMED (no sourced gas-phase conversion))
    Heat of reaction
    ΔH = -18,400 kJ/kmol at 298.15 K, as written (given: ideal-gas formation enthalpies of materials.yaml (NIST WebBook), 298.15 K; gas basis)

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. US2431823A: chlorine converts S2Cl2 to SCl2 and the sulfur chlorides coexist in equilibrium, so which chloride is fed matters little (description)

    For the reaction · cited by Thionyl chloride from sulfur, chlorine and SO2 over activated carbon (3.75 t/h)

  2. D-004: 90 % of the inlet S2Cl2 chlorinated in R102 at 313 K, ASSUMED (no sourced equilibrium for the liquid)

    For the conversion · cited by Thionyl chloride from sulfur, chlorine and SO2 over activated carbon (3.75 t/h)

  3. ideal-gas formation enthalpies of materials.yaml (NIST WebBook), 298.15 K; gas basis

    For the heat of reaction · cited by Thionyl chloride from sulfur, chlorine and SO2 over activated carbon (3.75 t/h)

  4. US2431823A: a sulfur chloride, S2Cl2 or SCl2, may be fed with SO2 and Cl2 over the carbon (description)

    For the reaction · cited by Thionyl chloride from sulfur, chlorine and SO2 over activated carbon (3.75 t/h)

  5. D-005: 95 % of the S2Cl2 entering R201 chlorinated to SCl2 over the carbon at 398-473 K with Cl2 5 % over stoichiometric, ASSUMED (no sourced gas-phase conversion)

    For the conversion · cited by Thionyl chloride from sulfur, chlorine and SO2 over activated carbon (3.75 t/h)