Irreversible reaction

Side reaction - oxidation of the brine's hydrogen sulfide by chlorine to sulfur

H2S+Cl2S+2HCl

Direction
Irreversible
Processes
1
Stated as
Fixed conversion
Heat of reaction
ΔH = -294,620 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
H2SHydrogen sulfide7783-06-4reactant-1
Cl2Chlorine7782-50-5reactant-1
SSulfur7704-34-9product1
HClHydrogen chloride7647-01-0product2

In the processes

  • Bromine from bromide brine by chlorine oxidation and steaming-out (Smackover-type brine)Concept · not reviewed

    H2S_OX · Side reaction - oxidation of the brine's hydrogen sulfide by chlorine to sulfurH2S + Cl2 → S + 2 HCl

    Stated as
    Fixed conversion
    Element balance
    Balances in every element
    Conversion
    100 % of H2S (assumed: D-005: the representative side reaction that consumes the excess chlorine of natural brines (US 4 719 096, Background and Detailed Description: side reactions take about 25 % of the chlorine); all H2S taken to elemental sulfur (ASSUMED; further oxidation to sulfate and the ammonia demand not modelled))
    Heat of reaction
    ΔH = -294,620 kJ/kmol at 298.15 K, as written (assumed: H2S(aq) + Cl2(g) -> S(rhombic) + 2 H+ + 2 Cl-(aq) from NBS tables (Wagman et al. 1982), recalled, to verify (O-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.

  1. US 4 719 096 (Ethyl Corp.), https://patents.google.com/patent/US4719096

    For the reaction · cited by Bromine from bromide brine by chlorine oxidation and steaming-out (Smackover-type brine)

  2. D-005: the representative side reaction that consumes the excess chlorine of natural brines (US 4 719 096, Background and Detailed Description: side reactions take about 25 % of the chlorine); all H2S taken to elemental sulfur (ASSUMED; further oxidation to sulfate and the ammonia demand not modelled)

    For the conversion · cited by Bromine from bromide brine by chlorine oxidation and steaming-out (Smackover-type brine)

  3. H2S(aq) + Cl2(g) -> S(rhombic) + 2 H+ + 2 Cl-(aq) from NBS tables (Wagman et al. 1982), recalled, to verify (O-5)

    For the heat of reaction · cited by Bromine from bromide brine by chlorine oxidation and steaming-out (Smackover-type brine)