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Table 6 Key reactions for DME synthesis from syngas

From: The bioliq® bioslurry gasification process for the production of biosynfuels, organic chemicals, and energy

Reaction Reaction equation ΔrH
(kJ/mol)
ΔrG
(kJ/mol)
1. CH3OH synthesis 2 CO + 4 H2 2 CH3OHgas -182 -58
2. CH3OH dehydratization 2 (CH3OH)gas DME + (H2O)gas -24 -4
3. CO-shift reaction CO + (H2O)gas H2 + CO2 -41 -29
4. DME synthesis 3 CO + 3 H2 DME + CO2 -247 -91
  1. DME, dimethyl ether; ΔrH, reaction enthalpy; ΔrG, Gibbs free energy.