Irreversible reaction

Neutralisation of the residual catalyst (acidulator)

CH3NaO+HClNaCl+CH4O

Direction
Irreversible
Processes
1
Stated as
Fixed conversion
Heat of reaction
ΔH = -55,800 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
CH3NaOSodium methoxide124-41-4reactant-1
HClHydrogen chloride7647-01-0reactant-1
NaClSodium chloride7647-14-5product1
CH4OMethanol67-56-1product1

In the processes

  • Refined glycerol (USP) from biodiesel crude glycerol (10 000 t/a, concept)Concept · not reviewed

    NEUT1 · Neutralisation of the residual catalyst (acidulator)CH3ONa + HCl → NaCl + CH3OH

    Stated as
    Fixed conversion
    Phase
    liquid
    Element balance
    Balances in every element
    Conversion
    100 % of NAOME (assumed: D-005: strong base and acid, HCl 10 % in excess; acidulation to about pH 3 (Attarbachi et al. 2024, section 1))
    Heat of reaction
    ΔH = -55,800 kJ/kmol at 298.15 K, as written (assumed: taken equal to the strong acid / strong base neutralisation in dilute water at 298 K (about -55.8 kJ/mol, textbook value); methoxide plus HCl in the glycerol-methanol medium not sourced, ASSUMED (D-005))

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. D-005: strong base and acid, HCl 10 % in excess; acidulation to about pH 3 (Attarbachi et al. 2024, section 1)

    For the conversion · cited by Refined glycerol (USP) from biodiesel crude glycerol (10 000 t/a, concept)

  2. taken equal to the strong acid / strong base neutralisation in dilute water at 298 K (about -55.8 kJ/mol, textbook value); methoxide plus HCl in the glycerol-methanol medium not sourced, ASSUMED (D-005)

    For the heat of reaction · cited by Refined glycerol (USP) from biodiesel crude glycerol (10 000 t/a, concept)