Reversible reaction

CH4O+COC2H4O2

Direction
Reversible (an equilibrium)
Processes
1
Stated as
Fixed conversion
Heat of reaction
ΔH = -37,700 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
CH4OMethanol67-56-1reactant-1
COCarbon monoxide630-08-0reactant-1
C2H4O2Methyl formate107-31-3product1

In the processes

  • Formic acid 85 wt% by methanol carbonylation and methyl formate hydrolysis (50 kt/a)Concept · not reviewed

    CARBCH3OH + CO ⇌ HCOOCH3

    Stated as
    Fixed conversion
    Phase
    mixed
    Element balance
    Balances in every element
    Conversion
    30 % of MEOH (given: US4216339A (UCB, 1980), Example 1: 30 % methanol conversion at 80 C and 44 bar with pure CO and sodium methoxide, stated as 75 % of the about 40 % equilibrium limit at those conditions; the patent advises staying below 75-85 % of the limit (Example 2))
    Heat of reaction
    ΔH = -37,700 kJ/kmol at 298.15 K, as written (assumed: liquid phase, CO gas: ideal-gas formation enthalpies (cheme chemistry thermo, ATcT) minus the heats of vaporization at 298.15 K of methyl formate (28.57 kJ/mol) and methanol (37.46 kJ/mol) (cheme chemistry props --source Thermo); scripts/balance.py)
    Catalyst
    sodium methoxide, 2.5 wt% in the liquid feed

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. US4216339A, UCB SA (granted 1980-08-05): loop reactor, 70-110 C, 20-110 bar, 0.2-4 wt% methoxide, CO yield 92 mol% (Example 1), water limits (description)

    For the reaction · cited by Formic acid 85 wt% by methanol carbonylation and methyl formate hydrolysis (50 kt/a)

  2. MDPI Catalysts 11 (2021) 869 (open access): conventional route with 2.5 wt% sodium methoxide at 80 C and 4.5 MPa, about 30 % methanol conversion (introduction; identified through search, not read in full)

    For the reaction · cited by Formic acid 85 wt% by methanol carbonylation and methyl formate hydrolysis (50 kt/a)

  3. US4216339A (UCB, 1980), Example 1: 30 % methanol conversion at 80 C and 44 bar with pure CO and sodium methoxide, stated as 75 % of the about 40 % equilibrium limit at those conditions; the patent advises staying below 75-85 % of the limit (Example 2)

    For the conversion · cited by Formic acid 85 wt% by methanol carbonylation and methyl formate hydrolysis (50 kt/a)

  4. liquid phase, CO gas: ideal-gas formation enthalpies (cheme chemistry thermo, ATcT) minus the heats of vaporization at 298.15 K of methyl formate (28.57 kJ/mol) and methanol (37.46 kJ/mol) (cheme chemistry props --source Thermo); scripts/balance.py

    For the heat of reaction · cited by Formic acid 85 wt% by methanol carbonylation and methyl formate hydrolysis (50 kt/a)